Article 4 Building Types

The regulations of this article, Article 4, apply to all buildings and sites, unless otherwise expressly stated.

Preserve architectural character. The building type regulations are intended to preserve the architectural character and identity of the neighborhoods, districts, and corridors of the City, while allowing for modernization, flexibility of use, improvement of the physical quality of buildings, and increasing the long-term value and sustainability of buildings.

Promote buildings for people. The building type regulations are intended to enhance the pedestrian experience and protect the historic, humanscaled building form of the City by promoting clearly articulated, well-organized facades along public ways and yielding building proportions and details comfortable to and in line with the scale of people.

§ 660-17 Other applicable regulations.

Historic district regulations. All buildings located within an historic district established by Chapter 328 of the City Code are subject to the regulations of Chapter 328 and review by the Historical Architectural Review Board (HARB) and City Council.

Uses. Except as defined in the building type regulations and overlay zones, uses are allowed by zone, subject to the regulations of Article 5.

Accessory uses and structures. Except as defined in the building type regulations, accessory uses and structures are subject to the regulations of Article 6.

Existing buildings and lots. See Article 13 for buildings constructed and lots established prior to the adoption of these regulations that do not conform to these regulations.

§ 660-18 General to all building types.

Allowed building types. Building types are allowed in zones per Table 660-3. All buildings and site development must comply with one of the building types in this article, unless otherwise expressly stated in these zoning regulations.

Table 660-3. Allowed Building Types by Zone
Building Types	Mixed-Use Zones							Neighborhood Zones						Industrial Zones			Public and Institutional Zones		Section
	MX				GX			Neighborhood Zones						Industrial Zones			Public and Institutional Zones
	-D	-C	-S	-N	-D	-C	-N	NX	N1	N2	N3	N4	N5	IX	IG	IM	P1	P2
Storefront building	•	•	•	•	—	—	—	—	—	—	—	—	—	—	—	—	—	—	§ 660-20
Commercial center	—	—	•	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	§ 660-21
General building	—	—	—	—	•	•	—	•	—	—	—	—	—	•	•	•	—	•	§ 660-22
Small general building	—	—	—	—	—	•	•	•	○	○	•	—	—	—	—	—	—	—	§ 660-23
Town rowhouse	—	—	—	—	—	•	•	—	—	•	—	—	—	—	—	—	—	—	§ 660-24
Urban rowhouse	—	—	—	—	—	—	•	—	•	—	—	—	—	—	—	—	—	—	§ 660-25
Lane rowhouse	—	—	—	—	—	—	—	—	◑	◑	—	—	—	—	—	—	—	—	§ 660-26
Suburban rowhouse	—	—	—	—	—	•	—	•	—	—	•	—	—	—	—	—	—	—	§ 660-27
Twin house	—	—	—	—	—	•	•	—	—	—	•	•	—	—	—	—	—	—	§ 660-28
House A	—	—	—	—	—	•	•	•	—	•	•	•	—	—	—	—	—	—	§ 660-29
House B	—	—	—	—	—	—	—	—	—	—	•	•	•	—	—	—	—	—	§ 660-30
House C	—	—	—	—	—	—	—	—	—	—	—	—	•	—	—	—	—	—	§ 660-31
Workshop building	—	—	—	—	—	—	—	—	—	—	—	—	—	•	•	•	○	○	§ 660-32
Civic building	○	—	—	—	•	•	•	—	—	—	—	—	—	—	—	—	•	•	§ 660-33

KEY:
•	=	Allowed
◑	=	Only if fronting on a C street, unless otherwise stated
○	=	Requires special exception approval
—	=	Not allowed

(1)

Existing buildings. Some existing buildings may not exactly match a building type allowed within the subject zone (e.g., a rowhouse building in zone that does not expressly allow rowhouses). In such cases, alterations to these existing buildings must be reviewed for compliance with the building type regulations applicable to an allowed building type in the subject zone that most closely matches the existing building.

(a)

The civic building type may be deemed the "closest match" only when the existing building is occupied by a use in the civic and institutional use group or specific large indoor or outdoor entertainment uses per § 660-33F.

(b)

The lane rowhouse building type may be deemed the "closest match" only when the existing building meets the lot frontage requirements applicable to a lane rowhouse building.

(c)

Where the civic building and lane rowhouse types are not the "closest match," the Zoning Officer must first evaluate the existing building based on its compliance with the following building type regulations and the "closest match" must meet all of the following regulations for that building type:

[1]

Lot frontage (e.g., fronting an A or B street);

[2]

Minimum lot width;

[3]

Minimum lot size;

[4]

Minimum or maximum front streetwall;

[5]

Minimum or maximum building height; and

[6]

Minimum side yard setbacks (e.g., if side yard setbacks are required on both sides, the building must be a detached structure).

(d)

Where twin house and rowhouse types are allowed, structures with only two connected house units must be deemed the "closest match" with the twin house when the two outer side yards of each twin house are at least four feet.

(e)

In cases where two or more allowed building types are an equal match to the existing building, the following apply:

[1]

The Zoning Officer must allow the building type that permits the highest number of dwelling units to be designated as the closest match. If a special exception is required for a chosen building type, the applicant must obtain a special exception approval per § 660-115.

[2]

If the highest number of dwelling units is the same, then the building type description and remaining regulations, such as entrance and roof type, must be used to determine the "closest match."

Building regulation tables. Building type-specific regulations are presented in a series of building regulation tables for each building type. Unless otherwise expressly noted, a "—" in a cell of a building regulation table means there is no requirement or a requirement is not applicable.

Number of principal buildings. One principal building is allowed per lot, unless otherwise stated in the building type regulations. Where multiple principal buildings are allowed on a lot, each principal building must meet all building type regulations, unless otherwise expressly stated.

Accessible lot. A principal building may only be constructed or placed on a lot where the building fronts a street and vehicular access exists meeting the standards of the City's land development and subdivision regulations.

Permanent structures. All buildings must be of permanent construction without a chassis, hitch, or wheels, or other features that would make the structure mobile, unless otherwise expressly stated in this chapter, and except as follows:

(1)

Temporary construction buildings. Temporary construction buildings are allowed per § 660-57B.

(2)

Temporary food trucks. Food trucks are allowed on sites per § 660-37F. See § 660-19E for outdoor sites accommodating food truck lots.

(3)

Manufactured/mobile home parks. See § 660-19D for manufactured home or mobile home park regulations.

Sensitive environmental areas. Where sensitive environmental areas, such as steep slopes, floodplains, or valuable tree canopies, prevent a building from being constructed within the build-to zone, the Zoning Officer may relocate the build-to zone immediately behind the environmentally sensitive area.

Treatment of yards. All yards must consist of landscape areas, patio space, or sidewalk space, unless otherwise expressly stated. See § 660-156 for definition of "yards." See Article 8 for landscape and site design regulations.

(1)

Parking locations. Paved vehicular areas (parking lots, loading areas, drives) must be located per the building type regulations.

(2)

Driveways crossing yards. Paved vehicular areas are limited to specific locations per the applicable zone building regulations. Driveways may cross through yards as follows:

(a)

Where permitted as access to the lot, driveways may cross perpendicularly through the front or side street yards, except as otherwise expressly stated.

(b)

In all zones, driveways may cross perpendicularly through the side and rear yards to connect to parking on adjacent lots, provided an easement is obtained for access.

Trash and recycling storage locations. All trash, recycling, and other waste storage areas for buildings and sites must comply with the regulations of this subsection, § 660-18H. Recycling includes collection of any materials for reuse, including donation collection containers for clothing or goods. These regulations are not intended to apply to temporary construction dumpsters or trash, recycling, or waste temporarily moved to the curb for routine pick-up.

(1)

Rear or interior side yard. Trash, recycling, and other waste areas must be located in the rear or interior side yard of the lot, except as allowed by this subsection, § 660-18H.

(2)

Side street yards. When no rear or side yard exists, trash, recycling, and other waste areas may be located in a side-street yard.

(3)

Concrete pad. A concrete pad or other approved hard surface is required for all loading and refuse areas.

(4)

Screening. Storage areas must be screened from any street. The height of the screen must be tall enough to screen the containers inside and a minimum of four feet. The Zoning Officer may require additional height as needed for complete screening. See § 660-78 for additional side and rear buffers.

(a)

Opaque screen. An opaque wall, such as a building wall or masonry wall, or a fence is required around three sides of the area to be screened. The wall or fence may be constructed of masonry or wood; chain link fence without slats is prohibited. If the opening is visible from the street, an opaque gate is required.

Loading locations. Unless otherwise defined by the building type, all loading areas must be located as follows.

(1)

Rear yard. All loading activities must occur in the rear or interior yard except as allowed in any I zone building types.

(2)

Access doors and docks. All loading docks and access doors must be located on a rear facade or interior yard facade, except as allowed on any I zone building types.

(3)

Screening. See Article 8 for required frontage, side and rear buffers.

Designation of front streets. The determination of fronts of lots is key to the building type regulations, requiring the highest level of facade treatment and restricting the location of parking, driveways, and garage entrances.

(1)

Establishing the front, side-street, side, and rear lot lines. The location of A, B, and C streets abutting a lot generally determines the front, side-street, side, and rear of a lot. Other situations that determine fronts are established in § 660-18J(9).

Figure 660-18(1) Street Frontages

(2)

A, B, and C street designation. A, B, and C streets are designated on the streets map for zoning, maintained as a layer on the City's geographic information system (GIS), under the direction of the IT Director.

(a)

A streets. A streets include primary corridors throughout the City and neighborhood streets where the fronts of buildings and principal entrances occur. A streets are considered front streets.

(b)

B streets. B streets tend to run perpendicular to A streets and are typically considered side streets.

(c)

C streets. C streets are narrower streets and lanes with right-of-way widths of 25 feet or less, that often serve as rear lot access to other properties fronting other streets, utility corridors, and may also include lane rowhouses.

(3)

Zoning Officer determination. The Zoning Officer may determine the front, side-street, side, and rear lot lines of the lot based upon the context, including the location of the lot on the block, location of existing front facades along the street, use of the site, proposed redevelopment, or other planning efforts.

(4)

Front lot line. All lots must have a front lot line abutting a street right-of-way. Front lot lines are established by one of the following:

(a)

A streets. A lot line abutting an A street is typically the front lot line, unless otherwise determined by the Zoning Officer.

(b)

Interior lot. For an interior lot with only one street frontage, that street right-of-way frontage is the front lot line, irrespective of the street's designation as an A, B, or C street.

(c)

Corner lots.

[1]

On corner lots at the intersection of an A and B street, the A-street frontage is the front lot line.

[2]

On corner lots at the intersection of a B and C street, the B-street frontage is the front lot line.

[3]

On corner lots at the intersection of two A or two B streets, the street with the most existing front treatments, as determined by the Zoning Officer, must be treated as the front of the lot. Typically, the narrower frontage should be treated as the front of the lot. If the two frontages are similar (existing front treatments and one frontage is at least 80% the length of the other), the applicant may choose which frontage to treat as the front of the lot. The second street frontage must be treated as a second front or as side-street frontage.

(d)

C streets. C-street frontage may be the front lot line only if no other street frontage exists.

(e)

Where possible, the design layout of dwelling structures shall be such that the front of one structure does not face the rear of another.

(5)

A street double-frontage lots. In all zones except I zones, where a lot extends from one A street through the block to another A street that is generally parallel to the first A street, the lot is a double-frontage lot and the following applies:

(a)

The subject lot's frontage facing the same or most similar zone on the lot directly across the street must meet one of the building types for the subject lot's zone. See Figure 660-18(2).

(b)

The second frontage should be designed in a manner compatible with the lots across the street including transparency, entrance location, shadow lines, roof type, height, and facade materials.

Figure 660-18(2) Example of a Double-Frontage Lot (Building Section)

(6)

Rear lot lines. Rear lot lines are typically opposite of front lot lines and abut either an alley, C street, or the side or rear lot line of another lot.

(7)

Side-street lot line. Side street lot lines are any street frontages that are not front or rear lot lines.

(8)

Side lot line. Side lot lines are interior to the lot, abutting another lot, and perpendicular to the front lot line.

(9)

Other frontages to be treated with front facade regulations. The following other frontages must be treated with front facade regulations per the building type, in addition to any street frontage determined by this subsection.

(a)

Waterfronts. Buildings on lots with major waterway frontage must treat building facades facing the waterway as front facades, unless otherwise stated in this chapter. See definition of "major waterway" in § 660-154.

(b)

Civic or open space frontage. Buildings on lots containing or abutting P1-zoned parks, plazas, or other public open spaces must treat building facades facing that space as front facades with the exception of minimum entrance requirements.

Driveway access.

(1)

Driveway design. See § 660-91C for size of driveway access.

(2)

Hierarchy of access point location. Unless otherwise expressly stated in the building type tables, the following applies to all building types:

(a)

C streets or alleys. Driveway access is allowed off any C street or improved alley.

(b)

Side street. Driveway access is allowed off any side street abutting any lot.

(c)

Front street. If no C street, improved alley, or side street abuts the lot, one driveway access point per lot is allowed off the front street except as follows:

[1]

Front street access is not allowed off Hamilton Street in MX-D and GX-D.

[2]

Front street access is not allowed in the N1, N2, and N3 Zones, except where front street access already exists for at least 50% of the properties on the street on the subject blockface.

[3]

Where significant topography or utility conflicts exist, as determined by the City Engineer, a special exception may be requested for front street access, except on Hamilton Street in MX-D and GX-D.

Minimum streetscape area. A minimum area between the street pavement and the lot line is required to ensure adequate pedestrian facilities are provided along all streets, including, at a minimum, sidewalks and street trees.

(1)

Applicability. The following applies when the total development (one or more lots) includes at least 100 feet of total contiguous street frontage.

(a)

Exceptions. The Zoning Officer may exempt a parcel from this requirement under the following circumstances:

[1]

Context. The majority of existing buildings on the remaining blockface, under separate ownership from the subject parcels, are located such that the additional setback area for the remainder of the block is not practicable.

[2]

Lot width. The developability of the lot would be significantly reduced, such as a corner lot 20 feet in width being reduced to less than 18 feet wide.

[3]

Lot depth. Lots less than 80 feet in depth are exempt.

[4]

C streets. Developments along C streets are exempt.

(2)

Minimum streetscape area. Where the area from the face of curb/edge of pavement to the lot line is less than nine feet, the build-to zone/setback must be measured from nine feet off the face of curb/edge of pavement.

(3)

Streetscape. The extended streetscape area must be treated with streetscape per § 350-13 of Chapter 350, Land Development and Subdivision.

(4)

Easement. A public easement may be required per the City Engineer where the sidewalk would be located on private property.

§ 660-19 Outdoor sites.

The following outdoor sites do not include a principal building. Outdoor sites are not required to conform to building type regulations except as defined in this section.

Parks and open space sites. Parks and open space uses per Table 660-4, including community gardens and urban agriculture, with no principal building on the site.

(1)

Principal buildings. When a principal building is located on a park and open space site, such as a community recreation facility or center, the building must meet the regulations of a building type allowed in the zone.

(2)

Accessory uses and structures are allowed per Article 6. On park and open space sites, outbuildings and accessory structures are allowed, accessory to the principal use, such as restroom pavilions, sheds, ticket booths, and other similar structures. All accessory structures must meet the following:

(a)

All accessory structures must be located a minimum of 30 feet from any lot line.

(b)

The total footprint of all accessory structures on the lot may not exceed 25% of the lot.

(c)

The maximum overall height of any accessory structure is 25 feet.

Surface parking sites. Sites where a surface parking lot is the principal use of the site per Table 660-4 and no permanent principal building is located on the site.

(1)

Kiosks. A kiosk is a small footprint structure with one or more openings used to vend tickets. Ticket kiosks are allowed on surface parking sites as accessory structures provided the following:

(a)

The kiosk must be located a minimum of 10 feet from any lot line.

(b)

No more than four kiosks may be located on any site and the total footprint of all kiosks may not exceed 400 square feet and 10% of the site.

(c)

The maximum overall height of the kiosk may not exceed 15 feet.

(2)

No accessory structures other than a kiosk are allowed.

Industrial and infrastructure sites.

(1)

Infrastructure sites. All infrastructure sites per Table 660-4 are allowed without a principal building.

(2)

Industrial sites. Outdoor industrial sites consisting only of outdoor equipment and supply storage with no permanent principal building are allowed per Table 660-4.

(a)

Outdoor storage and outbuilding accessory uses and structures are allowed on this site. Other accessory uses and structures are allowed per Article 6.

(b)

All accessory structures on industrial outdoor sites must meet the following:

[1]

All accessory structures must be located within the rear 50% of the lot, as measured from the front street lot line, and a minimum of 30 feet from any other lot line.

[2]

The total footprint of all accessory structures on the lot may cover no more than 25% of the lot.

[3]

The maximum overall height of any accessory structure is 25 feet.

(c)

All outdoor storage uses must meet the regulations for location and screening in § 660-51.

Manufactured (mobile) home park and tiny home villages. Any lot under single ownership that includes three or more manufactured/mobile homes (including tiny homes) for residential use is subject to the following:

(1)

Where allowed.

(a)

Manufactured/mobile home parks are allowed as a household living use in accordance with Table 660-4. They are also subject to all applicable supplemental regulations of § 660-36A.

(b)

Tiny home villages are allowed as temporary shelters in accordance with Table 660-4. They are also subject to supplemental regulations that apply to temporary shelters (see § 660-36D).

(2)

All of these regulations must be carefully evaluated to determine the viability of this use; an architect or engineer should be consulted. Zoning approval of this use does not constitute a blanket approval of this use with respect to all relevant federal, state, and local regulations.

(a)

Each newly placed manufactured mobile home shall comply with national Manufactured Home Construction and Safety Standards (24 CFR Part 3280).

(b)

Each newly placed tiny home shall comply with building codes and any other federal, state, and/or local regulations.

(3)

Lot size. The lot must be a minimum of two contiguous acres in size.

(4)

Density. Maximum density may not exceed five dwelling units per acre.

(5)

Dwelling unit size. Manufactured/mobile homes are subject to the minimum floor area requirements of Table 660-5. Tiny homes used as temporary shelters are subject to the alternative minimum floor area requirements of Table 660-6. Alternative minimum floor area must meet the requirements of the building code, property rehabilitation and maintenance code, and any other federal, state, and local regulations.

(6)

Anchored. Each dwelling unit shall be securely anchored to the ground to resist damage from high winds.

(7)

Base enclosure. The area from the base of each dwelling unit to the ground shall be surrounded by an enclosure that has the appearance of a foundation of a site-built home.

(8)

Perimeter landscape buffer. For any new or expanded manufactured home park or tiny home village, a landscaped area with a minimum width of 25 feet shall be maintained around the perimeter of subject site, which shall only be interrupted at approximate perpendicular vehicle or utility crossings. Such landscaped area shall not include any buildings.

(9)

Unit spacing and setbacks. Each mobile/manufactured home shall be set back a minimum of 20 feet from any other mobile/manufactured home and at least 35 feet from any exterior lot line. For twin mobile/manufactured homes, no side setback is required along the common or shared wall between abutting units.

(10)

Pavement. Interior roads and required parking spaces must comply with the surfacing standards of § 660-91G.

Food truck sites. Where food trucks are the principal use on the site, no principal building is required. The supplemental use regulations for food trucks in § 660-37F(3)(d), including but not limited to lot coverage and setbacks, apply.

§ 660-20 Storefront building.

Description and intent. With a variety of available scales depending on the zone, the storefront building type is intended for use in the downtown, along corridors, and at neighborhood nodes, accommodating shopping, services, and eating establishments in a building with uses mixed vertically. Oriented to the street with narrow or no side setbacks, this building type is highly accessible to the pedestrian. Ground story storefront glass, entrances along the sidewalk, and windows in upper stories facing the street make these buildings interesting and inviting to pedestrians. Parking, where provided, is located in the rear yard.

Illustrative images. The images shown in Figure 660-19(3) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Building regulations. The following tables and illustrations regulate this specific building type. See § 660-18 for general regulations for all building types. See Article 14 for definitions and measuring table regulations.

Link	Subsection
§ 660-20D	Building Siting
§ 660-20E	Parking and Accessory Structures
§ 660-20F	Number and Location of Dwelling Units
§ 660-20G	Height
§ 660-20H	Roofs
§ 660-20I	Front and Side-Street Facades
§ 660-20J	Supplemental Regulations

Building siting.

Figure 660-20(1) Storefront Building Siting

Building Siting. [See Figure 660-20(1).]
		Zones
		MX-D	MX-C	MX-N	MX-S	Additional/References
	Multiple Principal Buildings	Not allowed	Not allowed	Not allowed	Allowed	See § 660-18C for multiple buildings.
1	Lot Width	18 ft. min.	18 ft. min.	18 ft. min. 50 ft. max.	50 ft. min.
1	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Streetwall	90% min.	75% min.	75% min.	65% min.	See § 660-131F for measuring.
2	Front Streetwall	See front streetwall allowances for courtyard or plaza per § 660-20J(1)				See § 660-131F for measuring.
3	Front Build-to Zone	0 ft. min. 5 ft. max.	0 ft. min. 10 ft. max.	0 ft. min. 20 ft. max.	5 ft. min. 15 ft. max.	Minimum streetscape area required per § 660-18L. Double-frontage lots addressed per § 660-18J(5). See § 660-131G for measuring. See § 660-78 for required rear and side buffers.
4	Side-Street Build-to Zone	0 ft. min. 15 ft. max.	0 ft. min. 15 ft. max.	0 ft. min. 15 ft. max.	0 ft. min. 15 ft. max.
5	Side Setback	0 ft. min.	0 ft. min.	0 ft. min.	0 ft. min.
5	Side Setback	If any side setback is provided, at least 5 ft. is required.
6	Rear Setback	0 ft. min. 0 ft. min. at improved alley or C street; 20 ft. min. abutting another lot
7	Building Coverage	No limit	No limit	No limit	70% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-20(2) Storefront Building Parking Siting

Parking and Accessory Structures. [See Figure 660-20(2).]
		Zones
		MX-D	MX-C	MX-N	MX-S	Additional/References
8	Parking and Driveway Access	Driveway access is allowed per § 660-18K.			One driveway access is allowed per 120 ft. of any street frontage	See Article 9 for parking. See § 660-18I for loading.
9	Garage Setback within Building Vehicular Door Location	20 ft. min. behind front facade above any basement Rear facade only; if the rear facade is not practicable, the side-street facade may be approved, except along Hamilton Street in MX-D.				See § 660-131J for garage door setback.
10	Surface Parking Location	Rear yard	Rear yard	Rear yard	Rear, side yard	See § 660-77 for frontage buffer on C streets.
	Front and Side-Street Setback	No closer to lot line than principal building
	Side & Rear Setback	3 ft. min.; 0 ft. min. at improved alley			3 ft. min.
11	Accessory structure Location	Rear yard	Rear yard	Rear yard	Rear yard	See Article 6 for accessory structures.
	Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	5 ft. min.	5 ft. min.	5 ft. min.	5 ft. min.
KEY ACCESSORY STRUCTURES						See Article 6 for accessory structures and uses.
Outbuildings		•	•	•	•	KEY:
Drive-Through Facilities		—	—	—	•	•	=	Allowed
Fuel Pumps		—	—	—	•	○	=	Requires Special Exception
Outdoor Storage		—	—	—		—	=	Not Allowed
Parking Structure		•	•	—	•

Number and location of dwelling units.

Number and Location of Dwelling units. [Refer to § 660-131L.]
	Zones
	MX-D	MX-C	MX-N	MX-S	Additional/References
Principal Dwelling Units	No limit	No limit	Up to 6 units	No limit	See Article 5 for allowed uses.
Accessory Dwelling Units	—	—	—	—	See Article 5 for allowed uses.

Height.

Figure 660-20(3) Storefront Building Height and Roofs

Height. [See Figure 660-20(3).]
			Zones
			MX-D	MX-C	MX-N	MX-S	Additional/References
12	Height	Minimum	3 stories	2 stories	2 stories	2 stories
12	Height	Maximum	14 stories	3 stories	3 stories	3 stories
13	Additional Stories for Affordable Housing on mixed-use corridors		—	+2 stories per § 660-20J(2)	—	+2 stories per § 660-20J(2)	Mixed-Use Corridors defined in § 660-144. See § 660-20J(4) for required setbacks at N zones.
	Additional stories for affordable housing in other locations		—	+2 stories with special exception approval per § 660-20J(2)	—	+2 stories with special exception approval per § 660-20J(2)
	Additional height allowed by Floor-Area Ratio		See § 660-20J(3).	—	—	—
14	Ground story height		12 ft. min. 18 ft. max.	10 ft. min. 15 ft. max.	10 ft. min. 15 ft. max.	12 ft. min. 14 ft. max.	Measured floor-to-floor. See § 660-131.M for measuring height and allowances for taller spaces.
14	Ground story height				9 ft. min. with min. 18" stoop
15	Upper story height		9 ft. min. 14 ft. max.	9 ft. min. 11 ft. max.	9 ft. min. 11 ft. max.	9 ft. min. 14 ft. max.

Roofs.

Roofs. [See Figure 660-20(3).]
		Zones
		MX-D	MX-C	MX-N	MX-S	Additional/References
16	Allowed roof types	Flat, Parapet	Flat, Parapet, Pitched	Flat, Parapet, Pitched	Flat, Parapet, Pitched	See § 660-61 for roof types and towers
	Tower	Allowed	Allowed	Allowed	Allowed	See § 660-61 for roof types and towers

Front and side-street facades.

Figure 660-20(4) Storefront Building Facades

Front and Side-Street Facades. [See Figure 660-20(4).]
		Zones
		MX-D	MX-C	MX-N	MX-S	Additional/References
17	Ground story transparency on front facades	70% min.	60% min., except 15% for existing residential building fronting on N 7th Street	45% min.	70% min.	See § 660-131N for measuring transparency. Measured per story, includes any half stories, visible basement, or towers with full height stories.
		Measured between 2 ft. and 9 ft. from sidewalk grade
		No bay nor 20-ft.-wide section of any story may be without transparency
		Ground story transparency must extend min. 30 ft. around the corner down any side-street facades
18	Transparency: side-street facades and upper stories on front facade	20% min.	15% min.	15% min.	20% min.
18		No bay nor 20-ft.-wide section of any story may be without transparency
19	Building entrances	One principal entrance per every 45 feet of front facade				See § 660-131O for measuring building entrance location.
20	Allowed entrance types	Storefront	Storefront, Stoop	Storefront, Stoop	Storefront	See § 660-63 for entrance types.
21	Ground-floor elevation		Within 30 in. of sidewalk elevation			See § 660-63 for entrance types.
22	Horizontal divisions with shadow lines	Within 3 ft. of the top of ground story	Within 3 ft. of the top of any story between the basement and 3rd story			Horizontal shadow lines to run a min. 80% of length of facade.
23	Vertical Divisions with Shadow Lines	One per every 45 ft. of ground story front facade	One per every 30 ft. of ground story front facade			See § 660-150 for definition of shadow lines.

Supplemental storefront building regulations.

(1)

Front streetwall variation. Either a courtyard or an outdoor seating/dining area may count towards the streetwall requirement, provided the following regulations are met:

(a)

Courtyard. The courtyard must have a minimum of 30 feet in width and a minimum of 20 feet in depth, surrounded on 3 sides by occupied building facade.

[1]

The courtyard may count towards front streetwall when abutting the build-to zone.

[2]

One side of the courtyard may be defined by a landscape wall constructed of an allowed facade material.

[3]

Parking is not allowed in courtyards.

[4]

Courtyard facades must be treated as front facades per facade regulations for the building type and any design regulations in Article 7.

[5]

The courtyard must include special paving materials and patterns, and landscape materials such as trees in grates or planters and/or landscape beds.

[6]

Temporary or permanent seating is required. Temporary seating must be available or in place between May 15 and September 15.

(b)

Outdoor seating or dining plaza. A front or side-street build-to zone may be expanded up to 20 feet from the lot line for a maximum of 20% of the front street facade or 100% of the side-street facade to allow for a permanent outdoor seating plaza or outdoor dining area. For example, a build-to zone of between zero and five feet could be expanded to zero and 25 feet.

[1]

The seating/dining areas must be coordinated with the streetscape. Special paving materials and patterns, landscape materials such as trees in grates or planters and/or landscape beds must be included.

[2]

Temporary or permanent seating is required. Temporary seating must be available or in place between May 15 and September 15.

(2)

Additional stories for affordable housing. Where additional stories are allowed for affordable housing per § 660-20G, the following applies:

(a)

Affordable housing. The project must meet the definition of affordable housing per § 660-36A(3)(d) and any supplemental use regulations associated with affordable housing.

(b)

Mixed-use corridors. Except within an historic district, buildings on lots abutting one of the mixed-use corridors (per § 660-144) may include up to two additional stories for affordable housing on top of the allowed three stories for a total of up to five stories. See § 660-20J(4) for required setback at N zones.

(c)

Other locations. Except within an historic district, buildings on lots that do not abut one of the mixed-use corridors (per § 660-144) may request special exception approval to include up to two additional stories for affordable housing on top of the allowed height of three stories for a total of up to five stories. See § 660-20J(4) for required setback at N zones.

(3)

Floor area ratio (FAR) in Downtown Zone. In MX-D, additional height is allowed above the maximum height in stories as follows:

(a)

On lots less than 80 feet in width, no additional floor area is allowed above the allowed maximum height in stories.

(b)

On lots 80 feet or more in width, heights may be increased up to a total allowed floor-area-ratio for the building of no more than 24.

(c)

See § 660-67 for high-rise design standards.

(4)

Setback at N zones. Any allowed "additional story" per § 660-20J(2) must be set back in the rear from any adjacent N-zoned lot line a minimum of 40 feet, including any C street or improved alley within the setback area. For example, if the C street between the subject lot and adjacent N-zoned lot is 25 feet in width and the building is setback from the C street 15 feet, no additional story setback is required. See Figure 660-20(5).

Figure 660-20(5) Required Setback Additional Height Across From N Zone

§ 660-21 Commercial center.

Description and intent. The commercial center is a single building or collection of buildings accommodating both vehicular and pedestrian access comfortably. Some buildings must be built up to the sidewalk; however, additional buildings may be located set back from the front lot line. Vehicular uses, such as fueling stations and service stations, may be located within this building type, along with shopping centers and larger grocery stores.

Illustrative images. The images shown in Figure 660-21(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Building regulations.

The following tables and illustrations regulate this specific building type. See § 660-18 for general regulations for all building types. See Article 14 for definitions and measuring table regulations.

Link	Subsection
§ 660-21D	Building Siting
§ 660-21E	Parking and Accessory Structures
§ 660-21F	Number and Location of Dwelling Units
§ 660-21G	Height
§ 660-21H	Roofs
§ 660-21I	Front and Side-Street Facades
§ 660-21J	Supplemental Regulations

Building siting.

Figure 660-21(2) Commercial Center Building Siting

Building Siting. [See Figure 660-21(2).]
		Zones
		MX-S	Additional/References
	Multiple Principal Buildings	Allowed	See § 660-18C for multiple buildings.
1	Lot Width	60 ft. min.
1	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Streetwall	65% min.; See § 660-21J for locations where reduced minimum streetwall is allowed	Courtyards, outdoor dining, side parking allowances per § 660-21J. Measured in build-to zone along any street frontage per § 660-131F.
3	Front Build-to Zone	10 ft. min. 20 ft. max.	Minimum streetscape area required per_ § 660-18L.
4	Side-Street Setback	5 ft. min.	See § 660-131G for measuring.
5	Side Setback	5 ft. min., 10 ft. min. abutting any N zone	See § 660-78 for required rear and side buffers.
6	Rear Setback	5 ft. min.; 20 ft. min. abutting N zone
7	Building Coverage	60% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-21(3) Commercial Center Parking Siting

Parking and Accessory Structures. [See Figure 660-21(3).]
		Zones
		MX-S		Additional/References
8	Parking and driveway Access	One per 120 ft. of street frontage		See Article 9 for parking.
9	Garage Setback within Building Vehicular Door Location	20 ft. min. behind front facade above any basement Side-street, side, rear facade		See § 660-131J for garage door setback.
10	Surface Parking Location	Rear yard, interior yard, side yard		See § 660-156 for definition of yards.
	Front and Side-Street Setback	5 ft. min.; side yard parking may extend into the front yard to within up to 5 ft. from front lot line
	Side and Rear Setback	5 ft. min.
11	Accessory Structure Location	Rear yard		See Article 6 for accessory structures.
	Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	5 ft. min.; 15 ft. min. abutting to N zone
KEY ACCESSORY STRUCTURES
Outbuildings		•
Drive-Through Facilities		•		KEY:
Fuel Pumps		•	Allowed in rear or side yard	•	=	Allowed
Outdoor Storage		○		○	=	Requires Special Exception
Parking Structure		•		—	=	Not Allowed

Number and location of dwelling units.

Number and Location of Dwelling Units. (Refer to § 660-131L.)
	Zones
	MX-S	Additional/References
Principal Dwelling Units	No limit	See Article 5 for allowed uses.
Accessory Dwelling Units	—	See Article 5 for allowed uses.

Height.

Figure 660-21(4) Commercial Center Height and Roofs

Height. [See Figure 660-21(4).]
		ZONES
		MX-S	Additional/References
12	Height	1 story min. 3 stories max.	See § 660-21J for additional height for large format spaces. Stories are measured floor-to-floor. See § 660-131M for measuring height and allowances for taller spaces.
13	Ground Story Height	10 ft. min., 15 ft. max. for multi-story building; additional height for large format spaces per § 660-21J
13	Ground Story Height	14 ft. min., 18 ft. max. for single-story building
14	Upper Story Height	9 ft. min. 12 ft. max.

Roofs.

Roofs. [See Figure 660-21(4).]
		Zones
		MX-S	Additional/References
15	Allowed Roof Types	Flat, Parapet, Pitched	See § 660-61 for roof types and towers. See § 660-21J for pitched roof on single-story building.
	Tower	Allowed

Front and side-street facades.

Figure 660-21(5) Commercial Center Facades

Front and Side-Street Facades. [See Figure 660-21(5).]
		Zones
		MX-S	Additional/References
16	Ground Story Transparency on Front Facades	65% min.	Ground story transparency measured between 2 ft. and 10 ft. from sidewalk grade. See § 660-131N for measuring transparency.
		No bay nor 20-ft.-wide section of any story may be without transparency
		Ground story transparency must extend a min. 30 ft. around the corner, down any side-street facades
17	Transparency: Street Facades	18% min.	Measured per story, includes any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
17	Transparency: Street Facades	No bay nor 20-ft.-wide section of any story may be without transparency
18	Building Entrance Location	One per every 65 feet of front facade and interior-yard parking lot front-facing facades	See § 660-131O for measuring building entrance location.
19	Allowed Entrance Types	Storefront	See § 660-63 for entrance types.
20	Ground-Floor Elevation	Within 24 in. of sidewalk elevation	See § 660-63 for entrance types.
21	Horizontal Divisions with Shadow Lines	Within 3 ft. of the top of ground story	Horizontal shadow lines to run a min. 80% of length of facade. See § 660-150 for definition of shadow lines.
22	Vertical Divisions with Shadow Lines	One per every 65 ft. of ground story front street facade

Supplemental commercial center regulations.

(1)

Front streetwall variation. Either a courtyard or an outdoor seating/dining area may count towards the streetwall requirement, provided the following regulations are met:

(a)

Courtyard. The courtyard must have a minimum of 30 feet in width and a minimum of 20 feet in depth, surrounded on three sides by occupied building facade.

[1]

The courtyard may count towards front streetwall when abutting the build-to zone.

[2]

One side of the courtyard may be defined by a landscape wall.

[3]

Parking is not allowed in courtyards.

[4]

Courtyard facades must be treated as front facades per facade regulations for the building type and any design regulations in Article 7.

[5]

The courtyard must include special paving materials and patterns, and landscape materials such as trees in grates or planters and/or landscape beds.

[6]

Temporary or permanent seating is required. Temporary seating must be available or in place between May 15 and September 15.

(b)

[1]

[2]

Temporary or permanent seating is required. Temporary seating must be available or in place between May 15 and September 15.

(2)

Reduced front streetwall. The minimum streetwall may be reduced under the following circumstances:

(a)

Street frontages. Where the front lot line is parallel to one of the following streets outside of the traditional City center, a minimum streetwall of 35% is allowed:

[1]

Union Boulevard, west of Jasper Street;

[2]

Airport Road;

[3]

Hamilton Boulevard west of College Drive;

[4]

Tilghman Street west of Cedar Crest Boulevard;

[5]

S 4th Street;

[6]

Lehigh Street south of W Tioga Street;

[7]

Glenwood Street SW;

[8]

W Emaus Avenue;

[9]

Industrial Avenue; and

[10]

31st Street SW.

(b)

Fueling stations. Where fueling stations are located outside the street frontages defined in Subsection 3(2)(a), a minimum streetwall of 35% is allowed.

(3)

Large-format spaces. Large-format spaces have taller floor-to-floor heights, large building footprints, and few or no windows. Examples include such stores as grocery stores, department stores, warehouse retail stores, and movie theaters. Large-format spaces are allowed in a commercial center per the following:

(a)

A ground story up to 30 feet in height is allowed for the large format space.

(b)

The facade of the large format space is limited to a maximum horizontal distance along any front street of 60 feet. See Figure 660-21(6).

Figure 660-21(6) Large-Format Space

(c)

Lower scaled commercial spaces meeting the building type requirements may front the large-format space to achieve the maximum frontage and number of entrances required along the frontage.

(d)

Any heights over 18 feet located on the front facade or side-street facade must apply transparency regulations as if the building is two stories along those facades.

(4)

Pitched roof on single-story building. A pitched roof on a single-story building must have a minimum pitch of 1:5. Where the ridge is parallel to a street, dormer windows must be provided, one, minimum six feet wide, for every 30 feet of roof length. See Figure 660-21(7).

Figure 660-21(7) Pitched Roof on Single Story Commercial Center

§ 660-22 General building.

Description and intent. The general building is an urban building, typically housing multiple residential units, offices, laboratory spaces, classrooms, and similar spaces. Oriented to the street with an entrance to the public sidewalk, the building outside of downtown is surrounded by small yards. Parking is located in the rear yard with attached garages entered from the rear of the building. Buildings vary in length and height depending on the zone.

Illustrative images. The images shown in Figure 660-22(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-22D	Building Siting
§ 660-22E	Parking and Accessory Structures
§ 660-22F	Number and Location of Dwelling Units
§ 660-22G	Height
§ 660-22H	Roofs
§ 660-22I	Front and Side-Street Facades
§ 660-22J	Supplemental Regulations

Building siting.

Figure 660-22(2) General Building Siting

Building Siting. [See Figure 660-22(2).]
		Zones
		GX-D	GX-C, NX, P2	IX, IG, IM	Additional/References
	Multiple Principal Buildings	Not allowed	Allowed	Allowed	See § 660-18C for multiple buildings.
1	Lot Width	45 ft. min.	30 ft. min.	IX: 40 ft. min. IG, IM: 80 ft. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Streetwall	90% min.	80% min.	80% min.	See front streetwall allowances for courtyard or plaza per § 660-22J(1) Measured in build-to zone along the street frontage per § 660-131F.
3	Front Build-to Zone	0 ft. min. 15 ft. max.	5 ft. min. 25 ft. max.	5 ft. min. 25 ft. max.	Minimum streetscape area required per § 660-18L. See § 660-131G for measuring.
4	Side-Street Build-to Zone	0 ft. min. 15 ft. max.	5 ft. min. 25 ft. max.	5 ft. min. 25 ft. max.
5	Side Setback	0 ft. min.; if any is provided, at least 5 ft. required	5 ft. min.	5 ft. min.
5	Space between Buildings on Lot	—	10 ft. min.	10 ft. min.
6	Rear Setback	0 ft. min.	5 ft. min. at improved alley or C street, 20 ft. min. abutting another lot	5 ft. min. at improved alley or C street, 20 ft. min. abutting another lot	See § 660-22J(4) for treatment adjacent to N zones.
7	Building Coverage	No limit	70% max.	70% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-22(3) General Building Parking Siting

Parking and Accessory Structures. [See Figure 660-22(3).]
			Zones
			GX-D		GX-C, NX, P2	IX, IG, IM	Additional/References
8	Parking and Driveway Access		Driveway access is allowed per § 660-18K				See Article 9 for parking.
9	Garage Setback within Building		20 ft. min. behind front facade above basement				See § 660-131J for garage door setback.
10	Allowed Garage Door Location		Side-street, side, rear facade				See § 660-131J for garage door setback.
11	Surface Parking Location		Rear yard		Rear yard, limited side yard	Rear yard, side yard	See § 660-131K for allowed limited sideyard parking layout.
	Front and Side-Street Setback		No closer to lot line than principal building
	Side and Rear Setback		3 ft. min.; 0 ft. min. at improved alley		3 ft. min.; 0 ft. min. at improved alley	3 ft. min.
12	Accessory Structure Location		Rear yard		Rear yard	Rear yard	See Article 6 for accessory structures and uses.
	Side-Street Setback		No closer to lot line than principal building
	Side and Rear Setback		5 ft. min.		5 ft. min.	5 ft. min.
KEY ACCESSORY STRUCTURES							KEY:
Outbuildings		•		•		•	•	=	Allowed
Drive-Through Facilities		—		—		•	○	=	Requires Special Exception
Fuel Pumps		—		—		•
Outdoor Storage		—		—		•	—	=	Not Allowed
Parking Structure		•		•		•

Number and location of dwelling units.


	Zones
	GX-D	GX-C, NX, P2	IX, IG, IM	Additional/References
Principal Dwelling Units	No limit	GX-C & NX: No Limit P2: —	—	See Article 5 for allowed uses.
Accessory Dwelling Units	—	—	—	See Article 5 for allowed uses.

Height.

Figure 660-22(4) General Building Height and Roofs

Height. [See Figure 660-22(4).]
		Zones
		GX-D	GX-C, NX, P2	IX, IG, IM	Additional/References
13	Height	3 stories min. 14 stories max.	2 stories min. 4.5 stories max.	No min. 5.5 stories max.	See § 660-131M for measuring height and allowances for taller spaces.
14	Additional Stories for Affordable Housing on Mixed-Use Corridors	—	+2 stories allowed per § 660-22J(2)	—
	Additional Stories for Affordable Housing in Other Locations	—	+2 stories with special exception approval per § 660-22J(2)	—	See § 660-144 for definition of Mixed-Use Corridors.
	Additional Height Allowed by Floor-Area Ratio	See § 660-22J(3)	—	—	See § 660-22J(4) for required setbacks at N zones.
15	All Stories Height	10 ft. min. 18 ft. max.	10 ft. min. 16 ft. max.	10 ft. min. 18 ft. max.	Measured floor-to-floor.

Roofs.

Roofs. See [Figure 660-22(4).]
		Zones
		GX-D	GX-C, NX, P2	IX, IG, IM	Additional/References
16	Allowed Roof Types	Flat, Parapet	Flat, Parapet	Flat, Parapet	See § 660-61 for roof types and towers.
	Tower	Allowed	Allowed	Allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-22(5) General Building Facades

Front and Side-Street Facades. [Figure 660-22(5)]
		Zones
		GX-D	GX-C, NX, P2	IX, IG, IM	Additional/References
17	Transparency: Front Facades	20% min.	20% min.	20% min.	Measured per story, includes any half stories, visible basements, or towers with full floor height. See § 660-131N for measuring transparency.
	Side-Street Facades	15% min.	15% min.	15% min.
		No bay nor 20-ft.-wide section of any story may be without transparency
18	Building Entrances Location	One per every 120 ft. of front facade	One per every 150 ft. of front facade	One per every 150 ft. of front facade	See § 660-131O for measuring building entrance location.
19	Allowed Entrance Types	Stoop, Storefront	Stoop, Storefront	Stoop	See § 660-63 for entrance types. See § 660-133 for definition of visible basement.
20	Ground-Floor Elevation	Between 0 in. and 30 in. above grade or between 30 in. and 48 in. with a visible basement
21	Horizontal Divisions with Shadow Lines	Min. one within 3 ft. of the top of any story between the basement and 3rd story			Horizontal shadow lines to run a min. 80% of length of facade. See § 660-150 for definition of shadow lines.
22	Vertical Divisions with Shadow Lines	One per every 120 ft. of street facade	One per every 150 ft. of street facade	One per every 150 ft. of street facade

Supplemental general building regulations.

(1)

Front streetwall variation. Either a courtyard or an outdoor seating/dining area may count towards the streetwall requirement, provided the following regulations are met:

(a)

Courtyard. The courtyard must have a minimum of 30 feet in width and a minimum of 20 feet in depth, surrounded on three sides by occupied building facade.

[1]

The courtyard may count towards front streetwall when abutting the build-to zone.

[2]

One side of the courtyard may be defined by a landscape wall.

[3]

Parking is not allowed in courtyards.

[4]

A U-shaped drop-off drive within the courtyard may be approved, provided the following are met:

[a]

The courtyard can accommodate the turning radii required by the City Engineer.

[b]

Separate pedestrian facilities are provided from the public sidewalk to the building entrance.

[c]

The remaining areas of the courtyard are generally landscaped. Courtyard facades must be treated as front facades per facade regulations for the building type and any design regulations in Article 7.

[5]

The courtyard must include special paving materials and patterns, and landscape materials such as trees in grates or planters and/or landscape beds.

[6]

Temporary or permanent seating is required. Temporary seating must be available or in place between May 15 and September 15.

(b)

[1]

[2]

Temporary or permanent seating is required. Temporary seating must be available or in place between May 15 and September 15.

(2)

Additional stories for affordable housing. Where additional stories are allowed for affordable housing per § 660-22G, the following applies:

(a)

Affordable housing. The project must meet the definition of affordable housing per § 660-36A(3)(d) and any supplemental use regulations associated with affordable housing.

(b)

Mixed-use corridors. Except with an historic district, buildings on lots abutting one of the mixed-use corridors (per § 660-144) may include up to two additional stories for affordable housing in addition to the allowed 4.5 stories for a total of up to 6.5 stories. See § 660-22J(4) for required setback at N zones.

(c)

Other locations. Except within an historic district, buildings on lots that do not abut one of the mixed-use corridors (per § 660-144) may request special exception approval to include up to two additional stories of affordable housing in addition to the allowed 4.5 stories for a total of up to 6.5 stories. See § 660-22J(4) for required setback at N zones.

(3)

Floor area ratio (FAR) in Downtown Zone. In GX-D, additional height is allowed above the maximum height in stories as follows:

(a)

On lots less than 80 feet in width, no additional floor area is allowed above the allowed maximum height in stories.

(b)

On lots 80 feet or more in width, heights may be increased up to a total allowed floor-area-ratio for the building of no more than 24.

(c)

See § 660-67 for high-rise design standards.

(4)

Setback at N Zones. Any allowed "additional story" per § 660-22J(2) must be set back in the rear from any adjacent N-zoned lot line a minimum of 40 feet, including any C street or improved alley within the setback area. For example, if the C street between the subject lot and adjacent N-zoned lot is 25 feet in width and the building is setback from the C street 15 feet, no additional story setback is required. See Figure 660-20(5).

§ 660-23 Small general building.

Description and intent. The small general building is a basic urban building, typically housing multiple residential units, office, laboratory spaces, classrooms, services, and similar spaces. Oriented to the street with an entrance to the public sidewalk, the building often has a small front setback. The scale of the building is smaller than the general building, lower in height and limited in width. Parking is located in the rear yard.

Illustrative images. The images shown in Figure 660-23(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-23D	Building Siting
§ 660-23E	Parking and Accessory Structures
§ 660-23F	Number and Location of Dwelling Units
§ 660-23G	Height
§ 660-23H	Roofs
§ 660-23I	Front and Side-Street Facades
§ 660-23J	Supplemental Regulations

Building siting.

Figure 660-23(2) Small General Building Siting

Building Siting. [See Figure 660-23(2).]
		Zones
		GX-C, GX-N, NX	N1, N2	N3	Additional/References
	Allowed per Table 660-3	Allowed	Allowed only with special exception approval	Allowed
	Multiple Principal Buildings	Not allowed	Not allowed	Allowed per § 660-23J
1	Lot Width	18 ft. min.	36 ft. min.	65 ft. min. on corner lot of A or B street; 80 ft. min. on interior lot
1	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Streetwall	65 ft. max., not including any courtyard	50 ft. max.	65 ft. max., not including any courtyard	Measured in build-to zone along any street frontage per § 660-131F.
3	Front Build-to Zone	5 ft. min. 20 ft. max.	0 ft. min. 15 ft. max.	15 ft. min. 35 ft. max.	See § 660-131G for measuring and front-yard averaging. Minimum streetscape area required per § 660-18.L.
3	Front Build-to Zone	—	—	Front-yard averaging applies
4	Side-Street Build-to Zone	5 ft. min. 15 ft. max.	0 ft. min. 15 ft. max.	7.5 ft. min. 15 ft. max.
5	Side Setback	0 ft. min; if any provided, at least 5 ft. required	0 ft. min; if any provided, at least 5 ft. required	5 ft. min.
6	Rear Setback	5 ft. min. at improved alley or C street; 20 ft. min. abutting another lot	15 ft. min.; 0 ft. min. on corner lot bounded by A, B, & C streets	30 ft. min.
7	Building Coverage	70% max.	70% max.	60% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-23(3) Small General Building Parking Siting

Parking and Accessory Structures. [See Figure 660-23(3).]
		Zones
		GX-C, GX-N, NX	N1, N2	N3	Additional/References
8	Parking and Driveway Access	Driveway access is allowed per § 660-18K.			See Article 9 for parking.
9	Attached Garage Setback Allowed Garage Door Location	20 ft. min. behind front facade Side-street, rear facades			See § 660-131J for garage door setback.
10	Surface Parking Location	Rear yard; limited side yard	Rear yard	Rear yard	See § 660-131K for allowed limited side-yard parking layout.
	Front and Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.; 0 ft. min. at improved alley	3 ft. min.	3 ft. min.; 0 ft. min. at improved alley
11	Accessory Structure Location	Rear yard	Rear yard	Rear yard	See Article 6 for accessory structures.
	Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	5 ft. min.	5 ft. min.	5 ft. min.
KEY ACCESSORY STRUCTURES					KEY:
Outbuildings (includes Detached Garages)		•	•	•	•	=	Allowed
Drive-Through Facilities		—	—	—	•	=	Allowed
Fuel Pumps		—	—	—	○	=	Requires Special Exception
Outdoor Storage		—	—	—	—	=	Not Allowed
Parking Structure		—	—	—	—	=	Not Allowed

Number and location of dwelling units.


	Zones
	GX-C, GX-N, NX	N1, N2	N3	Additional/References
Principal Dwelling Units	Up to 3 units allowed per every 18 ft. of front facade width; Up to 12 units allowed with special exception approval.		Up to 1 unit allowed per every 18 ft. of front facade width per building; Up to 6 units allowed with special exception	See Article 5 for allowed uses. See § 660-131L for measuring.
Accessory Dwelling Units	Not allowed	Not allowed	Not allowed

Height.

Figure 660-23(4) Small General Building Height and Roofs

Height. [See Figure 660-23(4).]
		Zones
		GX-C, GX-N, NX	N1, N2	N3	Additional/References
12	Height	2 stories min. 3 stories max.	2 stories min. 3.5 stories max.	2 stories min. 3 stories max.	See § 660-131M for measuring height.
13	Story Height	9-12 ft.	9-11 ft.	9-11 ft.	Measured floor-to-floor.

Roofs.

Roofs. [See Figure § 660-23(4).]
		Zones
		GX-C, GX-N, NX	N1, N2	N3	Additional/References
14	Allowed Roof Types	Flat, Parapet	Flat, Parapet	Flat, Parapet, Pitched	See § 660-61 for roof types and towers.
	Tower	Not allowed	Not allowed	Not allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-23(5) Small General Building Facades

Front and Side-Street Facades. [Figure 660-23(5).]
		Zones
		GX-C, GX-N, NX	N1, N2	N3	Additional/References
15	Transparency: Front and Side-Street Facades	20% min.	20% min.	20% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
15		No bay nor 10-ft.-wide section of any story may be without transparency
16	Building Entrance Location	Front facade	Front facade	Front facade
17	Allowed Entrance Types	Stoop	Stoop	Stoop	See § 660-63 for entrance types.
18	Ground-Floor Elevation	Between 0 and 30 in. above grade or between 30 in. and 48 in, with a visible basement			See § 660-133 for definition of visible basement.
19	Horizontal Divisions with Shadow Lines	Minimum of one within 3 ft. of the top of any story between the basement and 1st story			Horizontal shadow lines to run a min. 80% of length of facade.
	Vertical Divisions with Shadow Lines	—	—	—	See § 660-150 for definition of shadow lines.

Supplemental small general building regulations.

(1)

Multiple small general buildings on a lot. Multiple principal Small General buildings may be located on a lot, consistent with the following:

(a)

All buildings must be submitted and developed at the same time.

(b)

Each building must be located within the front build-to zone and must fulfill all of the requirements of the building type unless otherwise expressly stated.

(c)

Minimum spacing between buildings is 10 feet.

(d)

An alternative layout may be approved as a special exception per § 660-115.

§ 660-24 Town Rowhouse.

Description and intent. Town rowhouses are vertical units that may share side walls with one or two other units on separate abutting lots. Each unit is oriented to an A or B street, with an entrance usually from a porch accessed directly off the front sidewalk. Parking is typically located in the rear yard or in an accessory garage structure. Roofs vary in type with a half story often located within the roof structure.

Illustrative images. The images shown in Figure 660-24(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Building regulations. The following tables and illustrations regulate this specific building type and apply to each rowhouse. See § 660-18 for general regulations for all building types. See Article 14 for definitions and measuring table regulations.

Link	Subsection
§ 660-24D	Building Siting
§ 660-24E	Parking and Accessory Structures
§ 660-24F	Number and Location of Dwelling Units
§ 660-24G	Height
§ 660-24H	Roofs
§ 660-24I	Front and Side-Street Facades
§ 660-24J	Supplemental Regulations

Building siting.

Figure 660-24(2) Town Rowhouse Siting

Building Siting. [See Figure 660-24(2).]
		Zones
		GX-C	GX-N, N2	Additional/References
	Multiple Principal Rowhouses	Allowed	Not allowed	See § 660-24J(2) for multiple buildings on a lot.
1	Lot Width: Interior Rowhouse	18 ft. min.	15 ft. min.
	End Rowhouse	20 ft. min.	18 ft. min.
	Lot Size	1,500 s.f. min.	1,500 s.f. min.
	Lot Frontage	A or B street, or two C streets (one at the front and one at the rear). See § 660-18J for front street designation regulations.
2	Front Streetwall	25 ft. max. width per rowhouse	Measured in build-to zone along any front lot line per § 660-131F.
3	Front Build-to Zone	10 ft. min. 20 ft. max.	10 ft. min. 20 ft. max.	See § 660-131G for measuring and front-yard averaging. Minimum streetscape area required per § 660-18L. See § 660-24J(1) for additional porch regulations.
3		—	Front-yard averaging applies
4	Front Porch, Enclosed Porch Setback	5 ft. min.	5 ft. min.
5	Side-Street Setback	10 ft. min.	0 ft. min.
6	Side Setback	0 ft.; If any setback provided, at least 4 ft. required	0 ft.; If any setback provided, at least 4 ft. required
7	Rear Setback	20 ft. min.	35 ft. min.; 15 ft. min. for lots less than 100 ft. deep without detached outbuilding or garage
8	Rear Yard Landscape Area	—	15 ft. min. depth, 150 s.f. min. area.
9	Building Coverage	70% max.	70% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-24(3) Town Rowhouse Parking Siting

Parking and Accessory Structures. [See Figure 660-24(3).]
		Zones
		GX-C	GX-N, N2	Additional/References
10	Parking and Driveway Access	Driveway access is allowed per § 660-18K.		See Article 9 for parking.
	Attached Garage Setback	Attached garage not allowed
	Allowed Garage Door Location (facade)	—
11	Surface Parking and Accessory Structure Location	Rear yard	Rear yard	See Article 6 for accessory structures.
12	Side-Street Setback	No closer to lot line than principal building
13	Side Setback Rear Setback	5 ft. min. total both sides 3 ft. min.; 0 ft. min. at improved alley for surface parking	5 ft. min. total both sides 3 ft. min.; 0 ft. min. at improved alley for surface parking
MAJOR ACCESSORY STRUCTURES				KEY:
Outbuildings (includes Detached Garages)		•	•	•	=	Allowed
Drive-Through Facilities		—	—	○	=	Requires Special Exception
Fuel Pumps		—	—	—	=	Not Allowed
Outdoor Storage		—	—
Parking Structure		—	—

Number and location of dwelling units.

Number and Location of Dwelling Units. (Refer to § 660-131L.)
	Zones
	GX-C	GX-N, N2	Additional/References
Principal Dwelling Units	1 in principal building	1 in principal building	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements.
Accessory Dwelling Units	1 in principal building	1 in principal building

Height.

Figure 660-24(4) Town Rowhouse Height and Roofs

Height. [See Figure 660-24(4).]
		Zones
		GX-C	GX-N, N2	Additional/References
14	Height	2 stories min. 3 stories max.	2 stories min. 3 stories max.	See § 660-131M for measuring height.
15	Floor-to-Floor Height	9.5 ft. min. 11 ft. max.	9.5 ft. min. 11 ft. max.	Measured floor-to-floor.
16	Height to Eaves for Pitched Roofs	20 ft. max.	20 ft. max.	Height to eaves is measured from the first floor to the bottom of the eave. See § 660-131M for measuring height to eaves.

Roofs.

Roofs. [See Figure 660-24(4).]
		Zones
		GX-C	GX-N, N2	Additional/References
17	Allowed Roof Types	Pitched, Flat, Parapet	Pitched, Flat, Parapet	See § 660-61 for roof types and towers.
		Dormers required on front facade of any Pitched roof with ridge parallel to street
	Tower	Not allowed	Allowed only on corners of buildings at street intersections

Front and side-street facades.

Figure 660-24(5) Town Rowhouse Facades

Front and Side-Street Facades. [See Figure 660-24(5)]
		Zones
		GX-C	GX-N, N2	Additional/References
18	Transparency: Front Facades Side Facades	25% min. 15% min.	25% min. 15% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
18	Transparency: Front Facades Side Facades	On the front facade, no bay nor 10-ft.-wide section of any story may be without transparency
19	Entrance Location	Front facade	Front facade
20	Allowed Entrance Types	Porch, Enclosed Porch, or Stoop	Porch, Enclosed Porch	See § 660-63 for entrance types. See § 660-24J for additional porch regulations.
21	Ground-Floor Elevation	Between 12 in. and 30 in. above grade or between 30 in. and 48 in. with a visible basement		See § 660-131M for measuring elevation of ground floor.
	Horizontal Divisions with Shadow Lines	—		See § 660-150 for definition of shadow lines.
	Vertical Divisions with Shadow Lines	—		See § 660-150 for definition of shadow lines.

Supplemental town rowhouse regulations.

(1)

Porch, enclosed porch in front yards. Porches and enclosed porches allowed within the front yard porch setback area per § 660-24D, 4, must meet the following:

(a)

Height. Porches and enclosed porches located in the front yard may be no taller than one story.

(b)

Porch. See § 660-63C for porch and enclosed porch regulations.

(c)

Size. Porches must be at least half as wide as the front facade, meeting the minimum porch entrance type regulations.

(d)

Other allowed encroachments. See § 660-131G. for other allowed encroachments into setbacks or build-to zones.

(2)

Multiple rowhouses on one lot. Multiple rowhouses may be located on a single lot provided the following:

(a)

Each rowhouse must meet all of the regulations as if each is located on a single lot, including front build-to zones located abutting a street lot line.

(b)

Any interior side yards between multiple, connected rowhouse buildings must be at least eight feet in width.

(c)

Surface parking may be located in a rear or interior yard.

§ 660-25 Urban rowhouse.

Description and intent. Urban rowhouses are vertical units that may share side walls with one or two other units on separate abutting lots. Each unit is oriented to an A or B street, with an entrance from a stoop directly off the sidewalk or street. Parking is located in the rear yard and any garage access is from a rear facade.

Illustrative images. The images shown in Figure 660-25(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-25D	Building Siting
§ 660-25E	Parking and Accessory Structures
§ 660-25F	Number and Location of Dwelling Units
§ 660-25G	Height
§ 660-25H	Roofs
§ 660-25I	Front and Side-Street Facades
§ 660-25J	Supplemental Regulations

Building siting.

Figure 660-25(2) Urban Rowhouse Siting

Building Siting. [See Figure 660-25(2).]
		Zones
		GX-N, N1	Additional/References
	Multiple Principal Buildings	Not allowed
1	Lot Width: Interior Unit End Unit Lot Size	16 ft. min. 18 ft. min. 1,500 s.f. min.
	Lot Frontage	A or B street, or two C streets (one at the front and one at the rear). See § 660-18J for front street designation regulations.
2	Front Streetwall	25 ft. max. width per rowhouse	Measured in build-to zone along any street frontage per § 660-131F.
3	Front Build-to Zone	0 ft. min. 8 ft. max	See § 660-131G for measuring and front-yard averaging. Minimum streetscape area required per § 660-18L.
3		Front-yard averaging applies
4	Side-Street Build-to Zone	0 ft. min. 20 ft. max.
5	Side Setback	0 ft; if any setback provided, at least 4 ft. required.
6	Rear Setback	35 ft. min.; 15 ft. min. for lots less than 100 ft. deep without detached outbuilding or garage
7	Rear Yard Landscape Area	15 ft. min. depth, 150 s.f. min. area.
8	Building Coverage	70% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-25(3) Urban Rowhouse Parking Siting

Parking and Accessory Structures. [See Figure 660-25(3).]
		Zones
		GX-N, N1	Additional/References
9	Parking and Driveway Access	Driveway access is allowed per § 660-18K.	See Article 9 for parking.
	Attached Garage Setback Allowed Garage Door Location (facade)	Attached garage not allowed —
10	Surface Parking and Accessory Structure Location	Rear yard	See Article 6 for accessory structures.
11	Street-Side Setback	No closer to lot line than principal building
12	Side Setback Rear Setback	5 ft. min. total both sides 3 ft. min.; 0 ft. min. at improved alley for surface parking
KEY ACCESSORY STRUCTURES			KEY:
Outbuildings (includes Detached Garages)		•	•	=	Allowed
Drive-Through Facilities		—	○	=	Requires Special Exception
Fuel Pumps		—	—	=	Not Allowed
Outdoor Storage		—
Parking Structure		—

Number and location of dwelling units.

Number and Location of Dwelling Units. (Refer to § 660-131L.)
		Zones
		GX-N, N1	Additional/References
	Principal Dwelling Units	1 in principal building	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements.
	Accessory Dwelling Units	1 in principal building

Height.

Figure 660-25(4) Urban Rowhouse Height and Roofs

Height. [See Figure 660-25(4).]
		Zones
		GX-N, N1	Additional/References
13	Height	1.5 stories min. 2.5 stories max. with Pitched Roof or 3 stories max with Flat or Parapet Roof Type	See supplemental regulations on half stories in § 660-25J. See § 660-131M for measuring height.
14	Floor-to-Floor Height	9.5 ft. min. 11 ft. max.	Measured floor-to-floor.
15	Height to Eaves for Pitched Roofs	20 ft. max.	Height to eaves is measured from the first floor to the bottom of the eave. See § 660-131M for measuring height to eaves.

Roofs.

Roofs. [See Figure 660-25(4).]
		Zones
		GX-N, N1	Additional/References
16	Allowed Roof Types	Pitched with ridge parallel to front lot line; Parapet, Flat	See § 660-61 for roof types and towers.
16	Tower	Not allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-25(5) Urban Rowhouse Facades

Front and Side-Street Facades. [See Figure 660-25(5).]
		Zones
		GX-N, N1	Additional/References
17	Transparency: Front Facades Side Facades	15% min. 10% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
17	Transparency: Front Facades Side Facades	On the front facade, no bay nor 10-ft.-wide section of any story may be without transparency
18	Entrance Location	Front or side-street facade
19	Allowed Entrance Types	Stoop, Porch	See § 660-63 for entrance types.
20	Ground-Floor Elevation	Between 12 in. and 30 in. above grade	See § 660-63 for entrance types.
	Horizontal Divisions with Shadow Lines	—	See § 660-150 for definition of shadow lines.
	Vertical Divisions with Shadow Lines	—	See § 660-150 for definition of shadow lines.

Supplemental urban rowhouse regulations.

(1)

Half stories in roof. See § 660-131M(8) for definition of half story.

(a)

The occupiable footprint of half stories in the roof is limited to no more than 65% of the footprint of story below.

(b)

Dormers on half stories are limited to no more than 50% of the facade length of the story below.

§ 660-26 Lane rowhouse.

Description and intent. Lane rowhouses are vertical, houses that may share side walls with other units on a separate lot, and that generally front on one C street with no other street access. Each lane rowhouse is oriented to the C street with an entrance and windows. Parking is often located off-site or to the side or rear of the unit.

Illustrative images. The images shown in Figure 660-26(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-26D	Building Siting
§ 660-26E	Parking and Accessory Structures
§ 660-26F	Number and Location of Dwelling Units
§ 660-26G	Height
§ 660-26H	Roofs
§ 660-26I	Front and Side-Street Facades
§ 660-26J	Supplemental Regulations

Building siting.

Figure 660-26(2) Lane Rowhouse Siting

Building Siting. [See Figure 660-26(2).]
		Zone
		N1, N2	Additional/References
	Lane rowhouse lots must exist on the day before the effective date specified in § 660-1C in order to utilize these regulations. New lane rowhouses may be constructed only on existing lots meeting these regulations.
	Multiple Principal Buildings	Not allowed
1	Lot Width Lot Size	14 ft. min. 600 s.f. min.
2	Lot Frontage	On lots fronting on a C street with no other street access or at a corner of a C street with a C street only. See § 660-18J for front street designation regulations.
		With special exception approval, the lane rowhouse regulations may be approved for use on a lot fronting an A or B street or on the corner of an A or B street at a C street, provided the lot existed on the day before the effective date specified in § 660-1C, is no larger than 800 s.f., and has a width of no more than 20 ft.
3	Front Build-to Zone	0 ft. min. 10 ft. max.	See § 660-131G for front-yard averaging. Minimum streetscape area per § 660-18L is not required on C streets.
3	Front Build-to Zone	Front-yard averaging applies
4	Side-Street Setback	0 ft. min.
5	Side Setback	0 ft; if any setback provided, at least 4 ft. required
6	Rear Setback	10 ft. min.
7	Building Coverage	85% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-26(3) Lane Rowhouse Parking Siting

Parking and Accessory Structures. [See Figure 660-26(3).]
		Zone
		N1, N2	Additional/References
8	Parking and Driveway Access	Driveway access is allowed per § 660-18K; max. 12 ft. width at lot line	See Article 9 for parking.
9	Attached Garage Setback Allowed Garage Door Location (facade)	Rear of building; min. 15 ft. behind front facade Side-street, side, rear facade	See § 660-131J for garage door setback.
10	Surface Parking and Accessory Structure Location	Street-side (C street at a C street only), side, rear yard	See Article 6 for accessory structures.
	Street-Side Setback	No closer to lot line than principal building
	Side and Rear Setback	0 ft. min.
KEY ACCESSORY STRUCTURES
Outbuildings (includes Detached Garages)		•	KEY:
Drive-Through Facilities		—	•	=	Allowed
Fuel Pumps		—	○	=	Requires Special Exception
Outdoor Storage		—	—	=	Not Allowed
Parking Structure		—

Number and location of dwelling units.


	Zone
	N1, N2	Additional/References
Principal Dwelling Units	1 in principal building unit	See Article 5 for allowed uses.
Accessory Dwelling Units	Not allowed	See Article 5 for allowed uses.

Height.

Figure 660-26(4) Lane Rowhouse Height and Roofs

Height. [See Figure 660-26(4).]
		Zone
		N1, N2	Additional/References
11	Height	1.5 stories min. 2.5 stories and 28 ft. max	See supplemental regulations on half stories in § 660-26J. See § 660-131M for measuring height.
12	Height to Eaves for Pitched Roofs	20 ft. max.	Height to eaves is measured from the first floor to the bottom of the eave. See § 660-131M for measuring height to eaves.

Roofs.

Roofs. [See Figure 660-26(4).]
		Zone
		N1, N2	Additional/References
13	Allowed Roof Types	Pitched	See § 660-61 for roof types and towers.
	Tower	Not allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-26(5) Lane Rowhouse Facades

Front and Side-Street Facades. [See Figure 660-26(5).]
		Zone
		N1, N2	Additional/References
14	Transparency: Front Facades Side Facades	15% min. 10% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
14		On the front facade, no bay nor 10-ft.-wide section of any story may be without transparency
15	Entrance Location	Front, side-street, or side facade
16	Allowed Entrance Types	Stoop, Porch Stoops that encroach into the r.o.w. require an encroachment permit.	See § 660-63 for entrance types.
17	Ground-Floor Elevation	Between 12 in. and 30 in. above grade	See § 660-63 for entrance types.
	Horizontal Divisions with Shadow Lines	—	See § 660-150 for definition of shadow lines.
	Vertical Divisions with Shadow Lines	—	See § 660-150 for definition of shadow lines.

Supplemental lane rowhouse regulations.

(1)

Half stories in roof. See § 660-131M(8) for definition of half story.

(a)

The occupiable footprint of half stories in the roof is limited to no more than 65% of the footprint of the story below.

(b)

Dormers on half stories are limited to no more than 50% of the facade length of the story below.

§ 660-27 Suburban rowhouse.

Description and intent. Suburban rowhouses are vertical units that share side walls with other units. Two or more units comprise a building, located on a single lot or multiple buildings may be located on a single lot. Or, as discussed in the supplemental regulations for the building type, each unit may be located on a separate lot (fee simple) with zero lot lines between the units. Each unit is oriented to an A or B street, with an entrance from a stoop or porch on the front of the building. Parking is located in the rear and any garage access is from a rear facade.

Illustrative images. The images shown in Figure 660-27(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Building regulations. The following tables and illustrations regulate this specific building type. For the purposes of the suburban rowhouse, a building consists of a series of units. See § 660-18 for general regulations for all building types. See Article 14 for definitions and measuring table regulations.

Link	Subsection
§ 660-27D	Building Siting
§ 660-27E	Parking and Accessory Structures
§ 660-27F	Number and Location of Dwelling Units
§ 660-27G	Height
§ 660-27H	Roofs
§ 660-27I	Front and Side-Street Facades
§ 660-27J	Supplemental Regulations

Building siting.

Figure 660-27(2) Suburban Rowhouse Siting

Building Siting. [See Figure 660-27(2).]
		Zones
		GX-C, NX, N3	Additional/References
	Multiple Principal Buildings	Allowed	See § 660-27J for multiple buildings on a lot. A "building" consists of attached multiple units.
1	Lot Width: Interior Unit End Unit Lot Size	18 ft. min. per unit 28 ft. min. per unit 1,800 s.f. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Building Width, maximum	8 rowhouse units
3	Front Build-to Zone	15 ft. min. 25 ft. max.	See § 660-131G for measuring and front-yard averaging. Minimum streetscape area required per § 660-18L.
3	Front Build-to Zone	Front-yard averaging applies
4	Front Porch, Enclosed Porch Setback	7.5 ft. min.
5	Side-Street Build-to Zone	5 ft. min. 20 ft. max.
6	Side Setback Space between Buildings	10 ft. min.; 0 ft. between units 12 ft. min.
7	Rear Setback	30 ft. min.
8	Building Coverage Landscape Yard Area	60% max. 15 ft. min. depth, 150 s.f. min. per unit; Landscape yard area may be located in the front, rear, side-street, or side yard, but must be located adjacent to unit.	See § 660-131I for measuring building coverage.
9	Building Coverage Landscape Yard Area		See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-27(3) Suburban Rowhouse Parking

Parking and Accessory Structures. [See Figure 660-27(3).]
		Zones
		GX-C, NX, N3	Additional/References
10	Parking and Driveway Access	Driveway access is allowed per § 660-18K.	See Article 9 for parking.
11	Attached Garage Setback Allowed Garage Door Location (facade)	Min. 15 ft. behind front facade Rear; not visible from a front street and screened from side streets	See § 660-131J for garage door setback.
12	Surface Parking and Accessory Structure Location	Rear yard	See Article 6 for accessory structures.
	Street-Side Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.
KEY ACCESSORY STRUCTURES
Outbuildings (includes Detached Garages)		•	KEY:
Drive-Through Facilities		—	•	=	Allowed
Fuel Pumps		—	○	=	Requires Special Exception
Outdoor Storage		—	—	=	Not Allowed
Parking Structure		—

Number and location of dwelling units.


	Zones
	GX-C, NX, N3	Additional/References
Principal Dwelling Units	1 in principal building unit	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements.
Accessory Dwelling Units	1 in principal building unit

Height.

Figure 660-27(4) Suburban Rowhouse Height and Roofs

Height. [See Figure 660-27(4).]
		Zones
		GX-C, NX, N3	Additional/References
13	Height	1.5 stories min. 2.5 stories max., except 3 stories max. for up to half of the units in a building	See supplemental regulations on half stories in § 660-27J. See § 660-131M for measuring height.
14	Floor-to-Floor Height	9.5 ft. min. 11 ft. max.	Measured floor-to-floor.
15	Height to Eaves for Pitched Roofs	20 ft. max.	Height to eaves is measured from the first floor to the bottom of the eave. See § 660-131M for measuring height to eaves.

Roofs.

Roofs. [See Figure 660-27(4).]
		Zones
		GX-C, NX, N3	Additional/References
16	Allowed Roof Types	Pitched; Parapet; Flat roof may be used for up to half of the units in a building	See § 660-61 for roof types and towers.
16	Tower	Not allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-27(5) Suburban Rowhouse Facades

Front and Side-Street Facades. [See Figure 660-27(5).]
		Zones
		GX-C, NX, N3	Additional/References
17	Transparency: Front Facades Side-Street Facades	18% min. 12% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
17	Transparency: Front Facades Side-Street Facades	On the front facade, no bay nor 10-ft.-wide section of any story may be without transparency
18	Unit Entrance Location	Front or side-street facade	See § 660-27J(4) for courtyards.
19	Allowed Entrance Types	Stoop, Porch; no more than 2 doors may share a porch or stoop	See § 660-63 for entrance types. See § 660-133 for definition of visible basement
20	Ground-Floor Elevation	Between 12 in. and 30 in. above grade, or 30 in. to 48 in. above grade with visible basement
21	Horizontal Divisions with Shadow Lines	One shadow line within 3 ft. of any visible basement or the top of the first floor on any street facade	See § 660-150 for definition of shadow lines.
22	Vertical Divisions with Shadow Lines	One shadow line per every 3 units on the ground story, front facade	See § 660-150 for definition of shadow lines.

Supplemental suburban rowhouse regulations.

(1)

Porch, enclosed porch in street yards. Porches and enclosed porches allowed within the porch setback area per § 660-27D, 4, must meet the following:

(a)

Height. Porches and enclosed porches located in the street yard may be no taller than one story.

(b)

Porch. See § 660-63C for porch and enclosed porch regulations.

(c)

Size. Porches must be at least half as wide of the front facade, meeting the minimum porch entrance type regulations.

(d)

Other allowed encroachments. See § 660-131G for other allowed encroachments into setbacks or beyond build-to zones.

(2)

Garage door visibility. Garage doors must be screened from any street by the building or by a wing wall.

(3)

Half stories in roof. See § 660-131M(8) for definition of half story.

(a)

The occupiable footprint of half stories in the roof is limited to no more than 65% of the footprint of story below.

(b)

Dormers on half stories are limited to no more than 50% of the facade length of the story below.

(4)

Multiple buildings on a lot. Multiple buildings may be located on a lot with the following regulations:

(a)

The minimum space between buildings is met.

(b)

Each building must fulfill all of the requirements of the building type unless otherwise expressly stated.

(c)

Each building must be located in the front or side-street build-to zone, except one of every two units may front a courtyard. See Figure 660-27(6).

[1]

The courtyard counts as front streetwall as long as three sides are enclosed at the minimum of 75%. One side of the courtyard may be defined by a landscape wall.

[2]

Parking is not allowed in the courtyard.

[3]

Street facade requirements apply to courtyard facades, treated as a front facade. If a unit is located on the corner of the courtyard and the street, the unit must use the street facade as the front facade.

(5)

Each unit on a separate lot. Each unit may be located on a separate lot provided each unit and each building (combination of units) as a whole meets all of the regulations.

Figure 660-27(6) Courtyard Layout for Suburban Rowhouse

§ 660-28 Twin house.

Description and intent. The twin house is a house located on its own lot and sharing a common wall with another house on an abutting lot. Front facades are oriented to an A or B street and include windows on all stories and entrances located off front porches. Parking is typically located in the rear yard or in an accessory garage structure. Roofs vary in type, with a half story often located within a pitched roof structure.

Illustrative images. The images shown in Figure 660-28(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Building regulations. The following tables and illustrations regulate this specific building type and apply to each house. See § 660-18 for general regulations for all building types. See Article 14 for definitions and measuring table regulations.

Link	Subsection
§ 660-28D	Building Siting
§ 660-28E	Parking and Accessory Structures
§ 660-28F	Number and Location of Dwelling Units
§ 660-28G	Height
§ 660-28H	Roofs
§ 660-28I	Front and Side-Street Facades
§ 660-28J	Supplemental Regulations

Building siting.

Figure 660-28(2) Twin House Siting

Building Siting. [See Figure 660-28(2).]
		Zones
		N3, N4	GX-C, GX-N	Additional/References
	Multiple Principal Buildings	Not allowed	Not allowed	A building consists of two attached units.
1	Lot Width Lot Size	22 ft. min. 1,800 s.f. min.	20 ft. min. 1,800 s.f. min.	A building consists of two attached units.
	Lot Frontage	A or B Street. See § 660-18J for front street designation regulations.
2	Number of Connected Houses	2 house units max.	2 house units max.	Measured in build-to zone along any street frontage per § 660-131F.
	Front Streetwall of Connected Houses Combined	55 ft. max.	65 ft. max.
3	Front Build-to Zone	10 ft. min. 20 ft. max.	10 ft. min. 20 ft. max.	See § 660-131G for measuring and front-yard averaging. Minimum streetscape area required per § 660-18L.
3	Front Build-to Zone	Front-yard averaging applies
4	Front Porch, Enclosed Porch Setback	8 ft. min.	5 ft. min.
5	Side-Street Build-to Zone	10 ft. min. 30 ft. max.	10 ft. min. 30 ft. max.
6	Side Setback	4 ft. min.; 0 ft. between units	4 ft. min.; 0 ft. between units
7	Rear Setback	35 ft. min.	20 ft. min.
8	Rear Yard Landscape Area Depth	15 ft. min. depth, 150 s.f. min. area.	no min.
9	Building Coverage	70% max.	70% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-28(3) Twin House Parking Siting

Parking and Accessory Structures. [See Figure 660-28(3).]
		Zones
		N3, N4	GX-C, GX-N	Additional/References
10	Parking and Driveway Access	Driveway access is allowed per § 660-18K.		See Article 9 for parking
11	Attached Garage Setback	Rear of building; min. 20 ft. behind front facade		See § 660-131J for garage door setback.
11	Allowed garage door location (facade)	Rear; not visible from front street and screened from side streets		See § 660-131J for garage door setback.
12	Surface parking and Accessory Structure Location	Rear yard	Rear yard	See Article 6 for accessory structures.
	Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.	3 ft. min.
KEY ACCESSORY STRUCTURES
Outbuildings (includes Detached Garages)		•	•	KEY:
Drive-Through Facilities		—	—	•	=	Allowed
Fuel Pumps		—	—	○	=	Requires Special Exception
Outdoor Storage		—	—	—	=	Not Allowed
Parking Structure		—	—	—	=	Not Allowed

Number and location of dwelling units.


	Zones
	N3, N4	GX-C, GX-N	Additional/References
Principal Dwelling Units	1 in principal building	1 in principal building	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements and § 660-49 for outbuildings.
Accessory Dwelling Units	1 in principal building or outbuilding	1 in principal building or outbuilding

Height.

Figure 660-28(4) Twin House Height and Roofs

Height. [See Figure 660-28(4).]
		Zones
		N3, N4	GX-C, GX-N	Additional/References
13	Height	1.5 stories min. 2.5 stories max.	1.5 stories min. 2.5 stories max.	See supplemental regulations on half stories in § 660-28J. See § 660-131M for measuring height.
14	Floor-to-Floor Height	9.5 ft. min. 11 ft. max.	9.5 ft. min. 11 ft. max.	Measured floor-to-floor.
15	Height to Eaves for Pitched Roofs	20 ft. max.	20 ft. max.	Height to eaves is measured from the first floor to the bottom of the eave. See § 660-131M for measuring height to eaves.

Roofs.

Roofs. [See Figure 660-28(4).]
		Zones
		N3, N4	GX-C, GX-N	Additional/References
16	Allowed Roof Types	Pitched, Flat, or Parapet; Dormers required on front facade of half stories in Pitched roof		See § 660-61 for roof types and towers.
	Tower	Allowed only on one of the two attached units		See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-28(5) Twin House Facades

Front and Side-Street Facades. [See Figure 660-28(5).]
		Zones
		N3, N4	GX-C, GX-N	Additional/References
17	Transparency: Front Facades	15% min.	15% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
	Side Facades	10% min.	10% min.
	Side Facades	On the front facade, no bay nor 10-ft.-wide section of any story may be without transparency
18	Entrance Location per House	Front facade	Front facade
19	Allowed Entrance Types	Porch or Enclosed Porch	Porch or Enclosed Porch	See § 660-63 for entrance types. See § 660-133 for definition of visible basement.
20	Ground-Floor Elevation	Between 18 in. and 30 in. above grade or between 30 in. and 48 in. with a visible basement
	Horizontal Divisions with Shadow Lines	—		See § 660-150 for definition of shadow lines.
	Vertical Divisions with Shadow Lines	—		See § 660-150 for definition of shadow lines.

Supplemental twin house regulations.

(1)

Porch, enclosed porch in front yards. Porches and enclosed porches allowed within the front yard porch setback area per § 660-28D, 4, must meet the following:

(a)

Height. Porches and enclosed porches located in the front yard may be no taller than one story.

(b)

Porch. See § 660-63C for porch and enclosed porch regulations.

(c)

Size. Porches must be at least half as wide of the front facade, meeting the minimum porch entrance type regulations.

(d)

Other allowed encroachments. See § 660-131G for other allowed encroachments into setbacks or beyond build-to zones.

(2)

Half stories in roof. See § 660-131M(8) for definition of half story.

(a)

The occupiable footprint of half stories in the roof is limited to no more than 65% of the footprint of story below.

(b)

Dormers on half stories are limited to no more than 50% of the facade length of the story below. See Figure 660-28(6).

Figure 660-28(6) Dormers and Gable Ends on Half Stories

§ 660-29 House A.

Description and intent. House A incorporates characteristics typical of houses at the turn of the twentieth century and those built prior to World War II, and, depending on the zone, may house residential or other uses. Parking for residential and commercial uses is located in the rear yard and accessed off an alley or C street. The houses are typically two or 2.5 stories in height with the half story located within a pitched roof. Front facades on the street include windows on all stories and entrances located off front porches or stoops.

Illustrative images. The images shown in Figure 660-29(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-29D	Building Siting
§ 660-29E	Parking and Accessory Structures
§ 660-29F	Number and Location of Dwelling Units
§ 660-29G	Height
§ 660-29H	Roofs
§ 660-29I	Front and Side-Street Facades
§ 660-29J	Supplemental Regulations

Building siting.

Figure 660-29(2) House A Building Siting

Building Siting. [See Figure 660-29(2).]
		Zones
		GX-C	GX-N, NX, N2	N3, N4	Additional/References
	Multiple Principal Buildings	Not allowed	Not allowed	Not allowed
1	Lot Width Lot Size	60 ft. min. 3,500 s.f. min.	40 ft. min. 2,000 s.f. min.	40 ft. min. 3,500 s.f. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations
2	Front Streetwall	65 ft. max.	45 ft. max.	50 ft. max.	Measured at front facade line along any front street per § 660-131F.
3	Front Setback or Build-to Zone	30 ft. min. —	15 ft. min. 25 ft. max.	15 ft. min. —	Front-yard averaging applies. See § 660-131G for measuring. See § 660-29J for allowed encroachments and enclosed porch configurations.
4	Front Porch, Enclosed Porch Setback	20 ft. min.	5 ft. min.	8 ft. min.
5	Side-Street Setback	10 ft. min.	5 ft. min.	10 ft. min.
6	Side Setback	4 ft. min.	4 ft. min.	6 ft. min.
7	Rear Setback	35 ft. min.	35 ft. min.	35 ft. min.
8	Rear Landscape Yard	—	15 ft. min. depth; 150 s.f. min. area	15 ft. min. depth; 150 s.f. min. area
9	Building Coverage	60% max.	60% max.	50% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-29(3) House A Parking Siting

Parking and Accessory Structures. [See Figure 660-29(3).]
		Zones
		GX-C	GX-N, NX, N2	N3, N4	Additional/References
10	Parking and Driveway Access	Driveway access is allowed per 660-18K.			See Article 9 for parking.
11	Attached Garage Setback Allowed garage door location	20 ft. min. behind front facade in rear of building Rear or side-street facade			See § 660-131J for garage door setback.
12	Surface Parking and Accessory Structure Location	Rear Yard	Rear Yard	Rear Yard	See Article 6 for accessory structures.
	Street-side Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.	3 ft. min.	3 ft. min.
KEY ACCESSORY STRUCTURES
Outbuildings (includes Detached Garages)		•	•	•	KEY:
Drive-Through Facilities		—	—	—	•	=	Allowed
Fuel Pumps		—	—	—	○	=	Requires Special Exception
Outdoor Storage		—	—	—	—	=	Not Allowed
Parking Structure		—	—	—	—	=	Not Allowed

Number and location of dwelling units.


	Zones
	GX-C	GX-N, NX, N2	N3, N4	Additional/References
Principal Dwelling Units	Up to 6 in principal building	Up to 2 in principal building	1 in principal building	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements and § 660-49 for outbuildings.
Accessory Dwelling Units	—	—	1 in principal building or outbuilding

Height.

Figure 660-29(5) House A Height and Roofs

Height. [See Figure 660-29(5).]
		Zones
		GX-C	GX-N, NX, N2	N3, N4	Additional/References
13	Height	2 stories min. 2.5 stories max.; 3 stories max with both visible basement and half story in roof	1.5 stories min. 2.5 stories max.; 3 stories max with both visible basement and half story in roof	2 stories min. 2.5 stories max.	See § 660-29J for half story regulations. See § 660-131M for measuring height.
14	Story Height	9 ft. min. 12 ft. max.	9 ft. min. 11 ft. max.	9 ft. min. 11 ft. max.	Measured floor-to-floor.
15	Height to Eaves	20 ft. max.	20 ft. max.	20 ft. max.	Height to eaves is measured from the first floor to the bottom of the eave. See § 660-131M for measuring height to eaves.

Roofs.

Roofs. [See Figure 660-29(6).]
		Zones
		GX-C	GX-N, NX, N2	N3, N4	Additional/References
16	Allowed Roof Types	Pitched	Pitched	Pitched	See § 660-61 for roof types and towers.
	Tower	Allowed	Allowed	Allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-29(6) House A Facades

Front and Side-Street Facades. [See Figure 660-29(6).]
		Zones
		GX-C	GX-N, NX, N2	N3, N4	Additional/References
17	Transparency: Front Facades	18% min.	18% min.	18% min.	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
	Side-Street Facades	12% min.	12% min.	12% min.
		No bay nor 10-ft.-wide section of any story may be without transparency
18	Building Entrance Location	Front facade	Front facade	Front facade
19	Allowed Entrance Types	Porch or Stoop	Porch or Stoop	Porch or Stoop	See § 660-63 for entrance types. See § 660-133 for definition of visible basement.
20	Ground-Floor Elevation	Between 12 in. and 30 in. above grade or between 30 in. and 48 in. with a visible basement
21	Horizontal Divisions with Shadow Lines	Within 3 ft. of the top of any visible basement and between 2nd and half story			See § 660-150 for definition of shadow lines.

Supplemental house A regulations.

(1)

Porch, enclosed porch in front yards. Porches and enclosed porches allowed within the front yard porch setback area per § 660-29D, 4, must meet the following:

(a)

Height. Porches and enclosed porches located in the front yard may be no taller than one story.

(b)

Porch. See § 660-63C for porch and enclosed porch regulations.

(c)

Size. Porches must be at least half as wide of the front facade, meeting the minimum porch entrance type regulations.

(d)

Other allowed encroachments. See § 660-131G(3) for other allowed encroachments into setbacks or beyond build-to zones.

(2)

Half stories in roof. See § 660-131M(8) for definition of half story.

(a)

The occupiable footprint of half stories in the roof is limited to no more than 65% of the footprint of story below.

(b)

Dormers on half stories are limited to no more than 50% of the facade length of the story below. See Figure 660-28(6).

§ 660-30 House B.

Description and intent. The smaller scale house B incorporates characteristics typical of houses built between the 1930s and 1960s in Allentown, including a footprint that is usually oriented parallel to the street. Parking is typically located in the rear yard or in a small garage on the front of the building. The houses are typically 1.5 to 2 stories in height; the half story is located within a steeply pitched roof with the main ridge parallel to the street. Floor-to-floor story heights are typically lower than house A, making even the two story versions appear lower in scale to a house A.

Illustrative images. The images shown in Figure 660-30(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-30D	Building Siting
§ 660-30E	Parking and Accessory Structures
§ 660-30F	Number and Location of Dwelling Units
§ 660-30G	Height
§ 660-30H	Roofs
§ 660-30.I	Front and Side-Street Facades
§ 660-30J	Supplemental Regulations

Building siting.

Figure 660-30(2) House B Building Siting

Building Siting. [See Figure 660-30(2).]
		Zones
		N3, N4, N5	Additional/References
	Multiple Principal Buildings	Not allowed; house B court allowed per § 660-30J(1), but each house must be on a separate lot
1	Lot Width Lot Size	40 ft. min. 3,500 s.f. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Setback	20 ft. min.	Front-yard averaging applies. See § 660-131G for measuring and allowed encroachments.
3	Side-Street Setback	10 ft. min.
4	Side Setback	6 ft. min.
5	Rear Setback Rear Yard Landscape Area	30 ft. min. 15 ft. min. depth; 150 s.f. min. area
6	Rear Setback Rear Yard Landscape Area	30 ft. min. 15 ft. min. depth; 150 s.f. min. area
7	Building Coverage	40% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-30(3) House B Parking Siting

Parking and Accessory Structures. [See Figure 660-30(3).]
		Zones
		N3, N4, N5	Additional/References
8	Parking and Driveway Access	Driveway access is allowed per § 660-18K.	See Article 9 for parking.
	Attached Garage Setback	No setback required	See § 660-131J for garage door setback
	Allowed Garage Door Location	Any facade; front facade, max. 35% of facade	See § 660-131J for garage door setback
9	Surface Parking and Accessory Structure Location	Rear yard only	See Article 6 for accessory structures.
	Street-Side Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.
MAJOR ACCESSORY STRUCTURES
Outbuildings (includes Detached Garages)		•	KEY:
Drive-Through Facilities		—	•	=	Allowed
Fuel Pumps		—	○	=	Requires Special Exception
Outdoor Storage		—	—	=	Not Allowed
Parking Structure		—	—	=	Not Allowed

Number and location of dwelling units.


	Zones
	N3, N4, N5	Additional/References
Principal Dwelling Units	1 in principal building	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements and § 660-49 for outbuildings.
Accessory Dwelling Units	1 in principal building or outbuilding

Height.

Figure 660-30(4) House B Height and Roofs

Height. [See Figure 660-30(4).]
		Zones
		N3, N4, N5	Additional/References
10	Height	1 story min. 2 stories max.	See § 660-131M for measuring height. See § 660-30J(2) for basement garage allowance.
11	Story Height	8 ft. min. 9 ft. min.	Measured floor-to-floor.

Roofs.

Roofs. [See Figure 660-30(4).]
		Zones
		N3, N4, N5	Additional/References
12	Allowed Roof Types	Pitched	See § 660-61 for roof types.
12	Tower	Not allowed	See § 660-61 for roof types.

Front and side-street facades.

Figure 660-30(5) House B Facades

Front and Side-Street Facades. [See Figure 660-30(5).]
		Zones
		N3, N4, N5	Additional/References
13	Transparency: Front Facades	12% min. .	Measured per story, including any half stories, visible basement, or towers with full-floor height. See § 660-131N for measuring transparency.
	Side-Street Facades	10% min
		On front facades, no bay nor 10-ft.-wide section of any story may be without transparency
14	Building Entrance Location	Front, street-side, or side facade
15	Allowed Entrance Types	Porch or Stoop	See § 660-63 for entrance types.
16	Ground-Floor Elevation	Between 0 and 30 in. above grade or between 30 in. and 48 in. with a visible basement	See § 660-30J(2) for basement garage allowance. See § 660-133 for definition of visible basement.

Supplemental house B regulations.

(1)

House B court. See Figure 660-30(6) for one layout of the following regulations. Multiple principal house B buildings may be located on separate lots fronting a courtyard as follows:

(a)

All houses and lots must be submitted and developed at the same time.

(b)

Each house must be located on a separate lot within the development.

(c)

Each building must fulfill all of the requirements of the building type unless otherwise expressly stated.

(d)

At least two houses must be located fronting along the street and no more than eight houses may front the courtyard.

(e)

The front street setback for houses fronting the courtyard is measured from the edge or lot line of the courtyard area, and the courtyard facade is the front facade.

(f)

The two houses fronting the street must have front entrances on the street facade.

(g)

Courtyard frontage. A courtyard minimum 50 feet wide and 50 feet deep must be located within the center of the development.

[1]

The courtyard must front a street and generally be enclosed on three sides by front facades of house B buildings. One side of the courtyard may be defined by a landscape wall.

[2]

The courtyard must be treated as landscape area and may not include any parking.

[3]

The courtyard must be designated as common open space and included in a deed-restricted covenant as such.

[4]

Facade requirements apply to courtyard facades. If a unit is located on the corner of the courtyard and the street, the entrance must be located on the street.

[5]

Attached garages must be set back a minimum of 20 feet from any courtyard facade.

(h)

A shared driveway must serve all units providing access to rear- or side-loaded garages. An access easement must be granted for each lot on the shared driveway and the driveway must be designated as shared access in a deed-restricted covenant.

(i)

An alternative house B court layout may be approved as a special exception per § 660-115.

Figure 660-30(6) House B Court Layout Example

(2)

Full height basement garage. Where the existing grade at the house foundation is four feet or more above the average curb or edge of pavement elevation, a full-story-height basement may be incorporated for a garage on the front facade. The basement garage may not occupy more than 50% the width of the house. That full height basement counts as a half story towards the overall allowed maximum height of the building.

Figure 660-30(7) Full Height Basement Garage

§ 660-31 House C.

Description and intent. House C is the most flexible house type and incorporates basic regulations for a variety of house designs. Garages may be included on the front facade, unlike most other house building types.

Illustrative images. The images shown in Figure 660-31(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-31D	Building Siting
§ 660-31E	Parking and Accessory Structures
§ 660-31F	Number and Location of Dwelling Units
§ 660-31G	Height
§ 660-31H	Supplemental Regulations

Building siting.

Figure 660-31(2) House C Building Siting

Building siting. [See Figure 660-31(2).]
		Zones
		N5	Additional/References
	Multiple Principal Buildings	Not allowed
1	Lot Width Lot Size	50 ft. min. 6,000 s.f. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Setback	25 ft. min.	Front-yard averaging applies. See § 660-131G for measuring and allowed encroachments.
3	Side-Street Setback	15 ft. min.
4	Side Setback	7 ft. min. with total of 16 ft. min.
5	Rear Setback	30 ft. min.
6	Building Coverage	30% max.

Parking and accessory structures.

Figure 660-31(3) House C Parking Siting

Parking and Accessory Structures. [See Figure 660-31(3).]
		Zones
		N5	Additional/References
7	Parking Access	Driveway access is allowed per § 660-18K.
8	Accessory Structure Location	Rear yard	See Article 6 for accessory structures.
	Street-Side Setback	No closer to lot line than principal building
	Side and Rear Setback	5 ft. min.
KEY ACCESSORY STRUCTURES
Outbuildings (includes Detached Garages)		•	KEY:
Drive-Through Facilities		—	•	=	Allowed
Fuel Pumps		—	○	=	Requires Special Exception
Outdoor Storage		—	—	=	Not Allowed
Parking Structure		—

Number and location of dwelling units.


	Zones
	N5	Additional/References
Principal Dwelling Units	1 in principal building	See Article 5 for allowed uses and § 660-42 for accessory dwelling unit requirements and § 660-49 for outbuildings.
Accessory Dwelling Units	1 in principal building or outbuilding

Height.

Height.
		Zones
		N5	Additional/References
9	Height	1 story min. 2.5 stories max., 38 ft. max.	See § 660-131M for measuring height.

Supplemental house C regulations.

(1)

(Reserved)

§ 660-32 Workshop building.

Description and intent. The workshop building accommodates larger interior spaces primarily for production and manufacturing with a minimum level of orientation to the sidewalk and pedestrians. In more visible locations, the front of the building has transparency regulations making the building appear storied at the front.

Illustrative images. The images shown in Figure 660-32(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-32D	Building Siting
§ 660-32E	Parking and Accessory Structures
§ 660-32F	Height
§ 660-32G	Front and Side-Street Facades
§ 660-32H	Supplemental Regulations

Building siting.

Figure 660-32(2) Workshop Building Siting

Building Siting. [See Figure 660-32(2).]
		Zones
		IX, P1, P2	IG, IM	Additional/References
	Allowed per Table 660-3	Allowed in IX; allowed in P1 and P2 zones by special exception.	Allowed	See § 660-18C for multiple buildings.
	Multiple Principal Buildings	Allowed	Allowed
1	Lot Width	40 ft. min.	80 ft. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Streetwall	35% min.	—	Measured in build-to zone along any front lot line per § 660-131F.
3	Front Build-to Zone or Setback	10 ft. min. 35 ft. max.	10 ft. min. setback —	Minimum streetscape area required per § 660-18L.
4	Side-Street Setback	5 ft. min.	10 ft. min.	See § 660-131G for measuring.
5	Side Setback	8 ft. min.	8 ft. min.	See § 660-78 for landscape buffer Adjacent to N Zones.
	Side Setback Adjacent to N Zone	15 ft. min.	15 ft. min.
	Space between Buildings	12 ft. min.	12 ft. min.
6	Rear Setback	10 ft. min.	10 ft. min.
6	Rear Setback Adjacent to N Zone	30 ft. min.	30 ft. min.
7	Building Coverage	85% max.	85% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-32(3) Workshop Building Parking Siting

Parking and Accessory Structures. [See Figure 660-32(3).]
		Zones
		IX, P1, P2	IG, IM		Additional/References
8	Parking and Driveway Access	1 per 120 ft. of street frontage; or 2 on front street if no C street, improved alley, or side street abuts the property			See Article 9 for parking.
9	Allowed Garage Door Location	Any facade	Any facade
10	Surface Parking and Loading Location	Any yard	Any yard		See § 660-78 for landscape buffer adjacent to N zones.
10	Front, Side-Street, Side and Rear Setback	5 ft. min., 15 ft. min. abutting to N zone			See § 660-78 for landscape buffer adjacent to N zones.
11	Accessory Structure Location	Rear, side yard	Rear, side yard		See Article 6 for accessory structures.
	Street Setback	No closer to lot line than principal building	Same as building setback
	Side and Rear Setback	5 ft. min., 15 ft. min. abutting to N zone
KEY ACCESSORY STRUCTURES
Outbuildings		•	•		KEY:
Drive-Through Facilities		—	—		•	=	Allowed
Fuel Pumps		•	•	, accessory to use only	○	=	Requires Special Exception
Outdoor Storage		•	•		—	=	Not Allowed
Parking Structure		•	•		—	=	Not Allowed

Height.

Figure 660-32(4) Workshop Building Height

Figure 660-32(5) Workshop Building Facades

Height. [See Figure 660-32(4).]
		Zones
		IX, P1, P2	IG, IM	Additional/References
12	Height	50 ft. max.	50 ft. max.; See § 660-32H for additional height on larger parcels	See § 660-131M for measuring height.

Front and side-street facades.

Front and Side-Street Facades. [Figure 660-32(5).]
		Zones
		IX, P1, P2	IG, IM	Additional/References
13	Transparency: Front Façade	20% min.	—	Measured per story. See § 660-131N for measuring transparency.
		No bay nor 20-ft-wide section of any story may be without transparency, except garage door bays	—
		See § 660-131N(5) for tall story transparency requirements on tall stories over 18 ft. in height	—

Supplemental workshop building regulations.

(1)

Additional height. On lots 15 acres or larger in area, the maximum height of the building may be increased through a special exception approval, provided the following:

(a)

Other zone setback. Any portion of the building that exceeds 50 feet in height must be set back from any other zone other than IX, IG, or IM a distance of two times the height of that portion of the building. For example, where a building has portions with heights of 75 feet and 100 feet, the portion that is 75 feet high must be set back a minimum of 150 feet from the adjacent zone and the portion that is 100 feet high must be set back 200 feet from the adjacent zone.

(b)

Street setback. Additionally, the portion of the building with increased height must be set back a minimum of 50 feet from any street frontage with building frontage along the street no taller than 50 feet in height.

§ 660-33 Civic building.

Description and intent. The civic building is the most flexible building type, but is limited to buildings with specific large indoor or outdoor entertainment uses or civic and institutional uses. This building type is intended to allow distinctive buildings within the urban fabric, set back within a landscape setting or designed as unique, iconic structures. A front entrance and multiple windows on the street promote walking to the buildings, while parking is located on the side or in the rear.

Illustrative images. The images shown in Figure 660-33(1) are intended to illustrate the general character of the building type. The buildings and sites in each image may not fulfill all of the building type regulations.

Link	Subsection
§ 660-33D	Building Siting
§ 660-33E	Parking and Accessory Structures
§ 660-33F	Uses
§ 660-33G	Height
§ 660-33H	Roofs
§ 660-33I	Front and Side-Street Facades
§ 660-33J	Supplemental Regulations

Building siting.

Figure 660-33(2) Civic Building Siting

Building Siting. [See Figure 660-33(2).]
		Zones
		MX-D, GX-D, GX-C, GX-N	P1, P2	Additional/References
	Allowed per Table 660-3	Allowed in GX-D, GX-C and GX-N; Allowed in MX-D only with special exception approval	Allowed
	Multiple Principal Buildings	Not allowed	Allowed	See § 660-18C for multiple buildings.
1	Lot Width	50 ft. min.	50 ft. min.
	Lot Frontage	A or B street. See § 660-18J for front street designation regulations.
2	Front Setback	10 ft. min.	10 ft. min.	Minimum streetscape area required per § 660-18L. See § 660-131G for measuring.
3	Side-Street Setback	5 ft. min.	5 ft. min.
4	Side Setback Space between Buildings	5 ft. min. 10 ft. min.	5 ft. min. 12 ft. min.	See § 660-78 for landscape buffer adjacent to N zones.
5	Rear Setback	0 ft. min. at improved alley or C street; 10 ft. min.	10 ft. min.	See § 660-78 for landscape buffer adjacent to N zones.
6	Building Coverage	90% max.	90% max.	See § 660-131I for measuring building coverage.

Parking and accessory structures.

Figure 660-33(3) Civic Building Parking Siting

Parking and Accessory Structures. [See Figure 660-33(3).]
		Zones
		MX-D, GX-D, GX-C, GX-N	P1, P2	Additional/References
7	Parking and Driveway Access	Driveway access is allowed per § 660-18K.		See Article 9 for parking.
8	Attached Garage Setback Allowed Garage Door Location	20 ft. min. behind front facade, located in rear of building B or C street facade, rear facade, interior side facade		See § 660-131J for garage door setback.
9	Surface Parking Location	Rear, limited side yard, internal		See § 660-131K for allowed limited side-yard parking layout.
	Front and Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.	3 ft. min.
10	Accessory Structure Location	Rear yard	Rear yard	See Article 6 for accessory structures.
	Side-Street Setback	No closer to lot line than principal building
	Side and Rear Setback	3 ft. min.	3 ft. min.
KEY ACCESSORY STRUCTURES
Outbuildings		•	•	KEY:
Drive-Through Facilities		—	—	•	=	Allowed
Fuel Pumps		—	—	○	=	Requires Special Exception
Outdoor Storage		—	○	—	=	Not Allowed
Parking Structure		•	•	—	=	Not Allowed

Uses.

Uses.
	Zones
	MX-D, GX-D, GX-C, GX-N	P1, P2	Additional/References
Allowed Uses	Use of the civic building is limited only to the large, indoor spectator/participant entertainment use category, the outdoor spectator/participant entertainment use category, and any civic and institutional category uses allowed in the zone per Article 5. See § 660-33J for household living uses with historic designation.		See Article 5 for allowed uses.

Height.

Figure 660-33(4) Civic Building Height and Roofs

Height. [See Figure 660-33(4).]
		Zones
		MX-D, GX-D, GX-C, GX-N	P1, P2	Additional/References
11	Height	3 stories max., except in MX-D and GX-D:14 stories max.		See § 660-131M for measuring height.
	Additional Height Allowed by Floor-Area Ratio	In MX-D and GX-D only: see § 660-33J(2)	—
12	Ground Story Height	10 ft. min. 24 ft. max., additional height may be approved through the special exception process		Measured floor-to-floor.
13	All Other Stories Height	9 ft. min. 14 ft. max.	9 ft. min. 14 ft. max.	Measured floor-to-floor.

Roofs.

Roofs. [See Figure 660-33(4).]
		Zones
		MX-D, GX-D, GX-C, GX-N	P1, P2	Additional/References
14	Allowed Roof Types	Any	Any	See § 660-61 for roof types and towers.
15	Tower	Allowed	Allowed	See § 660-61 for roof types and towers.

Front and side-street facades.

Figure 660-33(5) Civic Building Facades

Front and Side-Street Facades. [Figure 660-33(5).]
		Zones
		MX-D, GX-D, GX-C, GX-N	P1, P2	Additional/References
16	Transparency: Front Facades	10% min.	10% min.	Measured per story, including any half stories, visible basements, or towers with full-floor height. See § 660-131N for measuring transparency.
	Side-Street Facades	10% min.	10% min.
		Lower transparency may be approved through the special exception process
		On front facades, no bay nor 20-ft.-wide section of any story may be without transparency
17	Building Entrances Location	One per every 100 ft. of front facade	One per every 100 ft. of front facade	See § 660-131O for measuring building entrance location.
18	Allowed Entrance Types	Any	Any	See § 660-63 for entrance types.
19	Ground-Floor Elevation	Less than 30 in. above grade or between 30 in. and 48 in. with a visible basement		See § 660-133 for definition of visible basement.
20	Horizontal Divisions with Shadow Lines	Within 3 ft. of the top of any story between the basement and 3rd story
	Vertical Divisions with Shadow Lines	—	—

Supplemental civic building regulations.

(1)

Household living uses with historic designation. When the civic building is eligible for listing on the National Register, household living uses (per § 660-36A) may be allowed as follows:

(a)

See Table 660-4 for uses allowed in the subject zone.

(b)

Special exception approval is required when household living is not allowed within the zone of the subject building.

(c)

See Table 660-5 for minimum dwelling unit sizes.

(d)

The number of dwelling units allowed in the civic building may not exceed the maximum number allowed for any building type permitted in the subject zone. If multiple building types are allowed in the zone, the building type that allows the most dwelling units shall serve as the maximum.

(e)

In zones that do not allow household living uses, the number of dwelling units allowed in the civic building may not exceed the maximum number allowed for any building type permitted in an abutting zone. If the lot occupied by the civic building abuts multiple zones, the abutting zone that permits the most dwelling units shall serve as the maximum.

(2)

Floor area ratio (FAR) in Downtown Zone. In MX-D and GX-D, additional height is allowed above the maximum story height as follows:

(a)

On lots less than 80 feet in width, no additional floor area is allowed above the maximum height in stories.

(b)

On lots 80 feet or less in width, heights may be increased up to a total allowed floor-area-ratio for the building of no more than 24.

(c)

See § 660-67 for high-rise design standards.