City of Rancho Cucamonga, CA DEVELOPMENT STANDARDS BY BASE ZONE

§ 17.36.010 Development standards for residential zones.

Purpose and Applicability. The purpose of this section is to establish minimum development standards that are unique to development projects within Residential Zones. Development standards in this section apply to all land designated on the zoning map within a Residential Zone.

Residential Zones Described. As identified in chapter 17.26 (Establishment of Zones), the city includes six Residential Zones and 13 subzones:

Very Low (VL).

Very Low – Etiwanda Heights 14000 (VL-EH 14000)

Very Low – Etiwanda Heights 9000 (VL-EH 9000)

Low (L).

Low – Etiwanda Specific Plan (L-ESP)

Low Medium (LM).

Low Medium – Terra Vista (LM-TV)

Low Medium – Etiwanda Specific Plan South (LM-ESP South)

Low Medium – Etiwanda Specific Plan (LM-ESP)

Medium (M).

Medium – Terra Vista 1 (M-TV1)

Medium – Etiwanda Specific Plan South (M-ESP South)

Medium – Etiwanda Specific Plan (M-ESP)

Medium High (MH).

Medium High – Terra Vista (MH-TV)

High (H).

High – Terra Vista (H-TV)

Residential Site Development Standards. General site development standards for residential zones are listed in Table 17.36.010-1A and Table 17.36.010-1B (Development Standards for Residential Zones). These development standards supplement the development standards in article IV (Site Development Provisions) that apply to all zones (e.g., parking, signs, landscaping, lighting). When there is no standard provided, there is no required minimum or maximum for that zone or subzone.

TABLE 17.36.010-1A DEVELOPMENT STANDARDS FOR RESIDENTIAL ZONES
Development Standard/Zone	VL	VL-EH 14000	VL-EH 9000	L	L-ESP	LM	LM-TV	LM-ESP South	LM-ESP
Lot area (minimum)	20,000 sf	14,000 sf	9,000 sf	7,200 sf	10,000 sf	5,000 sf	5,000 sf	5,000 sf	7,200 sf
Lot area (minimum net avg)	22,500 sf	-	-	8,000 sf	-	5,000 sf	-	-	-
Lot width (minimum)	90 ft ⁽¹⁾	80 ft	60 ft	65 ft ⁽¹⁾	80 ft	50 ft ⁽¹⁾	50 ft	50 ft	60 ft
Lot width (corner lot)	100 ft	-	-	70 ft	-	50 ft	-	-	-
Lot depth (minimum)	200 ft	-	-	100 ft	100 ft	90 ft	-	90 ft	100 ft
Minimum frontage	50 ft	-	-	40 ft	40 ft	30 ft	-	30 ft	40 ft
Minimum frontage (flag lot)	30 ft	-	-	20 ft	-	20 ft	-	-	-
Allowed Density (dwelling units per acre)
Minimum density ⁽²⁾	-	-	-	-	2 du/ac	4 du/ac	4 du/ac	4 du/ac	4 du/ac
Maximum density	2 du/ac	2 du/ac	2 du/ac	6 du/ac	6 du/ac	8 du/ac ⁽³⁾	8 du/ac	8 du/ac	8 du/ac
Minimum Setback
Front yard ⁽⁴⁾	42 ft ⁽⁵⁾	20 ft	20 ft	37 ft ⁽⁵⁾	25 ft	32 ft ⁽⁵⁾	20 ft from curb	20 ft average vary ±5 ft	25 ft
Corner side yard ⁽⁴⁾	27 ft	15 ft	16 ft	27 ft	15 ft	22 ft	-	15 ft	25 ft
Interior side yard ⁽⁴⁾	10/15 ft	Not less than 15 ft total. 5 ft minimum on one side for a 1-story structure. 7 ft for a 2-story structure unless second story steps back 2 ft from first story.		5/10 ft	0/20 ft Total 20 ft	5/10 ft	0/10 ft total or 5/15 ft	0/15 ft Total 15 ft	0/15 ft Total 15 ft
Rear yard ⁽⁴⁾	60 ft	20 ft	20 ft	20 ft	25 ft	15 ft	10 ft	15 ft	20 ft
Building Height (maximum in feet) ⁽⁷⁾
Primary buildings	35 ft	35 ft	36 ft	35 ft	35 ft	35 ft	35 ft	-	35 ft
Lot coverage (maximum lot coverage with buildings as a percentage of the parcel or project)
Lot coverage	25%	30%	30%	40%	30%	50%	60%	50%	40%
Open Space Requirement (minimum percentage of open space per parcel or project)
Private open space (ground floor/upper story)	-	-	-	-	-	300/150 sf	-	-	-
Open space (private and common)	-	-	-	-	-	40% (12)	-	-	-
Minimum patio/porch depth	6 ft ⁽⁸⁾	-	-	6 ft ⁽⁸⁾	-	6 ft ⁽⁸⁾	-	-	-
Minimum Dwelling Unit Size ⁽⁹⁾
Single-family (attached and detached)	-	-	-	-	-	-	-	-	-
Multi-family (10)	-	-	-	-	-	-	-	-	-
Efficiency/studio	-	-	-	-	-	-	-	-	-
One bedroom	-	-	-	-	-	-	-	-	-
Three or more bedrooms	-	-	-	-	-	-	-	-	-
Distance Between Building/Structure Fronts ⁽⁶⁾ ⁽¹¹⁾ (minimum)
Between buildings with no patio or recessed patio	-	-	-	-	-	30 ft	-	-	-
Between patio fence/wall less than 5 feet in height	-	-	-	-	-	15 ft	-	-	-
Between patio fence/wall more than 5 feet in height	-	-	-	-	-	20 ft	-	-	-
Between balconies above patio fence/wall more than 5 feet in height	-	-	-	-	-	20 ft	-	-	-
Between a patio fence/wall and a building wall	-	-	-	-	-	20 ft	-	-	-
With common patio fence/wall	-	-	-	-	-	30 ft	-	-	-
Other Miscellaneous Building Setback Requirements ⁽⁶⁾ (minimum)
Building to one-story detached garage/carport or other accessory structure	-	-	-	-	-	6 ft/15 ft	-	-	-
Building to wall or curb at project entry	-	-	-	-	-	20 ft	-	-	-

Table notes:
(1)	Average width, which shall vary accordingly: VL - +/- 10 feet; L & LM - +/- 5 feet
(2)	Excluding land necessary for secondary streets and arterials and in hillside areas shall be dependent on the slope/capacity factor contained in chapter 17.52 (Hillside Development).
(3)	Developing multi-family in the LM zone and single-family in the M zone at the maximum density requires compliance with Standards for Higher Residential Densities as outlined in section 17.36.020(D).
(4)	Setbacks are measured between the structure and curb face in front yards and corner side yards. Setbacks are measured between the structure and property line in rear yards and interior side yards.
(5)	Average setback, which shall vary +/- five feet.
(6)	Applies to buildings two stories and taller in height. Add ten more feet for each story over two stories.
(7)	In hillside areas, heights shall be limited to 30 feet.
(8)	Free and clear of obstructions.
(9)	Senior citizen projects are exempted from this requirement.
(10)	To assure that smaller units are not concentrated in any one area or project, the following percentage limitations of the total number of units shall apply: Ten percent for efficiency/studio and 35 percent for one bedroom or up to 35 percent combined. Subject to a conditional use permit, the planning commission may authorize a greater ratio of efficiency or one-bedroom units when a development exhibits innovative design qualities and a balanced mix of unit sizes and types.
(11)	"Front" is defined as the face of the building or unit with the major glass area and/or major recreation area and may include access to that private recreation area. This access may or may not relate to the primary entrance to the building that faces the street or drive; therefore, some buildings may have more than one front.
(12)	Waterways preserved count towards overall common open space requirements.

TABLE 17.36.010-1B DEVELOPMENT STANDARDS FOR RESIDENTIAL ZONES
Development Standard/Zone	M⁽¹⁵⁾	M⁽¹⁶⁾	M-TV1	M-ESP South	M-ESP	MH	MH-TV	H	H-TV
Lot area (minimum)	4,000 sf	3 ac ⁽¹⁾	3,500 sf	5,000 sf	7,200 sf	3 ac ⁽¹⁾	1 ac	3 ac ⁽¹⁾	2 ac
Lot area (minimum net avg)	4,000 sf	3 ac ⁽¹⁾	-	-	-	3 ac ⁽¹⁾	-	3 ac ⁽¹⁾	-
Lot width (minimum)	45 ft	-	-	50 ft	60 ft	-	-	-	-
Lot width (corner lot)	50 ft	-	-	-	-	-	-	-	-
Lot depth (minimum)	80 ft	-				-	-	-	-
Minimum frontage	30 ft	100 ft	-	30 ft	40 ft	100 ft	-	100 ft	-
Minimum frontage (flag lot)	20 ft	50 ft	-	-	-	50 ft	-	50 ft	-
Allowed Density (dwelling units per acre)
Minimum density ⁽²⁾	8 du/ac	8 du/ac	8 du/ac	8 du/ac	8 du/ac	14 du/ac	14 du/ac	24 du/ac	24 du/ac
Maximum density	14 du/ac	14 du/ac ⁽³⁾	14 du/ac	14 du/ac	14 du/ac	24 du/ac	24 du/ac	30 du/ac	30 du/ac
Minimum Setback
Front yard ⁽⁴⁾	27 ft ⁽⁵⁾	37 ft ⁽⁵⁾	20 ft from curb	20 ft average vary ±5 ft	25 ft	-	-	-	-
Corner side yard ⁽⁴⁾	17 ft	27 ft	-	15 ft	25 ft	-	-	-	-
Interior side yard ⁽⁴⁾	5/5 ft	10 ft ⁽⁶⁾	0/10 ft total or 5/15 ft	0/15 ft Total 15 ft	0/15 ft Total 15 ft	-	-	-	-
Rear yard ⁽⁴⁾	15 ft	10 ft ⁽⁶⁾	10ft	15 ft	20 ft	-	-	-	-
Building Height (maximum in feet) ⁽⁸⁾
Primary buildings	35 ft	35 ft ⁽⁹⁾	35 ft	-	35 ft	40 ft ⁽⁹⁾	45 ft	55 ft ⁽⁹⁾	65 ft
Lot coverage (maximum lot coverage with buildings as a percentage of the parcel or project)
Lot coverage	50%	50%	0%	50%	40%	50%	0%	50%	0%
Open Space Requirement (minimum percentage of open space per parcel or project)
Private open space (ground floor/upper story)	-	225/150 sf	-	-	-	150/100 sf	-	150/100 sf	-
Open space (private and common)	35%(17)	35%(17)	-	-	-	35%(17)	-	35%(17)	-
Minimum patio/porch depth	6 ft ⁽¹⁰⁾	6 ft ⁽¹⁰⁾	-	-	-	6 ft ⁽¹⁰⁾	-	6 ft ⁽¹⁰⁾	-
Minimum Dwelling Unit Size ⁽¹⁾
Single-family (attached and detached)	1,000 sf	-	-	-	-	-	-	-	-
Multi-family ⁽¹²⁾	550 sf	-	-	-	-	-	-	-	-
Efficiency/studio	650 sf	-	-	-	-	-	-	-	-
One bedroom	800 sf	-	-	-	-	-	-	-	-
Three or more bedrooms	950 sf	-	-	-	-	-	-	-	-
Distance Between Building/Structure Fronts ⁽⁷⁾ ⁽¹³⁾ (minimum)
Between buildings with no patio or recessed patio	-	30 ft	-	-	-	30 ft	-	30 ft	-
Between patio fence/wall less than 5 feet in height	-	15 ft	-	-	-	15 ft	-	15 ft	-
Between patio fence/wall more than 5 feet in height	-	20 ft	-	-	-	20 ft	-	20 ft	-
Between balconies above patio fence/wall more than 5 feet in height	-	20 ft	-	-	-	20 ft	-	20 ft	-
Between a patio fence/wall and a building wall	-	20 ft	-	-	-	20 ft	-	20 ft	-
With common patio fence/wall	-	30 ft	-	-	-	30 ft	-	30 ft	-
Other Miscellaneous Building Setback Requirements ⁽⁷⁾ (minimum)
Building to one-story detached garage/carport or other accessory structure	-	15 ft	-	-	-	15 ft	-	15 ft	-
Building to wall or curb at project entry	-	20 ft	-	-	-	20 ft	-	20 ft	-

Table notes:
(1)	On existing lots of record, parcels less than three acres or less than the required minimum frontage may only be developed at the lowest end of the permitted density range.
(3)	Excluding land necessary for secondary streets and arterials and in hillside areas shall be dependent on the slope/capacity factor contained in chapter 17.52 (Hillside Development).
(4)	Developing multi-family in the LM zone and single-family in the M zone at the maximum density requires compliance with Standards for Higher Residential Densities as outlined in section 17.36.020(D).
(5)	Setbacks are measured between the structure and curb face in front yards and corner side yards. Setbacks are measured between the structure and property line in rear yards and interior side yards.
(6)	Average setback, which shall vary +/- five feet.
(7)	Add ten feet if adjacent to VL, L, or LM zone.
(8)	Applies to buildings two stories and taller in height. Add ten more feet for each story over two stories.
(9)	In hillside areas, heights shall be limited to 30 feet.
(10)	Limit one story within 100 feet of VL or L zone for multiple-family dwellings.
(11)	Free and clear of obstructions.
(12)	Senior citizen projects are exempted from this requirement.
(13)	To assure that smaller units are not concentrated in any one area or project, the following percentage limitations of the total number of units shall apply: Ten percent for efficiency/studio and 35 percent for one bedroom or up to 35 percent combined. Subject to a conditional use permit, the planning commission may authorize a greater ratio of efficiency or one-bedroom units when a development exhibits innovative design qualities and a balanced mix of unit sizes and types.
(14)	"Front" is defined as the face of the building or unit with the major glass area and/or major recreation area and may include access to that private recreation area. This access may or may not relate to the primary entrance to the building that faces the street or drive; therefore, some buildings may have more than one front.
(15)	For single-family residential development in the Medium (M) Residential Zone, these standards shall apply.
(16)	For multi-family residential development in the Medium (M) Residential Zone, these standards shall apply.
(17)	Waterways preserved count towards overall common open space requirements.

Recreation area/facility. Where required, in the M, MH and H residential zones, the developer shall provide recreational amenities in conjunction with common open space as follows:

Development consisting of 30 units or less shall provide three of the following recreational amenities:

Open unobstructed lawn area with a minimum area of 1,000 square feet where one of the dimensions (width or depth) shall be a minimum of 50 feet.

One enclosed tot lot with a minimum area of 500 square feet and a minimum of five different types of play equipment.

Spa or pool.

Barbecue facility equipped with grill, picnic benches, etc.

Development consisting of 31 units to 100 units shall provide another set of recreational amenities as described in subsection (D)(1) above, or equivalent, as approved by the planning commission.

Development consistent of 101 units to 200 units shall provide five of the following recreational amenities, or equivalent, as approved by the planning commission:

Two open unobstructed lawn areas of 1,000 square feet; one of the dimensions (width or depth) shall be a minimum of 50 feet.

A minimum of two (but no more than four) enclosed tot lots each with a minimum area of 500 square feet and a minimum of five different types of play equipment.

Pool and spa.

Community multipurpose room equipped with kitchen, defined areas for games, exercises, etc.

Barbecue facilities equipped with multiple grills, picnic benches, etc. The barbecue facilities shall be conveniently located throughout the site. The number of barbecue facilities and their locations shall be subject to planning commission review and approval.

Court facilities (e.g., tennis, volleyball, basketball).

Jogging/walking trails with exercise stations.

For each 100 units above the first 200 units, another set of recreational amenities as described in subsection (D)(3) above, shall be provided.

Other recreational amenities not listed above may be considered subject to planning commission review and approval.

Related recreational activities may be grouped together and located at any one area of the common open space.

Dispersal of recreational facilities throughout the site shall be required for development with multiple recreational facilities.

All recreation areas or facilities required by this section shall be maintained by private homeowners associations, property owners, or private assessment districts.

Other miscellaneous residential development standards.

Zero lot line. The dwelling unit may be placed on one interior side property line with a zero setback, and the dwelling unit setback on the other interior side property line shall be a minimum of ten feet, excluding the connecting elements such as fences, walls, and trellises. Pools, decks, garden features, and other similar elements shall be permitted within the ten-foot setback area, provided, however, no structure, with the exception of fences or walls, shall be placed within easements required below. Where adjacent zero lot line dwellings are not constructed against a common lot line, the builder or developer must provide for a perpetual wall maintenance easement of five feet in width along the adjacent lot and parallel with such wall.

Usable yard area. For single-family detached and semi-detached development, a minimum area of 400 square feet (with a minimum horizontal dimension if any direction of 15 feet) usable rear yard area that is graded flat and level shall be provided between the rear of the primary dwelling unit and the rear property line. If the development is located in an area with slopes or grade differences between properties, then this flat area shall be located at the top or toe (base) of nonretained slope banks. If there are retaining walls, this usable yard area shall be at the top and behind, or at the toe and in front, of a retaining wall in areas of hilly or sloped terrain where grading is being designed to minimize alteration to the natural land form, usable open space may be provided in the form of decks, patios, balconies, or some similar form of built structure designed to fit the natural topography rather than as graded level yard area.

Visitor parking. For projects with private streets or driveways, visitor parking required by chapter 17.64 (Parking and Loading Standards) shall be provided in off-street visitor parking bays within 150 feet of all dwelling units. Visitor parking shall be clearly delineated through proper signage. Signage may include, but is not limited to, pavement marking, freestanding signs designating the stalls as visitor parking, and directory signs guiding visitors to the visitor parking area.

Driveway depth/width. All lots within single-family detached and semi-detached residential developments shall have driveways designed to accommodate the parking of at least one automobile in a garage and one automobile on the driveway in a manner that does not obstruct sidewalks or streets. Driveways shall have a minimum depth of 19 feet and width of 18 feet. Drive approaches shall be developed per city standards.

Amenities. To enhance the quality of life for multi-family development, additional amenities shall be required as follows:

Laundry facility. Each unit shall be provided with a hookup for a washing machine and clothes dryer in the interior of the dwelling, or common laundry facilities shall be provided and equipped with washing machines and clothes dryers at a rate of one washing machine and clothes dryer per five units. Common laundry facilities should be conveniently located for all residents within the complex. Common laundry facilities can be within freestanding buildings, attached to dwelling units, or within the recreation room. The design of the common laundry facilities shall be architecturally compatible with the dwellings.

Roofing materials.

New development within residential zones shall have tile roofing material made of clay, ceramic, concrete, slate, or composite materials such as fiber-glass. Metal tile roofing may be considered if it is demonstrated by the applicant that the general appearance of it (such as the surface finish, color, and texture) are equivalent to the general appearance of, for example, concrete tile.

Existing development within residential zones may be re-roofed with a roofing material that is consistent with the architectural theme of the primary structure. At the discretion of the planning director, exceptions to this standard may be made for sustainable roof designs such as green roofs.

Additions to existing residential structure(s) and new accessory structures shall have roofing material that matches the roofing material on the existing residential structure(s). The exceptions is that a patio cover addition with a flat roof may have composite rolled roofing.

Roof-mounted air conditioning units. Replacement of existing permitted roof mounted air conditioning units that are located on residential development may be permitted. All other proposed roof mounted air conditioning units shall be placed entirely out of public view as seen from a public street, sidewalk, or regional/community multi-purpose trail.

Slope planting. Slope banks five feet or greater in vertical height and of 5:1 or greater slope, but less than 2:1 slope, shall be, at minimum, irrigated and landscaped with groundcover for erosion control. Slope banks five feet or greater in vertical height and of 2:1 or greater slope shall be landscaped and irrigated for erosion control and to soften their appearance as follows: one 15-gallon or larger size tree per each 150 square feet of slope area, one one-gallon or larger size shrub for each 100 square feet of slope area, and appropriate groundcover. In addition, slope banks in excess of eight feet in vertical and of 2:1 or greater slope shall also include one five-gallon or larger size tree per each 250 square feet of slope area. Trees and shrubs shall be planted in staggered clusters to soften and vary slope plane. Slope planting required by this section shall include a permanent irrigation system to be installed by the developer prior to occupancy. Maintenance by a homeowners' association may be required by the planning commission on a case-by-case basis.

Waterways. Waterways, if preserved onsite, adjacent, or nearby shall be incorporated into the overall design of the development and count towards open space percentage requirements.

10.

Street connectivity. All new developments within single-family zones shall adhere to the following street connectivity standards:

New streets shall connect to adjacent developments where streets exist, as practicable;

Cul-de-sacs and dead-end roads shall be prohibited; and

New developments with entry and exit gates shall be prohibited.

Special streetscape. It is the intent of this section to create streetscape standards for landscape, building, and parking setbacks that help to identify the function of streets and to improve the scenic quality of the community. Table 17.36.010-3 sets forth the minimum setbacks based on street classification in the general plan circulation plan. These setbacks shall be required of all new developments that contain or abut any one of the street classifications listed in the table. Setbacks shall be measured from the face of the ultimate curb location.

TABLE 17.36.010-3 RESIDENTIAL STREETSCAPE SETBACK STANDARDS
Land Use and Street Classification	Building Setback	Parking Setback	Landscape and Wall Setback ⁽¹⁾
Detached Single-Family Residential
Arterial Roadway/Boulevard	45 ft ⁽³⁾	18 ft	20 ft average 18 ft minimum
Collector Street/Bicycle Corridor	35 ft ⁽³⁾	15 ft	18 ft average 15 ft minimum
Attached Single-Family Residential and Multi-Family Residential
Arterial Roadway/Boulevard ⁽²⁾	45 ft	30 ft	45 ft average 30 ft minimum ⁽²⁾
Collector Street/Bicycle Corridor ⁽²⁾	35 ft	25 ft	35 ft average 25 ft minimum ⁽²⁾

Table Notes:
(1)	On existing lots of record, parcels less than 175 feet in depth need not provide a setback of landscaping greater than 20% of the depth of the property (excluding right-of-way).
(2)	Add 10 feet to the setback when located within the M, MH, and H zones.
(3)	These setbacks shall not apply to accessory structures and shall only apply to the primary residence and room additions.

FIGURE 17.36.010-1 SPECIAL STREETSCAPE SETBACK FOR SINGLE-FAMILY RESIDENTIAL

FIGURE 17.36.010-2 SPECIAL STREETSCAPE SETBACK FOR MULTI-FAMILY RESIDENTIAL

(Ord. No. 1000 § 4, 2022; Ord. No. 1015 § 3, 2023; Ord. No. 1017 § 5, 2023; Ord. No. 1023, 1/17/2024)

§ 17.36.020 Development standards for two units in single-family residential zones.

Purpose. This section provides objective zoning and design standards for the development of residential units pursuant to Senate Bill (SB) 9. Development pursuant to this section does not require discretionary review or a hearing and is processed ministerially through a plan check/zoning clearance.

Applicability. SB 9 projects shall only be developed in single-family residential zones. For purposes of this section, the following zones are considered single-family residential zones:

Very Low Residential (VL).

Low Residential (L).

Hillside Residential (HR).

General Standards. All development pursuant to SB 9 shall comply with the following objective standards:

Eligibility requirements of Government Code section 65852.21(a) shall be satisfied.

Except where superseded by SB 9 or this section, development shall comply with the objective development standards of the zone in which the lot is located.

Access to any unit shall not be across an easement that restricts such access.

More than 25 percent of the exterior structural walls of an existing dwelling shall not be demolished unless the site has not been occupied by a tenant in the last three years.

The lot shall contain no more than one pedestrian path connected to the public right-of-way or private street.

The development shall contain no exterior stairways except those leading from grade to the first floor.

Off-street parking shall be provided in accordance with the following standards:

A minimum of one off-street parking space shall be provided for each residential unit.

No off-street parking is required if either of the following apply:

The lot is located within one-half mile walking distance of either: a high-quality transit corridor as defined in Public Resources Code section 21155(b) or a major transit stop as defined in Public Resources Code section 21064.3.

Additional Standards for New Construction. In addition to the standards of Subsection C, the standards of this Subsection apply if one or both residential units are new construction:

Maximum unit size shall be 800 square feet.

No residential unit shall exceed a building height of one story.

No residential unit shall exceed a building height of 16 feet.

Each residential unit shall have a minimum setback of four feet from side and rear property lines except as allowed by Government Code section 65852.21.

If the residential units are built as separate buildings, the following standards shall apply:

The buildings shall be located one in front of the other in relation to the street;

The front building shall be at least as wide and as tall as the rear building; and

The front building shall be positioned such that the rear building is not visible from the street when viewed from directly in front of the property.

If the residential units are built as a single building, one residential unit shall have a door facing the street and one residential unit shall have a door facing a side or rear property line.

Additional Standards for Conversion of an Existing Dwelling. In addition to the standards of Subsection C, the standards of this section apply if an existing dwelling will be fully or partially retained:

Maximum unit size shall be 800 square feet.

The existing setbacks shall be maintained when converting or substantially redeveloping an existing structure to a two-unit residential development, except that additions to the existing dwelling shall have a minimum setback of four feet from side and rear property lines.

Additions to the existing dwelling shall not increase the building height beyond the allowable maximum of the respective base zoning district.

If two residential units are located in the same building, one residential unit shall have a door facing the street and one residential unit shall have a door facing a side or rear property line.

Additional Standards for Urban Lot Split Projects. In addition to the standards of subsections C, D, and E as applicable, the standards of this subsection apply if the residential units will be located on lots created by an urban lot split.

Each lot created by the parcel map shall be used solely for residential uses.

No lot created by the parcel map shall have more than two residential units, inclusive of any accessory dwelling unit (ADU) or junior accessory dwelling unit (JADU). No ADU or JADU shall be allowed on any parcel created by an urban lot split if the subdivider uses the authority provided under Government Code section 65852.21.

If the boundary line between the lots created by the parcel map is perpendicular to the front lot line, the units shall be subject to the following standards:

The buildings nearest the street on each lot created by the parcel map shall have no more than one residential unit with a door facing the street.

Exceptions. The planning director shall approved an exception to any of the standards specified in this section upon determining that complying with the standard would physically preclude the construction of up to two residential units or would physically preclude either of the two residential units from being 800 square feet in floor area.

Review. The building official, city engineer, and fire marshal shall review applications to determine whether a proposed development would cause a specific adverse effect to public health, safety, and welfare, as defined in Government Code section 65589.5. If so, the building official shall make a written finding in support of his or her decision to deny the application.

Denial. The building official shall deny an application for an SB 9 project upon making both of the following findings in writing based upon a preponderance of evidence:

The proposed housing development project would have a specific, adverse impact upon the public health and safety or the physical environment as defined and determined in Government Code section 65589.5(d)(2).

There is no feasible method to satisfactorily mitigate or avoid the specific, adverse impact.

Covenants Required. A property owner seeking to develop units on a single-family residential property, pursuant to the standards of SB 9 and the standards of this section, shall execute and record the following covenants against the subject property with the San Bernardino County assessor-recorder-clerk and provide a copy to the city:

Short-term rental of a residential unit for a period of less than 31 days shall be prohibited;

Nonresidential uses on the site shall be prohibited;

Any subsequent urban lot split of land that was previously subdivided with an urban lot split shall be prohibited; and

The owner of the property of which an urban lot split is proposed shall sign an affidavit stating that the owner intends to occupy one of the housing units as their principal residence for at least three years from the date of the approval of the urban lot split.

(Ord. No. 1015 § 3, 2023; Ord. No. 1023, 1/17/2024)

§ 17.36.030 Urban lot splits in single-family residential zones.

Purpose. This section provides objective standards for urban lot splits on single-family residential zone lots pursuant to SB 9.

Applicability.

This section applies to single-family residential zone lots. For the purposes of this section, the following zones are considered single-family residential zones:

Very Low Residential (VL).

Low Residential (L).

Hillside Residential (HR).

An urban lot split is prohibited on a lot previously subdivided by an urban lot split pursuant to SB 9. In addition, an urban lot split is prohibited on a lot if the lot's owner or any person acting in concert with the owner of such lot has previously subdivided an adjacent lot pursuant to SB 9.

An urban lot split shall not require discretionary review or a hearing and is approved ministerially by the city engineer through a parcel map application. This section is exempt from the application and hearing requirements described in chapter 16.20 (Tentative Parcel Maps — Four or Less Parcels) and section 16.22.090 (Approval by City Council).

Subdivision Standards. An urban lot split pursuant to this section is subject to the following standards.

Eligibility requirements of Government Code section 66411.7(a) shall be satisfied.

A minimum lot size of one acre per dwelling unit is required for any proposed lot which does not have access to a public sewer.

Each lot created by the parcel map shall have a minimum area of 1,200 square feet.

The newly created lots shall not be smaller than 45 percent of the area of the original lot.

Each newly created lot must have access to a public street.

Lot lines shall be:

Straight lines, unless there is a conflict with existing improvements or the natural environment;

Generally parallel to the street when facing the street or be at right angles perpendicular to the street on straight streets, or radial to the street on curved streets; and

Within appropriate physical locations that do not bisect buildings and are contiguous with existing zoning boundaries.

Exceptions. The city engineer shall approve an exception to any of the standards satisfied in this section upon determining that complying with the standard would physically preclude the construction of up to two residential units or would physically preclude either of the two residential units from being 800 square feet in floor area.

Review. The building official, city engineer, and fire marshal shall review applications to determine whether there is a specific adverse effect to public health, safety, and welfare.

Denial. The city engineer shall deny an urban lot split upon making both of the following findings in writing based upon a preponderance of evidence.

There is no feasible method to satisfactorily mitigate or avoid the specific, adverse impact.

Covenants Required. A property owner seeking to develop units on a single-family residential property, pursuant to the standards of SB 9 and the standards of this Section, shall execute and record the following covenants against the subject property with the San Bernardino County assessor-recorder-clerk and provide a copy to the city:

Short-term rental of a residential unit for a period less than 31 days shall be prohibited;

Nonresidential uses on the site shall be prohibited;

Any subsequent urban lot split of land that was previously subdivided with an urban lot split shall be prohibited; and

The owner of the property for which an urban lot split is proposed shall sign an affidavit stating that the owner intends to occupy one of the housing units as their principal residence for at least three years from the date of the approval of the urban lot split.

(Ord. No. 1015 § 3, 2023; Ord. No. 1023, 1/17/2024)

§ 17.36.040 Development standards for industrial zones.

Purpose and applicability. The purpose of this section is to establish minimum development standards that are unique to development projects within the industrial zones. Development standards in this section apply to all land designated on the zoning map within an industrial zone.

Industrial zones. As identified in chapter 17.26 (Establishment of Zones), the city includes two Industrial Zones: Neo-Industrial (NI), and Industrial Employment (IE).

Industrial site development standards. General site development standards for industrial zones are listed in Table 17.36.040-1 (Development Standards for Industrial Zones). These development standards supplement the development standards in article IV (Site Development Provisions) that apply to all zones (e.g., parking, signs, landscaping, and lighting).

TABLE 17.36.040-1 DEVELOPMENT STANDARDS FOR INDUSTRIAL ZONES
Development Standard/Zone	NI	IE
Lot area (minimum) ⁽¹⁾	0.5 ac	5 ac or 2 ac ⁽²⁾
Lot width (minimum) ⁽³⁾	100 ft	100 ft
Min. Setback (ft.) ⁽⁴⁾
Front yard (and Street Side Yard)	See Table 17.36.040-2
Major Arterial and Special Boulevard	45 ft	45 ft
Secondary	35 ft	35 ft
Local/Collector	25 ft	25 ft
Interior Side yard	5 ft ⁽⁵⁾	5 ft ⁽⁵⁾
Rear yard	0 ft ⁽⁵⁾	0 ft ⁽⁵⁾
Distance Between Buildings
Primary buildings	Must meet current building code requirements
Accessory buildings	Must meet current building code requirements
Max. Building Height (ft.)
Primary buildings ⁽⁷⁾	35 feet at the front setback line ⁽⁶⁾
Primary buildings ⁽⁷⁾	45 ft	65 ft
Accessory buildings—Detached	25 ft	25 ft
Accessory buildings—Attached Maker Space	35 ft	35 ft
Max. Floor Area Ratio (Ratio of building floor area to lot square footage)
Floor area ratio	0.6 ⁽⁸⁾	0.6 ⁽⁹⁾
Max. Building Footprint (sq. ft.)
Primary Building ⁽¹⁰⁾	200,000	450,000
Accessory Building—Detached	5,000	10,000
Accessory Building—Attached Maker Space	30,000	30,000
Min. Open Space (minimum percentage of open space per parcel or project)
Open space/landscape area	10%⁽¹¹⁾	10% ⁽²⁾ ⁽¹¹⁾/5%⁽¹¹⁾
Performance standards (see Chapter 17.66)	A/B	B/C ⁽²⁾

Table notes:
(1)	Condominium lots. Condominium lots and lots within an approved master planned development are exempt from required minimum parcel size and dimension requirements.
(2)	The following applies within 1,000 feet of Arrow Route: minimum 2-acre lot area; 10% minimum landscape area; and the "B" level performance standards (chapter 17.66).
(3)	Setbacks shall be the minimum required under the city's currently adopted building code.
(4)	Setback shall be increased to 45 feet when abutting a residential property line or adjacent to Interstate 15.
(5)	See Table 17.36.040-2 for parcels abutting special boulevards as indicated in Figure 17.36.040-1 (Special Streetscape Requirements).
(6)	Buildings used for industrial uses that exceed 35 feet in height shall be set back an additional one foot from the front setback line for each one foot of building height up to a maximum setback of 70 feet. The portion of the building used for offices are not subject to this requirement.
(7)	Heights over 75 feet may be permitted with a conditional use permit.
(8)	For hotels and motels, the maximum floor area ratio is 1.0 (100 percent).
(9)	Parking structures in the Neo-Industrial (NI) and Industrial Employment (IE) Zones are exempt from floor area ratio requirements.
(10)	Conditional use permit approval by the city council is required for all industrial buildings larger than 75,000 square feet in gross floor area. See section 17.20.060 (Conditional use permit). A master plan is required for all industrial buildings larger than 450,000 square feet in gross floor area.
(11)	Waterways preserved count towards overall common open space requirements.

Other miscellaneous industrial development standards.

Special streetscape. Future development and redevelopment within industrial areas shall be consistent with the special streetscape standards listed in Table 17.36.040-2 (Streetscape Setback Requirements) and as depicted in Figure 17.36.040-1 (Special Streetscape Requirements).

TABLE 17.36.040-2 STREETSCAPE SETBACK REQUIREMENTS
Street Type	Average Depth of Landscape ^{(1, 2)}	Building Setback ^{(2, 3, 4, 5)}	Parking Setback ⁽⁵⁾
Arterial Roadway/Boulevard	45 ft	45 ft	25 ft
Collector Street	35 ft	35 ft	20 ft
Bicycle Corridor/Local Street	25 ft	25 ft	15 ft

Table notes:
(1)	The average depth shall be uninterrupted from the face of curb, except for sidewalks, pedestrian hardscape, plazas and courtyards, and monument signs.
(2)	Parcels less than 225 feet in depth from the ultimate curb face on special boulevards are not required to provide an average depth of landscaping or building setback greater than 25 feet or 20% the depth of the property, whichever is greater.
(3)	As determined from ultimate face of curb.
(4)	Average depth of landscaping must still be provided.
(5)	Setback may be increased based on building height. See Table 17.36.040-1.

Accessory maker spaces. Accessory maker spaces are required in or adjacent to all new buildings that exceed 200,000 square feet in gross floor area in the Neo-Industrial (NI) and Industrial Employment (IE) Zones, subject to the following standards:

A minimum gross floor area of 3,000 square feet and a maximum gross floor area of 30,000 square feet.

Accessory maker spaces shall face main arterial roads adjacent to the site.

Maker space building frontages shall include either an at-grade loading area or an above-grade loading area on a terraced entry.

FIGURE 17.36.040-1 SPECIAL STREETSCAPE REQUIREMENTS

Special building height standards. Building height limits shall not exceed the height limits prescribed in the LA/Ontario International Airport Compatibility Plan. For areas within the High Terrain Zone, the building height limit shall be 70 feet. Buildings or structures greater than 70 feet in height within the High Terrain Zone are subject to the ONT-IAC Project Notification Process and require a Federal Aviation Administration (FAA) exception (Obstruction Evaluation - Form 7460). In cases where the LA/Ontario International Airport Compatibility Plan permits heights greater than 70 feet, building height limits shall be limited to maximum of height of 75 feet, unless a conditional use permit is granted permitting heights greater than 75 feet.

Special height exceptions for ancillary equipment. Within the Industrial Employment (IE) Zone, height exceptions may be granted for ancillary equipment with special design and landscape considerations as follows:

Maximum 90 feet with approval of a minor exception with the additional findings that the ancillary equipment is designed in a manner that integrates well within the subject site and existing and/or proposed landscaping will buffer the views of ancillary equipment from designated view corridors.

Maximum 120 feet with approval of a conditional use permit with the additional findings that the ancillary equipment is designed in a manner that integrates well within the subject site and existing and/or proposed landscaping will buffer the views of ancillary equipment from designated view corridors.

Interim uses. Certain industrial properties may be vacant without any immediate plans for site development. In these instances, the properties may be utilized for a defined list of interim uses for a limited time period as specified below. The uses permitted within this section are supplemental to the uses listed in chapter 17.30 (Allowed Land Uses by Base Zone).

Permitted interim uses include agricultural crops, roadside stands, farmers market, community garden, and private parks and picnic areas.

Other uses intended to be temporary that are allowed by right on a permanent basis in the associated zone, upon the determination of the planning director.

Minor use permit required. Prior to the establishment of an interim use, a minor use permit shall be approved.

Time period. The maximum time period for an interim use is five years.

Conditions. At a minimum, the conditions should include an agreement between the city and the applicant stipulating timing, installation of permanent improvements and buildings, and/or restoration of the site to its original condition. At the end of five years, the use shall be removed or the site developed in accordance with the full development regulations of any adopted plan.

Interim use standards. The following standards shall apply in all industrial areas for interim uses:

The minimum streetscape and parking setback requirement shall be contiguous with the ultimate right-of-way line, but in no case less than ten feet.

No minimum landscape coverage requirements are required, except where necessary for screening purposes as determined by the planning director.

All parking and storage areas shall be paved with slag, crushed aggregate, asphaltic concrete, concrete, or similar materials. The location, number, and design of the parking and storage areas shall be in accordance with code requirements.

All parking and storage areas, and other interim uses which require screening as determined by the planning director, shall be screened from public view through a combination of landscaping and fencing. Fencing may include a six-foot chain-link fence with slats, masonry or concrete, wood, or decorative metal. Screening must be maintained in good condition at all times.

Landscaping required for screening purposes shall include 15-gallon trees and five-gallon shrubs to provide a dense landscape buffer to afford maximum screening from the public view, satisfactory to the planning director.

Rail service. If rail service is needed for properties which adjoin existing or proposed lead or spur lines, the following rail service access standards, unless modified by the rail service provider or the public utilities commission, shall apply: Rail crossings and any spur construction must be approved by the rail service provider and the public utilities commission. The following rail service standards, unless modified by the railroad or the public utilities commission, shall apply:

Minimum easement width for a lead line, single track shall be 32 feet.

Minimum easement width for a double rail track shall be 41 feet.

The minimum radius of curvature for a track shall be 180 feet.

The maximum gradient along spur tracks shall not exceed two percent.

Dock height shall be no less than 4.5 feet above the top of the spur track.

Road crossings at grade must be avoided wherever possible.

Spur trackage is not permitted along any frontage between a building and a public right-of-way and must be confined to the side or rear yard area of the building that the rail spur serves.

Rail loading areas shall be screened from view from the public right-of-way by a wall that matches the architecture, materials, colors, etc. of the building that the rail spur serves.

Spur tracks shall not encroach onto/across any required parking stalls. Spur tracks shall not encroach across drive aisles for automobile/heavy truck and/or emergency vehicle access except when it is necessary to connect the main rail line with the rail loading area.

Lot divisions and building layouts for properties which adjoin existing or proposed lead and spur lines shall be done in a manner to ensure full potential of future rail access and use and should not preclude rail access to other properties adjacent to such rail lines. Subdivisions, which could reduce a property's ability to accommodate potential rail served developments, may not be authorized.

Building design shall include rail service features to ensure the potential use of available spur lines.

Finished floor elevations and dock height door or "kick out" wall panels shall be provided in all properties abutting rail lines.

The above-referenced rail service development standards may be amended or deleted on a site-by-site basis during the development review process. The following must be determined by the planning commission in order to authorize any modification of the rail service standard:

That the installation of a lead or spur track cannot be accomplished due to physical constraints on or adjacent to the project site; and

ii.

Other existing or potential rail service properties will not be negatively affected in their ability to accommodate rail service activity as a result of modifications to the standards.

Equipment screening. The following screening standards shall apply to equipment such as HVAC units, storage tanks, ducting, etc.:

All roof, wall, and ground mounted equipment shall be screened and not visible from the public right-of-way within the Neo-Industrial (NI) Zone.

Wherever possible, all roof, wall and ground mounted equipment shall be screened and not visible from the public right-of-way within the Industrial Employment (IE) Zone.

The visibility of any equipment from the public right-of-way shall be determined by "line-of-sight" and measured from a point that is six feet above the finished surface of the centerline of the public right-of-way, e.g. street.

All screening of roof mounted equipment shall be accomplished with a parapet wall that is consistent and compatible with the architecture, materials, colors, etc. of the building. Where a parapet wall is not possible, then a screen shall be provided to enclose the roof mounted equipment. This enclosure is exempt from the building height requirement established in Table 17.36.040-1 (Development Standards for Industrial Zones). Where roof mounted mechanical equipment and/or ductwork projects less than 18 inches above the roof or roof parapet it shall be painted consistent with the color scheme of the building.

Design standards. The following design standards apply to all new developments in the Neo-Industrial (NI) and Industrial Employment (IE) Zones:

Site design standards.

General site design.

•	Site elements such as buildings, parking areas, driveways, sidewalks, and outdoor recreational spaces must be arranged to emphasize the aesthetically pleasing components of the site (e.g., landscaping and the superior architectural design of office building element (refer to b. (Building design standards)) and to screen less attractive elements (e.g., service facilities, loading docks, outdoor storage, equipment areas, and refuse enclosures) through the proper placement and design of buildings, screen walls, and landscaping.
•	Sites shall have internal sidewalks that connect to sidewalks along public streets to create pedestrian connections.
•	Loading dock areas shall be located and designed so that they do not face toward (and are not visible from) any adjacent public right-of-way such as a street. These areas shall be screened with walls or fences and landscaped. See sections 17.48.050(E) and 17.56.060(L).
•	All refuse, storage, and equipment areas placed outside of a building shall be screened from adjacent public rights-of-way and uses.

ii.

Block network parameters for public streets.

•	Intersection spacing along arterial edges shall be between ⅛ mile and ¼ mile with at least one mid-block intersection between intersecting arterials and rail, flood control, utility or freeway corridors.
•	Intersection spacing inside arterial/arterial blocks bounded by arterials shall be a minimum of 200 feet and a maximum of 1,320 feet.
•	Buildings greater than 450,000 sq. ft. in size shall have public streets on at least three sides.
•	A minimum of one public street shall run parallel with and within 500 feet of rail (excluding spurs), flood control, utility, or freeway corridors. The parallel street shall run through the block. Street crossings at intersecting corridors shall be established on a case-by-case basis based on feasibility and needs by the city engineer.
•	Intersections along arterials shall be aligned with existing/proposed intersections on the opposite side of the arterial where possible and meet minimum design standards for offsets or clearance from adjacent corridors as required by the city engineer.
•	Two distinct points of connection shall be provided through an internal block network to the arterial street network for every industrial parcel.

iii.

Parking location and design.

•	Surface parking shall be located to the side or to the rear of principle buildings to the greatest extent feasible.
•	Surface parking stalls for employees and guests may incorporate shade structures that are capable of supporting solar/photovoltaic array systems with a minimum clearance height of 12 feet.
•	The shade structures shall not encroach into the required access lanes.
•	The applicable tree and landscaping standards are not required in the sections of the parking areas where solar arrays systems are placed. See section 17.56.060(L)(2) (Exception for Solar Collectors).
•	All new development within the Neo-Industrial (NI) and Industrial Employment (IE) Zones requires a parking management plan, see section 17.64.070 (Parking Management Plan).

iv.

Open space.

•	An outdoor seating/break area is required for every proposed and potential office area of a building.
•	On-site open space areas shall contain an outdoor seating/break area with seating designed to allow a variety of sitting environments.
•	Outdoor seating areas shall provide shade under a suitable structure and wind protection using landscaping or transparent screening structures.
•	Outdoor seating areas shall be easily accessed from the lobby or interior break rooms and placed at the corner of the building or along the side of a building facing a public street.
•	Outdoor seating areas are included within the minimum open space requirement in Table 17.36.040-1 (Development Standards for Industrial Zones).

Landscaping, screening, and street trees.

•	All new industrial developments shall adhere to the standards in chapter 17.56 (Landscaping Standards) in addition to the standards provided below. In the event of a conflict, the provisions of this section shall apply. Landscaping shall be provided along the public streets and sidewalks to define the street edge, buffer pedestrians from vehicles, and provide shade.
•	All new trees planted within the public right-of-way or to screen the front, side or rear of a building, and to screen the building from Interstate 15 shall be a minimum 24-inch box and planted 25 – 30 feet apart.
•	Trees shall be selected and planted to provide shade for walkways, outdoor seating areas, parking areas etc. and for their ability for filtering particulate matter and other pollutants from the air.
•	Walls and fences used to provide screening of loading facilities, outdoor trash receptacles, utility equipment, etc. must be solid and designed with materials and finishes that are consistent with and complimentary to the design of the primary buildings. Fences used for security purposes or around parking areas shall consist of wrought iron, tubular steel, or similar material. The use of chain-link is prohibited. Landscape materials as required in accordance with chapter 17.56 (Landscaping Standards) may compliment the requirements for screening, but landscaping without a screen wall or fence does not meet the minimum screening requirement of this section.
•	When redevelopment occurs, new public streets as required by the city engineer shall be designed in compliance with the city's Complete Streets policies, public sidewalks along the frontage of the property being developed are required.
•	All new sidewalks shall be a minimum of six feet or wider as designated by the city engineer based on existing or planned adjacent land uses to ensure compliance with the city's Complete Streets policies, separated from the curb by a planted parkway, and installed parallel to the property line or curb. Meandering sidewalks along any frontage are prohibited.

Building design standards.

Building orientation and placement.

•	Buildings shall have articulated and transparent frontages along a minimum of 50 feet on both sides of the building that define the corner.
•	Office and administration buildings associated with an industrial use shall be placed at the corner of a building at the intersection of two public streets and/or a main arterial road. The building corner shall have a prominent, vertical structural element (e.g. a tower) that projects no more than 15 feet above the maximum allowable height of the building and that occupies a maximum of five percent of the building roof area. In addition, raised parapets with enhanced decorative treatment such as cornices or crenellations are permitted not to exceed eight feet above the maximum allowable height of the building. If an office or administration building is located at the intersection of two arterial streets the height of the tower or raised parapets may be increased an additional 25 percent.
•	The primary entrance to accessory maker spaces and an office/administration building must face the corner or an adjacent main arterial road.
•	Where feasible, equipment, electrical, and service rooms shall be placed within the footprint of the building, i.e. inside the building, or screened so that it is not visible from the public right-of-way.

ii.

Building facade articulation.

•	Primary building entries shall be readily identifiable and well-defined using projections, recesses, columns, roof structures, or other design elements.
•	All elevations of a building's facade shall include modulation and articulation of the wall plane and roof line, proportionate to the height and length of the building. Exceptions to this requirement are the wall planes at the dock areas and the rear elevation of the building.
•	All elevations of a building's facade must have vertical or horizontal variations in color, texture, material, and ornamentation.
•	The office component of building facades must contain offset or recessed structural bays, and projecting elements such as colonnades or bay windows.
•	Shade elements such as canopies, awnings, arcades, and overhangs shall be provided over all windows, and at all pedestrian entry points, along the front elevation, any street-facing elevation, and office portions of the building.
•	Roofs shall be designed as an integral component of building form, mass, and facade, particularly along the front and office portions of the building. Building form shall be enhanced by sloped or offset roof planes, eave heights, and rooflines.

iii.

Materials and detailing.

•	The front and office portions of buildings must be constructed of high-quality materials, including, but not limited to, brick, stone, textured cast stone, tinted masonry units, concrete, glass, and metal siding.
•	The following materials are prohibited along the front and office portions of the building:
	(1)	Unadorned, plain or painted concrete block or panels;
	(2)	Reflective glass; and
	(3)	Vinyl, fiberglass, asphalt, or fiberboard siding.
•	Where feasible, the industrial/warehousing portion of the building must include a variety of materials and architectural elements to break up the linear planes of these building. Ideally, the building's design and architecture must express the nature of the industrial activity within, in keeping with the other requirements of this section and while respecting the functionality of the use within the building.

iv.

Door and window openings.

•	For office portions of principle buildings, window and door openings must comprise at least 60 percent of the total area of exterior walls facing a public street.
•	These windows must be clear or translucent to improve visibility, add visual interest, and allow light into interior spaces.

Lighting.

•	Decorative lighting fixtures shall be provided with a minimum one-foot candle illumination level above that of surrounding parking lots at vehicle driveways and driveway entry/exits, pedestrian pathways, plazas and courtyards, and other activity areas.
•	Building and landscape accent up-lighting shall be incorporated into the lighting plan for the development site, with a focus along the front and office portions of the building.
•	All exterior lighting shall be shielded to prevent glare and light trespass onto adjacent properties and streets.
•	Lighting systems shall be architecturally compatible with surrounding buildings to express the unique character of the area.

(Ord. No. 1000 § 4, 2022; Ord. No. 1015 § 3, 2023)

§ 17.36.050 Development standards for open space zones.

Purpose and applicability. The purpose of this section is to establish minimum development standards that are unique to development projects within open space zones. Development standards in this section apply to all land designated on the zoning map within an open space zone.

Open space zones described. As identified in chapter 17.26 (Establishment of Zones), the city includes four open space zones: Open Space Conservation (OSC), Hillside Residential (HR), Parks (P), Flood Control/Utility Corridor (FC/UC).

Open space site development standards. General site development standards for open space zones are listed below. These development standards supplement the development standards in article IV (Site Development Provisions) that apply to all zones (e.g., parking, signs, landscaping, lighting).

Open Space Conservation (OSC) Zone development standards. All development within the open space zones shall comply with the following criteria:

Minimize alteration to the natural landform.

Protect areas capable of replenishing groundwater supplies.

Protect the natural drainage of the area.

Protect waterways from indiscriminate erosion and pollution.

Protect lands having biological significance, especially riparian (water-related) areas and their associated woodland vegetation.

Protect areas with significant native vegetation and habitat value.

Protect natural areas for ecologic, educational, and other scientific study purposes.

Hillside Residential (HR) development standards. All development within the Hillside Residential zone shall comply with the development standards of the Very Low (VL) Residential Zone. See Table 17.36.010-1A (Development Standards For Residential Zones) for standards.

Flood Control/Utility Corridor (FC/UC) Zone development standards. All development within the Flood Control/Utility Corridor Zone shall comply with the following criteria:

Flood control development standards.

Natural features such as trees, groves, and substantial physical features are to be preserved, wherever feasible. Natural vegetation will be retained so as to anchor soil in place and prevent erosion and sedimentation.

ii.

When removal of vegetation is necessary and grading is to be undertaken, it shall be done in a manner, which will minimize soil erosion. Seeding and mulching or other stabilization measures are to be used to protect the disturbed land following construction.

iii.

No topsoil may be removed from the site except for that area to be covered by improvements. The topsoil from such areas is to be, if practical, redistributed on the site to provide a suitable base for seeding and planting.

iv.

Any fill proposed to be deposited in the floodway must be protected against erosion by riprap, vegetation cover, or bulkheading. No fill may be permitted which, acting alone or in combination with existing or future uses, affects the capacity of the floodway or unduly increases flood heights.

Those criteria listed in section 17.36.050(C)(3) related to structures shall be complied with.

vi.

Any structures or land outside the Flood Control/Utility Corridor Zone which could be subject to flood inundation, as depicted on the Federal Insurance Flood Rate Maps or otherwise by the city engineer, shall comply with flood protection measures as outlined in title 19 of this code.

vii.

No structure shall become a debris-catching obstacle.

Utility corridor development standards:

Buildings shall not be designed nor used for human habitation unless expressly permitted by this chapter.

ii.

All buildings shall be designed for compatibility with surrounding development relative to materials, height, size, scale, and setbacks.

iii.

Any development shall include provisions for landscaping, wind or water erosion control, and screening, if necessary.

Additional improvements. The planning director may, through the development review process, require additional improvements to a development in any one of the open space zones, if it is needed for the protection of the public health, safety, or general welfare.

Height limit. The maximum building height within the Open Space Zone shall be the same maximum building height of the adjoining parcels. Where the Open Space Zone adjoins more than one zone, the maximum building height for the Open Space Zone shall be consistent with the lowest height limit of the adjoining zones.

(Ord. No. 1000 § 4, 2022; Ord. No. 1015 § 3, 2023)