Table 3-1
Mixed-Use (X) Districts
| |
---|---|
Symbol
|
District Name
|
MX1
|
Village Center Mixed-Use
|
MX2
|
Neighborhood Mixed-Use
|
MXR
|
Riverfront Mixed-Use
|
GXR
|
Riverfront Office-Residential Mix
|
GX
|
Neighborhood Office-Residential Mix
|
NX
|
Residential Mix
|
Table 3-2
X District Building Types
| |||||||
---|---|---|---|---|---|---|---|
•
—
|
= permitted
= prohibited
| ||||||
District
| |||||||
Building Type
|
MX1
|
MX2
|
MXR
|
GXR
|
GX
|
NX
|
Regulations
|
Storefront
|
•
|
•
|
—
|
—
|
—
|
—
|
§ 475-303
|
Commercial cottage
|
—
|
•
|
—
|
—
|
•
|
—
|
§ 475-304
|
General building
|
—
|
—
|
—
|
—
|
•
|
•
|
§ 475-305
|
Riverfront building
|
—
|
—
|
•
|
•
|
—
|
—
|
§ 475-306
|
Row building
|
—
|
—
|
•
|
•
|
•
|
•
|
§ 475-307
|
Civic building
|
—
|
•
|
•
|
•
|
•
|
•
|
§ 475-308
|
Table 3-3
Storefront Building Regulations
| ||||
---|---|---|---|---|
Regulation
|
MX1 District
|
MX2 District
|
References
| |
BUILDING AND PARKING SITING
| ||||
1 |
Minimum primary frontage coverage (%)
|
60%
|
55%
|
See § 475-303C for allowed courtyards.
|
2 |
Primary frontage build-to zone (feet)
|
5 to 15*
|
5 to 20*
|
See § 475-302 for explanation of primary and nonprimary frontages.
*See § 475-303C for minimum streetscape area.
*See § 475-303C for allowance for outdoor dining/seating.
|
3 |
Nonprimary frontage build-to zone (feet)
|
0 to 10*
|
0 to 15*
| |
4 |
Minimum side setback (feet)
|
7.5; 15 for building abutting R District
| ||
5 |
Minimum rear setback (feet)
|
10; 25 for building abutting R District
| ||
6 |
Maximum site impervious coverage (%)
|
80%
|
75%
| |
Additional semipervious coverage (%)
|
15%
|
15%
| ||
7 |
Surface or accessory parking yard location
|
Rear yard, limited side yard
| ||
8 |
Allowed parking location within building
|
Permitted fully in any basement and behind required occupied
space of all other stories
|
See § 475-1502 for definition of occupied space.
| |
9 |
Minimum depth of occupied building space along primary frontage
facade (feet)
|
20; not required in any basement or half story
| ||
10 |
Refuse and recycling, utilities, and loading yard location
|
Rear only
|
See Article IX for screening regulations.
| |
11 |
Permitted driveway access location
|
Nonprimary street; 1 off primary street per 200 feet of primary
street frontage
|
See § 475-302 for driveway access exception.
| |
Permitted garage entry facade location
|
Rear, interior side, or nonprimary street facade
| |||
HEIGHT
| ||||
12 |
Overall:
|
See § 475-1502 for explanation of measuring height. Maximum height is measured along primary street frontage.
Note tower cap type allows additional limited height.
Story heights are measured floor to floor.
| ||
Minimum height (stories)
|
2
|
1
| ||
Maximum height (stories)
|
4; additional 5th story permitted with public hearing design
exception approval
|
2.5
| ||
13 |
Upper stories setback
|
Above 3 stories, minimum 15-foot depth on street facades; and
above 2.5 stories, set back minimum 50 feet of any R1 District lot
line
|
None
| |
14 |
Ground story:
| |||
Minimum height (feet)
|
14
|
14
| ||
Maximum height (feet)
|
20
|
18
| ||
15 |
All other stories:
| |||
Minimum height (feet)
|
9
|
9
| ||
Maximum height (feet)
|
14
|
12
| ||
FACADE AND CAP REQUIREMENTS
| ||||
16 |
Minimum transparency: ground-story primary frontage facades
(%)
|
70%, measured between 2 and 8 feet above sidewalk; blank wall
limitations apply
|
55%, measured between 2 and 8 feet above sidewalk; blank wall
limitations apply
|
§ 475-302 requires primary frontage treatment to turn corners.
See § 475-1502 for explanation of measuring transparency and blank wall limitations.
See § 475-1107 for administrative design exception for blank wall limitations.
|
17 |
Minimum transparency: all street facades and main parking facades
(%)
|
15%, measured per story of all stories; blank wall limitations
apply
| ||
18 |
Minimum primary frontage principal entrances
|
Principal entrances: 1 per every 60 feet of facade, recessed
between 3 and 8 feet
|
See § 475-901K for principal entryway regulations.
| |
19 |
Entrance/ground-story elevation (feet)
|
Within 1.5 of sidewalk grade along primary frontage facade
| ||
20 |
Ground-story vertical facade divisions on primary frontage facades
|
1 shadow line per every 60 of facade width
|
See § 475-901L for building articulation, including building variety.
| |
21 |
Horizontal facade divisions on primary frontage facades
|
1 shadow line within 3 feet of the top of the ground story on
any street facade
| ||
22 |
Permitted cap types
|
Parapet, flat; tower permitted
|
Parapet, flat, pitched; tower permitted
|
See § 475-309 for cap type regulations.
|
Table 3-4
Commercial Cottage Building Regulations
| ||||
---|---|---|---|---|
Regulation
|
MX2 District
|
GX District
|
References
| |
BUILDING AND PARKING SITING
| ||||
1 |
Maximum building width (feet)
|
60
|
60
|
See § 475-304C for allowed connections between buildings.
|
2 |
Primary frontage build-to zone (feet)
|
10 to 25*
|
5 to 20*
|
See § 475-302 for explanation of primary and nonprimary frontages.
*See § 475-304C for minimum streetscape area.
*See 475-304C for allowance for outdoor dining/seating.
|
3 |
Nonprimary frontage build-to zone (feet)
|
5 to 15*
|
0 to 20*
| |
4 |
Minimum side setback (feet)
|
5, 10 for building abutting R District
| ||
5 |
Minimum rear setback (feet)
|
7.5; 15 for building abutting R District
| ||
6 |
Maximum site impervious coverage (%)
|
75%
|
60%
| |
Additional semipervious coverage (%)
|
10%
|
15%
| ||
7 |
Surface or accessory parking yard location
|
Rear, limited side
| ||
8 |
Allowed parking location within building
|
Permitted fully in any basement and behind required occupied
space of ground story
|
See § 475-1502 for definition of occupied space.
| |
9 |
Minimum depth of occupied building space along primary frontage
facade (feet)
|
20 all floors; not required in any basement or half story
| ||
10 |
Refuse and recycling, utilities, and loading yard location
|
Rear
|
See Article IX for screening regulations.
| |
11 |
Permitted driveway access location
|
Alley
|
See § 475-302 for driveway access exception.
| |
Permitted garage entry facade location
|
Rear or nonprimary street facade
| |||
HEIGHT
| ||||
12 |
Overall:
|
See § 475-1502 for explanation of measuring height.
| ||
Minimum height (stories)
|
1
|
1
| ||
Maximum height (stories)
|
2.5
|
2.5
| ||
13 |
Ground story:
|
Stories are measured floor to floor
| ||
Minimum height (feet)
|
9
|
9
| ||
Maximum height (feet)
|
15
|
12
| ||
14 |
All other stories:
| |||
Minimum height (feet)
|
8.5
|
8.5
| ||
Maximum height (feet)
|
11
|
11
| ||
FACADE AND CAP REQUIREMENTS
| ||||
15 |
Minimum primary frontage ground-story transparency (%)
|
45%, measured between 2 and 8 feet above sidewalk
|
Not required
|
§ 475-302 requires primary frontage treatment to turn corners.
Blank wall limitations apply to primary frontage facades per § 475-1502.
|
16 |
Minimum transparency: All street facades (%)
|
15%, measured per story of all stories
| ||
17 |
Minimum primary frontage principal entrances
|
1 per building; stoop, minimum 4 feet wide and 3 feet deep or
porch, minimum 6 feet wide by 4 feet deep
|
See § 475-901K for principal entryway regulations.
| |
18 |
Entrance/ground-story elevation (feet)
|
Principal entrance and the ground story must be within 30 inches
of adjacent street sidewalk average elevation
Or between 30 inches and 5 with visible basement (transparency
required)
|
See § 475-1502 for measuring.
| |
19 |
Ground-story vertical facade divisions on primary frontage facades
|
None required
|
See § 475-901L, Building articulation, including building variety.
| |
20 |
Permitted cap types
|
Pitched; tower permitted
|
See § 475-309 for cap type regulations.
|
Table 3-5
General Building Regulations
| ||||
---|---|---|---|---|
Regulations
|
GX District
|
NX District
|
References
| |
BUILDING SITING
| ||||
1 |
Minimum primary frontage coverage (%)
|
60%
|
65%
|
See § 475-305C for allowed courtyards.
|
2 |
Maximum building width (feet)
|
None
|
250
|
See § 475-901L for building articulation, including building variety.
|
3 |
Primary frontage build-to zone (feet)
|
5 to 20*
|
10 to 20
|
See § 475-302 for explanation of primary and nonprimary frontages.
See § 475-305C for minimum streetscape area.
See § 475-305C for allowance for outdoor dining/seating.
|
4 |
Nonprimary frontage build-to zone (feet)
|
5 to 35*
|
5. to 35*
| |
5 |
Minimum side setback (feet)
|
5; 10, if abutting other building type
| ||
6 |
Minimum rear setback (feet)
|
25
| ||
7 |
Maximum site impervious coverage (%)
|
65%
|
65%
| |
Additional semipervious coverage (%)
|
25%
|
25%
| ||
8 |
Surface or accessory parking yard location
|
Rear limited side, center on through lot
|
Rear, center on through lot
| |
9 |
Allowed parking location within building
|
Permitted fully in any basement and behind required occupied
space of all other stories
|
See § 475-1502 for definition of occupied space.
| |
10 |
Minimum depth of occupied building space along primary frontage
facade (feet)
|
20 all full height floors; not required in any basement
| ||
11 |
Refuse and recycling, utilities, and loading yard location
|
Rear, center on through lots
|
See Article IX for screening regulations.
| |
12 |
Permitted driveway access location
|
Nonprimary street, 1 per 200 linear feet of primary street frontage
|
See § 475-302 for driveway access exception.
| |
Permitted garage entry facade location
|
Rear or nonprimary street facade
| |||
HEIGHT
| ||||
13 |
Overall:
|
See § 475-1502 for explanation of measuring height.
| ||
Minimum height (stories)
|
1
|
1
| ||
Maximum height (stories)
|
3.5
|
3.5; 2.5 when lot is within 100 feet of an R1 District
| ||
14 |
All stories:
|
Stories are measured floor to floor.
| ||
Minimum height (feet)
|
9
|
10
| ||
Maximum height (feet)
|
12
|
14
| ||
FACADE AND CAP REQUIREMENTS
| ||||
15 |
Minimum transparency: all street frontage facades (%)
|
15%, measured per story of all stories
| ||
16 |
Minimum primary frontage principal entrances
|
1 per every 90 of building facade, off a stoop, minimum 6 wide
and 3 deep
|
See § 475-901K for principal entryway regulations.
| |
17 |
Entrance/ground-story elevation (feet)
|
Within 30 inches of adjacent street sidewalk average elevation
or between 30 inches and 5 with visible basement (transparency required)
|
See § 475-1502 for measuring.
| |
18 |
Ground-story vertical facade divisions on primary frontage facades
|
1 shadow line per every 100 of facade width
|
See § 475-901L for building articulation, including building variety.
| |
19 |
Horizontal facade divisions on primary frontage facades
|
1 shadow line within 3 feet of the top of the ground story on
any street facade
| ||
20 |
Permitted cap types
|
Parapet, flat, pitched; tower permitted
|
See § 475-309 for cap type regulations.
|
Figure 3-10
Riverfront Building Examples
(Examples may not comply with all regulations.)
| |||
Street frontage
|
Street frontage
|
Street frontage
|
River frontage
|
Table 3-6
Riverfront Building Regulations
| ||||
---|---|---|---|---|
Regulation
|
MXR District
|
GXR District
|
References
| |
BUILDING AND PARKING SITING
| ||||
1 |
Minimum primary frontage coverage (%)
|
80%
|
80%
|
See § 475-306C for allowed courtyards.
See § 475-306C for primary frontages in MXR.
|
2 |
Primary frontage build-to zone (feet)
|
5 to 20
|
10 to 30
|
See § 475-302 for explanation of primary and nonprimary frontages.
See § 475-306C for minimum streetscape area.
See § 475-306C for allowance for outdoor dining/seating.
|
River/trail frontage build-to zone (feet)
|
15 to 25
|
15 to 30
| ||
3 |
Nonprimary frontage build-to zone (feet)
|
10 to 20
|
15 to 25
| |
4 |
Minimum side setback (feet)
|
5
|
7.5; 15 abutting R District
| |
5 |
Minimum rear setback (feet)
|
Not applicable
|
See § 475-306C for riverfront facade treatment.
| |
6 |
Maximum site impervious coverage (%)
|
80%
|
80%
|
See Chapter 453 for floodway and floodplain regulations.
|
Additional semipervious coverage (%)
|
15%
|
15%
| ||
7 |
Surface or accessory parking yard location
|
Interior yard, limited side yard
|
See § 475-1502 for explanation of limited side yard parking.
See § 475-1502 for definitions of yards.
| |
8 |
Allowed parking location within building
|
Permitted fully in any basement and behind required occupied
space of all other stories
|
See § 475-1502 for definition of occupied space.
| |
9 |
Minimum depth of occupied building space along primary frontage
facade (feet)
|
20; not required in any basement or half story
| ||
10 |
Refuse and recycling, utilities, and loading yard location
|
Interior only
|
See Article IX for screening regulations.
| |
11 |
Permitted driveway access location permitted garage entry facade
location
|
1 per 200 feet of primary street frontage interior or interior
side facade
|
See § 475-302 for driveway access exception.
| |
HEIGHT
| ||||
12 |
Overall:
|
See § 475-306C for explanation of measuring height for this building type and conditions of design exception approval.
| ||
Maximum height (stories)
|
2
| |||
Maximum height (stories)
|
5; additional 6th story permitted with public hearing design
exception approval
| |||
12 |
Upper stories set back at R1 District
|
Above 3.5 stories, set back minimum 50 feet of any R1 District
lot line
| ||
13 |
Ground story:
|
Stories are measured floor to floor.
| ||
Minimum height (feet)
|
14
|
9
| ||
Maximum height (feet)
|
18
|
14
| ||
14 |
All other stories:
| |||
Minimum height (feet)
|
9
|
9
| ||
Maximum height (feet)
|
12
|
12
| ||
FACADE AND CAP REQUIREMENTS
| ||||
15 |
Minimum transparency: ground-story, primary river/trail frontage
frontage facades (%)
|
55%, measured between 2 and 8 feet above sidewalk
|
15%, measured per story
|
§ 475-302 requires primary frontage treatment to turn corners.
Blank wall limitations apply to primary frontage facades per § 475-1502.
|
16 |
Minimum transparency: all street facades and river/trail frontage
facades (%)
|
15%, measured per story of all stories
| ||
17 |
Minimum primary frontage principal entrances
|
Principal entrances 1 per every 60 feet of facade, recessed
between 3 and 8 feet, up to 8 feet wide
|
Principal entrances 1 per every 120 feet of facade
|
See § 475-901K for principal entryway regulations.
|
18 |
Minimum river/trail frontage principal entrances
|
Principal entrances 1 per every 150 feet of facade
| ||
19 |
Entrance/ground-story elevation (feet)
|
Within 1.5 of adjacent sidewalk or trail grade
|
Within 30 inches of adjacent street sidewalk or trail average
elevation or between 30 inches and 5 with visible basement (transparency
required)
|
See § 475-1502 for measuring.
|
20 |
Ground-story vertical facade divisions on primary frontage facades
|
1 shadow line per every 60 of facade width
|
1 shadow line per every 120 of facade width
|
See § 475-901L for building articulation, including building variety.
|
21 |
Horizontal facade divisions on primary frontage facades
|
1 shadow line within 3 feet of the top of the ground story on
any street facade
| ||
22 |
Permitted cap types
|
Parapet, flat, pitched; tower permitted
|
See § 475-309 for cap type regulations.
|
Figure 3-12
Row Building Examples
(Examples may not comply with all regulations.)
| |||
---|---|---|---|
Live-Work Row Building Example
|
Live-Work Row Building Example
|
Table 3-7
Row Building Regulations
| |||||
---|---|---|---|---|---|
Regulation
|
GXR District
|
GX District
|
NX District
|
References
| |
BUILDING SITING
| |||||
For the purposes of the row building type, a building consists
of multiple units.
| |||||
1 |
Minimum primary frontage coverage (%)
|
80%
|
75%
|
75%
|
See § 475-307C for allowed courtyards and layout with multiple buildings on a deeper lot.
|
2 |
Maximum building width (feet)
|
8 units or 200 feet, whichever is less
|
Building width is measured along primary frontage.
| ||
3 |
Primary and river frontage build-to zone (feet)
|
0 to 20
|
10 to 20
|
5 to 20
|
See § 475-302 for explanation of primary and nonprimary frontages.
|
4 |
Nonprimary frontage build-to zone (feet)
|
5 to 15
|
5 to 35
|
5 to 35
| |
5 |
Minimum side setback (feet)
Minimum space between buildings (feet)
|
5; 10, if abutting other building type
15
| |||
6 |
Minimum rear setback (feet)
|
15; 0 adjacent to alley
|
25; 5 adjacent to alley
| ||
7 |
Maximum site impervious coverage (%)
|
75%
|
65%
|
65%
| |
Additional semipervious coverage (%)
|
15%
|
15%
|
15%
| ||
8 |
Surface or accessory parking yard location
|
Rear, center on through lot
|
See § 475-1502 for explanation of limited side yard parking.
See § 475-1502 for definitions of yards.
| ||
9 |
Allowed parking location within building
|
Permitted fully in any basement and behind required occupied
space of all other stories
|
See § 475-1502 for definition of occupied space.
| ||
10 |
Minimum depth of occupied building space along primary frontage
facade (feet)
|
20 for all full height floors; not required in any basement
| |||
11 |
Refuse and recycling, utilities, and loading yard location
|
Rear
|
Center, side
|
See Article IX for screening regulations.
| |
12 |
Permitted driveway access location
|
Alley only; if no alley exists, one off nonprimary street
|
See § 475-302 for driveway access exception.
| ||
Permitted garage entry facade location
|
Rear
| ||||
HEIGHT
| |||||
13 |
Overall:
|
See § 475-1502 for explanation of measuring height.
| |||
Minimum height (stories)
|
2
|
1
|
1
| ||
Maximum height (stories)
|
3.5
|
2.5
|
3.5
| ||
14 |
Upper stories:
|
Stories are measured floor to floor.
| |||
Minimum height (feet)
|
10
|
9
|
10
| ||
Maximum height (feet)
|
14
|
12
|
14
| ||
FACADE AND CAP REQUIREMENTS
| |||||
15 |
Minimum transparency: all street and river frontage facades
(%)
|
15%, measured per story of all stories
|
§ 475-302 requires primary frontage treatment to turn corners.
Blank wall limitations apply to primary frontage facades per § 475-1502.
| ||
16 |
Minimum primary and river frontage principal entrances
|
Each unit requires one principal entrance on a street, courtyard,
or open space facade. Minimum of one principal entrance required per
30 of primary street facade.
|
See § 475-901K for principal entryway regulations.
| ||
17 |
Principal entrance configuration
|
Entry doors must be off a stoop, minimum 4 wide and 3 deep,
or a porch, minimum 8 wide and 5 deep.
No more than 2 entry doors may be located off each stoop or
porch.
| |||
18 |
Entrance/ground-story elevation (feet)
|
Within 30 inches of adjacent street sidewalk average elevation
or between 30 inches and 5 with visible basement (transparency required)
|
See Article XV for measuring.
| ||
19 |
Ground-story vertical facade divisions on primary frontage facades
|
1 shadow line per every 60 feet of street facade width or every
2 units, whichever is less
|
See § 475-901L for building articulation, including building variety.
| ||
20 |
Horizontal facade divisions on primary frontage facades
|
1 shadow line within 3 feet of any visible basement on any street
facade
| |||
21 |
Permitted cap types
|
Parapet, flat, pitched; one tower permitted per building
|
See § 475-309 for cap type regulations.
|
Table 3-8
Civic Building Regulations
| |||
---|---|---|---|
Regulation
|
All Locations
|
References
| |
BUILDING SITING
| |||
1 |
Minimum primary frontage coverage (%)
|
None required
| |
2 |
Primary frontage setback (feet)
|
15
|
See § 475-302 for explanation of primary and nonprimary frontages.
See § 475-308C for minimum streetscape area.
|
3 |
Nonprimary frontage setback (feet)
|
10
| |
4 |
Minimum side setback (feet)
|
15
| |
5 |
Minimum rear setback (feet)
|
15
| |
6 |
Maximum site impervious coverage (%)
Additional semipervious coverage (%)
|
None required
| |
7 |
Surface or accessory parking yard location
|
Rear, limited side yard
|
See § 475-1502 for explanation of limited side yard parking.
See § 475-1502 for definitions of yards.
|
8 |
Allowed parking location within building
|
Permitted fully in any basement and behind required occupied
space of all other stories
|
See § 475-1502 for definition of occupied space.
|
9 |
Minimum depth of occupied building space along primary frontage
facade (feet)
|
20 all full height floors; not required in any basement
| |
10 |
Refuse and recycling, utilities, and loading yard location
|
Rear yard, limited side yard
|
See Article IX for screening regulations.
|
11 |
Permitted driveway access location
|
Alley only
|
See § 475-302 for driveway access exception.
|
Permitted garage entry facade location
|
Rear or side facade
| ||
HEIGHT
| |||
12 |
Overall:
|
See § 475-1502 for explanation of measuring height.
| |
Minimum height (stories)
|
1
| ||
Maximum height (stories)
|
3.5
| ||
13 |
All stories:
|
Stories are measured floor to floor.
| |
Minimum height (feet)
|
9, 15 for single-story building
| ||
Maximum height (feet)
|
18, 24 for single-story building
| ||
FACADE AND CAP REQUIREMENTS
| |||
14 |
Minimum transparency: all street facades and facades visible
from any street (%)
|
15%, measured per story of all stories (including half stories)
|
§ 475-302 requires primary frontage treatment to turn corners.
Blank wall limitations apply to primary frontage facades per § 475-1502.
|
15 |
Minimum primary frontage principal entrances
|
Principal entrance required on primary frontage facade
|
See § 475-901K for principal entryway regulations.
|
16 |
Entrance/ground-story elevation (feet)
|
Principal entrance and 80 of the ground story must be within
30 inches of adjacent street sidewalk average elevation or between
30 inches and 5 with visible basement (transparency required)
| |
17 |
Ground-story vertical facade divisions on primary frontage and
main parking facades
|
No requirement; one deep shadow line recommended per every 60
of facade width, whichever is less
|
See § 475-901L for building articulation, including building variety.
|
18 |
Horizontal facade divisions on primary frontage and main parking
facades
|
No requirement; one deep shadow line recommended within 3 feet
of any visible basement
| |
19 |
Permitted cap types
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Parapet, pitched, flat, other with administrative design exception per § 475-1107; tower permitted
|
See § 475-309 for cap type regulations.
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