Building Types
Table 660-3. Allowed Building Types by Zone | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Building Types | Mixed-Use Zones | Neighborhood Zones | Industrial Zones | Public and Institutional Zones | Section | ||||||||||||||
MX | GX | ||||||||||||||||||
-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 |
Figure 660-18(1) Street Frontages ![]() |
Figure 660-18(2) Example of a Double-Frontage Lot (Building Section) ![]() |
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 |




Figure 660-20(1) Storefront Building Siting |
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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. | |
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. |
See front streetwall allowances for courtyard or plaza per § 660-20J(1) | ||||||
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. | |
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. |
Figure 660-20(2) Storefront Building Parking Siting |
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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. [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 | — | — | — | — | |
Figure 660-20(3) Storefront Building Height and Roofs |
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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 | |
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. | |
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. [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 | ||
Figure 660-20(4) Storefront Building Facades |
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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. | |
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 | ||||
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. | ||
Figure 660-20(5) Required Setback Additional Height Across From N Zone |
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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 |




Figure 660-21(2) Commercial Center Building Siting |
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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. | |
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. |
Figure 660-21(3) Commercial Center Parking Siting |
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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. (Refer to § 660-131L.) | ||
|---|---|---|
Zones | ||
MX-S | Additional/References | |
Principal Dwelling Units | No limit | See Article 5 for allowed uses. |
Accessory Dwelling Units | — | |
Figure 660-21(4) Commercial Center Height and Roofs |
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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 | |
14 ft. min., 18 ft. max. for single-story building | |||
14 | Upper Story Height | 9 ft. min. 12 ft. max. | |
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 | ||
Figure 660-21(5) Commercial Center Facades |
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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. |
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 | |
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 | |
Figure 660-21(6) Large-Format Space |
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Figure 660-21(7) Pitched Roof on Single Story Commercial Center |
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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 |





Figure 660-22(2) General Building Siting |
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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. | |
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. |
Figure 660-22(3) General Building Parking Siting |
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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 | ||||||||
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. [Refer to § 660-131L.] | |||||
|---|---|---|---|---|---|
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 | — | — | — | ||
Figure 660-22(4) General Building Height and Roofs |
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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. 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 | ||
Figure 660-22(5) General Building Facades |
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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 | |
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 |





Figure 660-23(2) Small General Building Siting |
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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 | |
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. |
— | — | 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. |
Figure 660-23(3) Small General Building Parking Siting |
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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 | — | — | — | ||||
Fuel Pumps | — | — | — | ○ | = | Requires Special Exception | |
Outdoor Storage | — | — | — | — | = | Not Allowed | |
Parking Structure | — | — | — | ||||
Number and Location of Dwelling Units. [Refer to § 660-131L.] | |||||
|---|---|---|---|---|---|
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 | ||
Figure 660-23(4) Small General Building Height and Roofs |
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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. [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 | ||
Figure 660-23(5) Small General Building Facades |
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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. |
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. | |
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 |




Figure 660-24(2) Town Rowhouse Siting |
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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. |
— | 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. |
Figure 660-24(3) Town Rowhouse Parking Siting |
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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. (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 | |
Figure 660-24(4) Town Rowhouse Height and Roofs |
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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. [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 | ||
Figure 660-24(5) Town Rowhouse Facades |
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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. |
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 | — | |||
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 |




Figure 660-25(2) Urban Rowhouse Siting |
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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. |
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. |
Figure 660-25(3) Urban Rowhouse Parking Siting |
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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. (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 | ||
Figure 660-25(4) Urban Rowhouse Height and Roofs |
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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. [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. |
Tower | Not allowed | ||
Figure 660-25(5) Urban Rowhouse Facades |
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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. |
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 | |
Horizontal Divisions with Shadow Lines | — | See § 660-150 for definition of shadow lines. | |
Vertical Divisions with Shadow Lines | — | ||
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 |




Figure 660-26(2) Lane Rowhouse Siting |
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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. | |
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. | |
Figure 660-26(3) Lane Rowhouse Parking Siting |
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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. (Refer to § 660-131L.) | |||
|---|---|---|---|
Zone | |||
N1, N2 | Additional/References | ||
Principal Dwelling Units | 1 in principal building unit | See Article 5 for allowed uses. | |
Accessory Dwelling Units | Not allowed | ||
Figure 660-26(4) Lane Rowhouse Height and Roofs |
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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. [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 | ||
Figure 660-26(5) Lane Rowhouse Facades |
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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. |
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 | |
Horizontal Divisions with Shadow Lines | — | See § 660-150 for definition of shadow lines. | |
Vertical Divisions with Shadow Lines | — | ||
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 |




Figure 660-29(2) House A Building Siting |
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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. |
Figure 660-29(3) House A Parking Siting |
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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 | — | — | — | ||||
Number and Location of Dwelling Units. (Refer to § 660-131L.) | |||||
|---|---|---|---|---|---|
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 | ||
Figure 660-29(5) House A Height and Roofs |
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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. [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 | ||
Figure 660-29(6) House A Facades |
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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. | ||
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 |




Figure 660-32(2) Workshop Building Siting |
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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. | |
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. |
Figure 660-32(3) Workshop Building Parking Siting |
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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. | |||
Front, Side-Street, Side and Rear Setback | 5 ft. min., 15 ft. min. abutting to N zone | ||||||
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 | • | • | |||||
Figure 660-32(4) Workshop Building Height |
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Figure 660-32(5) Workshop Building Facades |
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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. [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 | — | |||
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 |




Figure 660-33(2) Civic Building Siting |
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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. | |
6 | Building Coverage | 90% max. | 90% max. | See § 660-131I for measuring building coverage. |
Figure 660-33(3) Civic Building Parking Siting |
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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 | • | • | ||||
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. | |
Figure 660-33(4) Civic Building Height and Roofs |
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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. | |
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 | |
Figure 660-33(5) Civic Building Facades |
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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 | — | — | ||