Height, Density and Area Requirements
District | Height (feet) | |
|---|---|---|
All residential districts and ER District | 35,1,3 but not to exceed 2 1/2 floors or stories above grade | |
Commercial districts | ||
Tier 1 uses | 35,1,3 but not to exceed 2 1/2 floors or stories above grade | |
Tier 2 uses | 42,2,4 but not to exceed 4 floors or stories above grade | |
Tier 3 uses | 42,2,4 but not to exceed 4 floors or stories above grade | |
Notes: |
|---|
1Functional chimneys may exceed the height limit if required by the building code, but only to the extent required by the building code. |
2Heating, ventilation and cooling devices, which are to be enclosed so as to be obscured from view, elevator shafts, one stairway entry for maintenance access to the roof, chimneys and antennas shall not be included in calculating height. |
3No roofs of less than 5/12 pitch shall be permitted above a height of 14 feet, including the roofs on dormers. Roof pitch shall start at a wall plate height of not more than 24 feet. No railings or roof decks shall be permitted where any part of the surface is above a height of 14 feet. All heights in this section shall be measured from a point where the center line of the building to be erected intersects with the center line of the street on which the building will front. |
4A dome, spire, cupola, belfry, chimney or pinnacle serving as an architectural embellishment and not for occupancy or storage may be erected to a height in excess of that authorized in this subsection for the district in which the building concerned is located, provided that the aggregate of the bases of all such structures does not exceed 10% of the building's ground floor area. The total height of a building with such embellishments shall not exceed 50 feet. |
District | Maximum Lot Coverage (percent) | Maximum Area of Accessory Structures (if any) (percent) |
|---|---|---|
R-1(S) | 35% | 10% |
R-1 and R-2 | 40% | 10% |
Use | Maximum Lot Coverage (percent) |
|---|---|
Permitted residential uses | 50% |
Mid-rise apartment and garden apartment | 50% |
Hotel, motel, inn | 50% |
All other commercial uses | 100% of net lot area |
Underground parking | 100% of gross area, provided that no parts of the parking structure, except accessways, are above sidewalk level or above the undisturbed ground level of adjacent properties |
Use | Maximum Lot Coverage (percent) | Maximum Floor Area Ratio | Minimum Natural Area (percent) |
|---|---|---|---|
Education facilities and conditional uses | 5% | 0.10 | 70% |
Residential uses | 50% | 0.60 | 40% |
District and Use | Minimum Lot Area | Minimum Lot Width (feet) | |||
|---|---|---|---|---|---|
R-1(S) | 34,500 sq. ft. | 75 | |||
R-1 R-2 | 5,000 sq. ft. | 50 | |||
Single-family detached and other uses permitted in R-1 | 5,000 sq. ft. | 50 | |||
Single-family semidetached | 5,000 sq. ft. | 50 | |||
Two-family dwelling | 5,000 sq. ft. | 50 | |||
Single-family attached | 5,000 sq. ft. | 50 | |||
Garage apartment | 5,000 sq. ft. | 50 | |||
Garden apartment | 10,000 sq. ft. | 100 | |||
Commercial Districts | |||||
All uses permitted in Residential Districts except: | |||||
Garage apartments | 5,000 sq. ft. | 50 | |||
Garden apartments | 10,000 sq. ft. | 100 | |||
Mid-rise apartment | 10,000 sq. ft. | 100 | |||
Hotel, motel or inn | 10,000 sq. ft. | 100 | |||
All other commercial uses over 35 feet in height | 5,000 sq. ft. | 50 | |||
All other commercial uses | 5,000 sq. ft. | 50 | |||
ER (educational facilities) | 24 acres | 500 | |||
ER (residentail parcel) | |||||
Single-family detached | 5,000 sq. ft. | 50 | |||
Two-family dwelling | 5,000 sq. ft. | 50 | |||
Single-family semidetached | 5,000 sq. ft. | 50 | |||
Garage apartment | 5,000 sq. ft. | 50 | |||
Apartment | 5,000 sq. ft. | 50 | |||
Garden apartment | 10,000 sq. ft. | 100 | |||
District and Use | Minimum Lot Area Per Dwelling or Dwelling Unit (square feet) | |
|---|---|---|
R-1(S), including accessory structures used as dwellings or dwelling units | 34,500 | |
R-1, including accessory structures used as dwellings or dwelling units | 5,000 | |
R-2 uses permitted in R-1, including accessory structures used as dwellings or dwelling units | 5,000 | |
Single-family semidetached | 5,000 | |
Two-family dwelling | 5,000 | |
Single-family attached | 5,000 | |
Apartment | 5,000 | |
Garden apartment | 5,000 | |
Garage apartment | 5,000 | |
Commercial Districts | ||
Single-family detached | 5,000 | |
Single-family semidetached | 5,000 | |
Two-family dwelling | 5,000 | |
Single-family attached | 5,000 | |
Apartment | 5,000 | |
Garden apartment | 5,000 | |
Garage apartment | 5,000 | |
Mid-rise apartment | 5,000 | |
Tourist, rooming house or boardinghouse | 800 | |
Hotel, motel, inn | 300 | |
All other commercial uses | Not applicable | |
ER (residential parcel only) | ||
Single-familty detached | 5,000 | |
Two-family dwelling | 5,000 | |
Single-family semidetached | 5,000 | |
Single-family attached | 5,000 | |
Garden apartment | 5,000 | |
Garage apartment | 5,000 | |
Apartment | 5,000 | |
District and Use | Minimum Building Setback Line (feet) | |
|---|---|---|
R-1(S) | 75 | |
R-1 | 151,2 | |
R-2 | 10 | |
Commercial | ||
Tier 1 uses | 103 | |
Tier 2 uses | None | |
Tier 3 uses | None | |
ER | ||
Educational facilities | 75 | |
Residential parcel | 10 | |
Notes: |
1An open front porch of any size that meets the requirements of § 270-21(B)(1) may encroach up to five feet into the front yard setback area. |
2For a building built on a corner lot, the side that faces the street which is not the front shall have a minimum building setback line of 10 feet. This setback shall substitute for one of the two required side yards. |
3Tier 1 uses within a mixed-use structure shall meet the required setback. |
District and Use | Minimum Depth of Rear Yard (feet) | ||
|---|---|---|---|
R-1(S) | 50 | ||
R-1 | 15 | ||
R-2 | 15 | ||
Commercial | |||
Tier 1 uses | 101 | ||
Tier 2 uses | None | ||
Tier 3 uses | None | ||
ER | |||
Educational facilities | 75 | ||
Residential parcel | 10 | ||
Notes: | |
|---|---|
1Tier 1 uses within a mixed-use structure shall provide the required rear yard. |
District and Use | Minimum Width of Each Side Yard (feet) | Minimum Aggregate Total of Both Side Yards (feet) | |
|---|---|---|---|
R-1(S) | 25 | 50 | |
R-1 | 6 | 162 | |
R-2 | |||
Uses in R-1 | 6 | 162 | |
Single-family semidetached | 10 | 20 | |
Two-family dwelling | 10 | 20 | |
Single-family attached | 10 | 20 | |
All other uses | 10 | 20 | |
Commercial | |||
Uses in R-1 | 6 | 16 | |
All other Tier 1 uses | 101 | 201 | |
Tier 2 uses | None | None | |
Tier 3 uses | None | None | |
ER | |||
Educational facilities | 75 | 150 | |
Residential parcel | 10 | 20 | |
Notes: | ||
1 | Tier 1 Uses within a mixed-use structure shall provide the required side yards. | |
2 | When the width of a lot exceeds 52.5 feet and the lot area exceeds 5,250 square feet, the "minimum aggregate total of both side yards" shall be the product of multiplying the applicable minimum aggregate total of both side yards by the lesser of: | |
(1) | The quotient obtained by dividing the width of the lot in feet by 50; or | |
(2) | The quotient obtained by dividing the area of the lot in square feet by 5,000. | |
Where for the purposes of this section the width of a lot is defined as: | ||
(1) | The perpendicular distance between the two side lot lines when these lot lines are parallel; or | |
(1) | When the two side lot lines are not parallel, the length of the street line between the points where these lot lines intersect the street line at the front of the lot. | |
In the case of a corner lot, one side lot line shall be interpreted as the street line of the intersecting street. | ||
In the case of a corner lot where the right-of-way lines of the intersecting streets are joined by an arc, the point of measurement is the point at which the extension of the two right-of-way lines intersect. | ||
Height, Density and Area Requirements
District | Height (feet) | |
|---|---|---|
All residential districts and ER District | 35,1,3 but not to exceed 2 1/2 floors or stories above grade | |
Commercial districts | ||
Tier 1 uses | 35,1,3 but not to exceed 2 1/2 floors or stories above grade | |
Tier 2 uses | 42,2,4 but not to exceed 4 floors or stories above grade | |
Tier 3 uses | 42,2,4 but not to exceed 4 floors or stories above grade | |
Notes: |
|---|
1Functional chimneys may exceed the height limit if required by the building code, but only to the extent required by the building code. |
2Heating, ventilation and cooling devices, which are to be enclosed so as to be obscured from view, elevator shafts, one stairway entry for maintenance access to the roof, chimneys and antennas shall not be included in calculating height. |
3No roofs of less than 5/12 pitch shall be permitted above a height of 14 feet, including the roofs on dormers. Roof pitch shall start at a wall plate height of not more than 24 feet. No railings or roof decks shall be permitted where any part of the surface is above a height of 14 feet. All heights in this section shall be measured from a point where the center line of the building to be erected intersects with the center line of the street on which the building will front. |
4A dome, spire, cupola, belfry, chimney or pinnacle serving as an architectural embellishment and not for occupancy or storage may be erected to a height in excess of that authorized in this subsection for the district in which the building concerned is located, provided that the aggregate of the bases of all such structures does not exceed 10% of the building's ground floor area. The total height of a building with such embellishments shall not exceed 50 feet. |
District | Maximum Lot Coverage (percent) | Maximum Area of Accessory Structures (if any) (percent) |
|---|---|---|
R-1(S) | 35% | 10% |
R-1 and R-2 | 40% | 10% |
Use | Maximum Lot Coverage (percent) |
|---|---|
Permitted residential uses | 50% |
Mid-rise apartment and garden apartment | 50% |
Hotel, motel, inn | 50% |
All other commercial uses | 100% of net lot area |
Underground parking | 100% of gross area, provided that no parts of the parking structure, except accessways, are above sidewalk level or above the undisturbed ground level of adjacent properties |
Use | Maximum Lot Coverage (percent) | Maximum Floor Area Ratio | Minimum Natural Area (percent) |
|---|---|---|---|
Education facilities and conditional uses | 5% | 0.10 | 70% |
Residential uses | 50% | 0.60 | 40% |
District and Use | Minimum Lot Area | Minimum Lot Width (feet) | |||
|---|---|---|---|---|---|
R-1(S) | 34,500 sq. ft. | 75 | |||
R-1 R-2 | 5,000 sq. ft. | 50 | |||
Single-family detached and other uses permitted in R-1 | 5,000 sq. ft. | 50 | |||
Single-family semidetached | 5,000 sq. ft. | 50 | |||
Two-family dwelling | 5,000 sq. ft. | 50 | |||
Single-family attached | 5,000 sq. ft. | 50 | |||
Garage apartment | 5,000 sq. ft. | 50 | |||
Garden apartment | 10,000 sq. ft. | 100 | |||
Commercial Districts | |||||
All uses permitted in Residential Districts except: | |||||
Garage apartments | 5,000 sq. ft. | 50 | |||
Garden apartments | 10,000 sq. ft. | 100 | |||
Mid-rise apartment | 10,000 sq. ft. | 100 | |||
Hotel, motel or inn | 10,000 sq. ft. | 100 | |||
All other commercial uses over 35 feet in height | 5,000 sq. ft. | 50 | |||
All other commercial uses | 5,000 sq. ft. | 50 | |||
ER (educational facilities) | 24 acres | 500 | |||
ER (residentail parcel) | |||||
Single-family detached | 5,000 sq. ft. | 50 | |||
Two-family dwelling | 5,000 sq. ft. | 50 | |||
Single-family semidetached | 5,000 sq. ft. | 50 | |||
Garage apartment | 5,000 sq. ft. | 50 | |||
Apartment | 5,000 sq. ft. | 50 | |||
Garden apartment | 10,000 sq. ft. | 100 | |||
District and Use | Minimum Lot Area Per Dwelling or Dwelling Unit (square feet) | |
|---|---|---|
R-1(S), including accessory structures used as dwellings or dwelling units | 34,500 | |
R-1, including accessory structures used as dwellings or dwelling units | 5,000 | |
R-2 uses permitted in R-1, including accessory structures used as dwellings or dwelling units | 5,000 | |
Single-family semidetached | 5,000 | |
Two-family dwelling | 5,000 | |
Single-family attached | 5,000 | |
Apartment | 5,000 | |
Garden apartment | 5,000 | |
Garage apartment | 5,000 | |
Commercial Districts | ||
Single-family detached | 5,000 | |
Single-family semidetached | 5,000 | |
Two-family dwelling | 5,000 | |
Single-family attached | 5,000 | |
Apartment | 5,000 | |
Garden apartment | 5,000 | |
Garage apartment | 5,000 | |
Mid-rise apartment | 5,000 | |
Tourist, rooming house or boardinghouse | 800 | |
Hotel, motel, inn | 300 | |
All other commercial uses | Not applicable | |
ER (residential parcel only) | ||
Single-familty detached | 5,000 | |
Two-family dwelling | 5,000 | |
Single-family semidetached | 5,000 | |
Single-family attached | 5,000 | |
Garden apartment | 5,000 | |
Garage apartment | 5,000 | |
Apartment | 5,000 | |
District and Use | Minimum Building Setback Line (feet) | |
|---|---|---|
R-1(S) | 75 | |
R-1 | 151,2 | |
R-2 | 10 | |
Commercial | ||
Tier 1 uses | 103 | |
Tier 2 uses | None | |
Tier 3 uses | None | |
ER | ||
Educational facilities | 75 | |
Residential parcel | 10 | |
Notes: |
1An open front porch of any size that meets the requirements of § 270-21(B)(1) may encroach up to five feet into the front yard setback area. |
2For a building built on a corner lot, the side that faces the street which is not the front shall have a minimum building setback line of 10 feet. This setback shall substitute for one of the two required side yards. |
3Tier 1 uses within a mixed-use structure shall meet the required setback. |
District and Use | Minimum Depth of Rear Yard (feet) | ||
|---|---|---|---|
R-1(S) | 50 | ||
R-1 | 15 | ||
R-2 | 15 | ||
Commercial | |||
Tier 1 uses | 101 | ||
Tier 2 uses | None | ||
Tier 3 uses | None | ||
ER | |||
Educational facilities | 75 | ||
Residential parcel | 10 | ||
Notes: | |
|---|---|
1Tier 1 uses within a mixed-use structure shall provide the required rear yard. |
District and Use | Minimum Width of Each Side Yard (feet) | Minimum Aggregate Total of Both Side Yards (feet) | |
|---|---|---|---|
R-1(S) | 25 | 50 | |
R-1 | 6 | 162 | |
R-2 | |||
Uses in R-1 | 6 | 162 | |
Single-family semidetached | 10 | 20 | |
Two-family dwelling | 10 | 20 | |
Single-family attached | 10 | 20 | |
All other uses | 10 | 20 | |
Commercial | |||
Uses in R-1 | 6 | 16 | |
All other Tier 1 uses | 101 | 201 | |
Tier 2 uses | None | None | |
Tier 3 uses | None | None | |
ER | |||
Educational facilities | 75 | 150 | |
Residential parcel | 10 | 20 | |
Notes: | ||
1 | Tier 1 Uses within a mixed-use structure shall provide the required side yards. | |
2 | When the width of a lot exceeds 52.5 feet and the lot area exceeds 5,250 square feet, the "minimum aggregate total of both side yards" shall be the product of multiplying the applicable minimum aggregate total of both side yards by the lesser of: | |
(1) | The quotient obtained by dividing the width of the lot in feet by 50; or | |
(2) | The quotient obtained by dividing the area of the lot in square feet by 5,000. | |
Where for the purposes of this section the width of a lot is defined as: | ||
(1) | The perpendicular distance between the two side lot lines when these lot lines are parallel; or | |
(1) | When the two side lot lines are not parallel, the length of the street line between the points where these lot lines intersect the street line at the front of the lot. | |
In the case of a corner lot, one side lot line shall be interpreted as the street line of the intersecting street. | ||
In the case of a corner lot where the right-of-way lines of the intersecting streets are joined by an arc, the point of measurement is the point at which the extension of the two right-of-way lines intersect. | ||