Basic regulations for R6 through R9 Districts
R6 R7 R8 R9
In the districts indicated without a letter suffix, the minimum required open space ratio and the maximum floor area ratio for any zoning lot shall be determined by the height factor of such zoning lot as set forth in this Section.
MINIMUM REQUIRED OPEN SPACE RATIO AND MAXIMUM FLOOR AREA RATIO
R6 through R9 Districts
| In R6 Districts | In R7 Districts | In R8 Districts | In R9 Districts | ||||
Min. Req. Open Space Ratio | Max. Floor Area Ratio | Min. Req. Open Space Ratio | Max. Floor Area Ratio | Min. Req. Open Space Ratio | Max. Floor Area Ratio | Min. Req. Open Space Ratio | Max. Floor Area Ratio | |
1 | 27.5 | 0.78 | 15.5 | 0.87 | 5.9 | 0.94 | 1.0 | 0.99 |
2 | 28.0 | 1.28 | 16.0 | 1.52 | 6.2 | 1.78 | 1.4 | 1.95 |
3 | 28.5 | 1.62 | 16.5 | 2.01 | 6.5 | 2.51 | 1.8 | 2.85 |
4 | 29.0 | 1.85 | 17.0 | 2.38 | 6.8 | 3.14 | 2.2 | 3.68 |
5 | 29.5 | 2.02 | 17.5 | 2.67 | 7.1 | 3.69 | 2.6 | 4.42 |
6 | 30.0 | 2.14 | 18.0 | 2.88 | 7.4 | 4.15 | 3.0 | 5.08 |
7 | 30.5 | 2.23 | 18.5 | 3.05 | 7.7 | 4.55 | 3.4 | 5.65 |
8 | 31.0 | 2.30 | 19.0 | 3.17 | 8.0 | 4.88 | 3.8 | 6.13 |
9 | 31.5 | 2.35 | 19.5 | 3.27 | 8.3 | 5.15 | 4.2 | 6.54 |
10 | 32.0 | 2.38 | 20.0 | 3.33 | 8.6 | 5.38 | 4.6 | 6.85 |
11 | 32.5 | 2.40 | 20.5 | 3.38 | 8.9 | 5.56 | 5.0 | 7.09 |
12 | 33.0 | 2.42 | 21.0 | 3.41 | 9.2 | 5.71 | 5.4 | 7.30 |
13 | 33.5 | 2.43 | 21.5 | 3.42 | 9.5 | 5.81 | 5.8 | 7.41 |
14 | 34.0 | 2.43 | 22.0 | 3.44 | 9.8 | 5.92 | 6.2 | 7.52 |
15 | 34.5 | 2.43 | 22.5 | 3.42 | 10.1 | 5.95 | 6.6 | 7.52 |
16 | 35.0 | 2.42 | 23.0 | 3.41 | 10.4 | 5.99 | 7.0 | 7.52 |
17 | 35.5 | 2.42 | 23.5 | 3.40 | 10.7 | 6.02 | 7.4 | 7.52 |
18 | 36.0 | 2.40 | 24.0 | 3.38 | 11.0 | 6.02 | 7.8 | 7.46 |
19 | 36.5 | 2.39 | 24.5 | 3.36 | 11.3 | 6.02 | 8.2 | 7.41 |
20 | 37.0 | 2.38 | 25.0 | 3.33 | 11.6 | 6.02 | 8.6 | 7.35 |
21 | 37.5 | 2.36 | 25.5 | 3.30 | 11.9 | 5.99 | 9.0 | 7.25 |
For zoning lots with height factors greater than 21, the minimum required open space ratio shall be as set forth in the following table:
OPEN SPACE RATIO FOR HIGH BUILDINGS
District | Minimum Required Open Space Ratio at Height Factor of 21 | Additional Required Open Space Ratio for each Additional Height Factor |
R6 | 37.5 | 0.5 |
R7 | 25.5 | 0.5 |
R8 | 11.9 | 0.3 |
R9 | 9.0 | 0.4 |
For these zoning lots, the maximum floor area ratio shall be such as can be attained at the required open space ratio for the height factor.*
* The floor area ratio attainable at a given height factor and a given open space ratio may be computed from the following formula:
1 | = | O.S.R. | + | 1 |
F.A.R. | 100 | H.F. |
