D.C. Mun. Regs. r. 11-402
In an R-1 and R-2 District, the maximum floor area ratio requirements applicable in each district may be increased for specific public school buildings or structures; provided, the total gross floor area of all buildings and structures on the campus shall not exceed a floor area ratio of nine-tenths (0.9).
In an R-3, R-4, R-5-A, and R-5-B District, the maximum floor area ratio requirements applicable to each district may be increased for specific public school buildings or structures, but shall not exceed the floor area ratio prescribed for the R-5-B District.
In all other Residence Districts not provided for in §§ 402.1 and 402.2, increases in the floor area ratio of all public school buildings and structures shall not exceed the floor area ratio prescribed for the R-5-C District.
Except as provided in other provisions of this chapter and in § 411, the maximum permitted floor area ratio in a Residence District shall be as set forth in the following table:
ZONE DISTRICT AND STRUCTURE | MAXIMUM FLOOR AREA RATIO (FAR) |
R-1-A, R-1-B, R-2, R-3, R-4 R-5-A Public libraries All Structures R-5-B Public libraries All structures R-5-C All structures R-5-D All structures R-5-E Apartment house and hotel Any other structure | None prescribed 2.0 0.9 2.0 1.8 3.0 3.5 6.0 5.0 |
First floor or basement areas designed and used for parking space or for recreation space shall not be counted in the floor area ratio; provided, that not more than fifty percent (50%) of the perimeter of the space may be comprised of columns, piers, walls or windows, or may be similarly enclosed.
A public recreation and community center in an R-1, R-2, or R-5-A district shall not exceed 0.9 floor area ratio, except that a public recreation and community center may have a floor area ratio up to 1.8 if approved by the Board of Zoning Adjustment, pursuant to § 3104.1.
A public recreation and community center in an R-3, R-4, R-5-B, R-5-C, R-5-D, or R-5-E district shall not exceed 1.8 floor area ratio.
D.C. Mun. Regs. r. 11-402