Section 11-C1503. PENTHOUSE AREA

1503.1 For the purposes of calculating floor area ratio for the building, the aggregate square footage of all penthouse levels or stories measuring six and one-half feet (6.5 ft.) or more in height shall be included in the total floor area ratio permitted for the building, with the following exceptions:

(a) Penthouse mechanical space;

(b) Communal recreation space;

(c) Penthouse habitable space, other than as exempted in Subtitle C § 1503.1(b) with a floor area ratio of less than four-tenths (0.4); and

(d) Mechanical equipment owned and operated as a penthouse by a fixed right-of-way public mass transit system.

1503.2 Penthouses shall not exceed one-third (1/3) of the total roof area upon which the penthouse sits in the following areas: 

(a) Zones where there is a limitation on the number of stories other than the MU-8, MU-20, or NC-13 zones; and

(b) Any property fronting directly onto Independence Avenue, S.W. between 12th Street, S.W. and 2nd Street, S.W.

1503.3 Areas within curtain walls without a roof used where needed to give the appearance of one (1) structure shall not be counted in floor area ratio, but shall be computed as a roof structure to determine if they comply with Subtitle C § 1503.2.

 

 

authority

§ 1 of the Zoning Act of 1938, approved June 20, 1938 (52 Stat. 797, as amended; D.C. Official Code § 6-641.01 (2012 Repl.)).

source

Final Rulemaking published at 63 DCR 2447, 2712 (March 4, 2016 – Part 2).