The provisions of § 411 shall apply to penthouses in the USN Zone District.
A penthouse may be erected to a height in excess of that permitted in § 2905 but shall not exceed the height, as measured from the surface of the roof upon which the penthouse is located, in the following table:
ZONE DISTRICT | MAXIMUM PENTHOUSE HEIGHT | MAXIMUM PENTHOUSE STORIES |
USN | 20 ft. | 1 plus mezzanine; second story permitted for penthouse mechanical space |
D.C. Mun. Regs. tit. 11, r. 11-2906