403. PENTHOUSE AND ROOFTOP STRUCTURE

403 PENTHOUSE AND ROOFTOP STRUCTURE 403.1 In the MU-2/CAP, MU-4/CAP, and MU-4/CAP/CHC zones, the maximum permitted height of a penthouse or rooftop structure, except as limited by Subtitle C § 1501 on the roof of a single household dwelling or flat, shall be twelve feet (12 ft.), except fifteen feet (15 ft.) for penthouse mechanical space, and the maximum number of stories within the penthouse or rooftop structure shall be one (1) with a second story permitted for penthouse mechanical space. SOURCE: Final Rulemaking published at 63 DCR 2447, 2944 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 64 DCR 7264 (July 28, 2017); as amended by Final Rulemaking published at 65 DCR 11490 (October 12, 2018); as amended by Final Rulemaking published at 66 DCR 13705 (October 18, 2019); as amended by Final Rulemaking published at 68 DCR 013125 (December 10, 2021); as amended by Final Rulemaking published at 68 DCR 013834 (December 24, 2021); as amended by Final Rulemaking published at 70 DCR 011297 (August 25, 2023); as amended by Final Rulemaking published at 73 DCR 009999 (July 10, 2026). District of Columbia Municipal Regulations Zoning Regulations of 2016: Mixed-Use (MU) Zones 11-G DCMR § 403