D.C. Mun. Regs. tit. 11-G, § 403
Penthouse and Rooftop Structure
Effective Aug 25, 202370 DCR 011297Authority: § 1 of the Zoning Act of 1938, approved June 20, 1938 (52 Stat. 797), as amended; D.C. Official Code § 6-641.01 (2018 Repl.), and pursuant to § 6 of the District of Columbia Administrative Procedure Act, approved October 21, 1968 (82 Stat. 1206; D.C. Official Code § 2 505(c) (2016 Repl.)). 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).District of Columbia, Office of the Secretary
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 ten feet (10 ft.), and the maximum number of stories within the penthouse or rooftop structure shall be one (1).
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).