503. HEIGHT (D-1-R)

HEIGHT (D-1-R) The maximum permitted building height, not including the penthouse or rooftop structure, in the D-1-R zone shall be ninety feet (90 ft.). If a building exceeds ninety feet (90 ft.) in height, its frontage on Mount Vernon Square or on Massachusetts Avenue between North Capitol Street and 15th Street N.W. shall be subject to the Massachusetts Avenue Corridor and Mt. Vernon Square Sub-Area regulation in Subtitle I § 610.6. 503.3 The maximum permitted building height, not including the penthouse or rooftop structure, in the D-1-R zone shall be limited to ninety feet (90 ft.) on the portion of the site occupied by a historic landmark or a contributing building within a historic district. 503.4 The maximum permitted height of a penthouse or rooftop structure shall be twenty feet (20 ft.). The maximum permitted number of stories for penthouse habitable space shall be one (1) plus a mezzanine, except a second story shall be permitted for penthouse mechanical space. 503.5 The maximum permitted building height, not including the penthouse or rooftop structure, of a building without frontage on a street with a right-of-way width of at least ninety feet (90 ft.), and not subject to Subtitle I § 503.3, shall be the width of the street right-of-way, plus twenty feet (20 ft.). SOURCE: Final Rulemaking published at 63 DCR 2447, 3041 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 63 DCR 10932 (August 26, 2016); as amended by Final Rulemaking published at 68 DCR 013834 (December 24, 2021). District of Columbia Municipal Regulations Zoning Regulations of 2016: Downtown (D) Zones 11-I DCMR § 503