201. HEIGHT

HEIGHT Unless otherwise noted in Subtitle I § 201.4, the maximum permitted building height, not including the penthouse or rooftop structure, shall be that specified in the applicable zone. Height shall be measured in accordance with Subtitle B § 307, except as provided in Subtitle I § 201.3. A building or structure that has frontage on Pennsylvania Avenue, N.W within the boundaries of the Pennsylvania Avenue sub-area defined in Subtitle I § 608 shall determine its measuring point by the rules in Subtitle I § 608.9. The height of a building or structure on portions of designated street segments in the following sub-areas shall provide an upper-story height setback, or be subject to additional review, as prescribed in Subtitle I, Chapter 6: Capitol Security Sub-Area pursuant to Subtitle I § 605; Pennsylvania Avenue Sub-Area pursuant to Subtitle I § 608; Massachusetts Avenue Corridor and Mount Vernon Square Sub-Area pursuant to Subtitle I § 610; Mount Vernon Triangle Principal Intersection Sub-Area pursuant to Subtitle I § 612; The 900 block of M Street, N.W. in the Blagden Alley Residential Transition Sub-Area pursuant to Subtitle I § 613; South Capitol Street pursuant to Subtitle I § 616; North Capitol Street pursuant to Subtitle I § 617; and Independence Avenue, S.W. pursuant to Subtitle I § 618. Unless otherwise restricted by this subtitle, if the regulations for an individual zone restrict the non-residential height of a building, the non-residential height of a building constructed as part of a PUD may be increased in accordance with Subtitle X § 303 and Subtitle I § 211. No part of a new building or a vertical expansion of an existing building on a lot within a D zone shall project above a plane at a forty-five degree (45°) angle from a line that is: Directly above the zone boundary line between the lot in a D zone and an adjacent lot in an R or RA zone; or Above a boundary line described in Subtitle I § 201.6(a), or an MU-zoned lot west of 20th Street, N.W. by the distance of the matter-of-right height for a building on the abutting R, RA, or MU-zoned lot. SOURCE: Final Rulemaking published at 63 DCR 2447, 3041 (March 4, 2016 – Part 2); 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 § 201