D.C. Mun. Regs. tit. 11-I, § 576
576.1 The maximum permitted density for a building in the D-8 zone shall be the density achievable within the height and bulk permitted by the zone and any applicable sub-area regulations, provided the building meets the requirements of Subtitle I § 575.2, and:
(a) If all of the building’s FAR is devoted to residential use;
(b) If all FAR exceeding the non-residential density permitted in Subtitle I §576.4 is devoted to residential use; or
(c) If conditions (a) or (b) are not satisfied through the employment of credits provided for by Subtitle I, Chapters 8 and 9.
576.2 If the conditions of Subtitle I § 576.1(a) through (c) are not satisfied, a special exception from the Zoning Commission pursuant to Subtitle X, Chapter 9 and Subtitle I § 581 may be requested.
576.3 Residential density in the D-8 zone is subject to the Inclusionary Zoning requirements and bonuses of Subtitle C, Chapter 10.
576.4 The maximum permitted non-residential density for a building in the D-8 zone that meets the requirements of Subtitle I § 575.2, but does not meet the conditions in Subtitle I § 576.1, shall be 6.5 FAR, unless a greater FAR is approved by the Zoning Commission consistent with Subtitle I § 581.
576.5 For a project subject to Subtitle I § 576.1, the determination of the potential maximum gross square footage of the project shall not include the land area of:
(d) An existing street right-of-way; or
(e) A street right-of-way that has not been officially closed by an act of the Council of the District of Columbia or its predecessor bodies, even if a building has already
Zoning Regulations of 2016:
Downtown (D) Zones
been constructed in it.
576.6 A historic landmark or a contributing building in a historic district is subject to the requirements, permissions, and conditions of Subtitle I §§ 200.2 and 200.3.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3041 (March 4, 2016 – Part 2).
Zoning Regulations of 2016:
Downtown (D) Zones
11-I DCMR § 576