D.C. Mun. Regs. tit. 11-I, § 531
Density - Floor Area Ratio (FAR) (D-4-R)
Effective Jul 23, 202168 DCR 7215Authority: § 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, 3041 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 64 DCR 22 (January 6, 2017); as amended by Final Rulemaking published at 68 DCR 7215 (July 23, 2021).District of Columbia, Office of the Secretary
531
531.1 The maximum permitted density for a building in the D-4-R zone shall be the density achievable within the height and bulk permitted by the zone and any applicable sub-area regulations:
- (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 § 531.5 is devoted to residential use; or
- (c) If conditions (a) or (b) are not satisfied, through the use of credits pursuant to Subtitle I, Chapters 8 and 9.
531.2 A building on a lot in the D-4-R zone shall provide a minimum residential FAR of 4.5 on the lot unless:
- (d) The residential requirement is reduced or eliminated by the provisions of Subtitle I §§ 200.3, 200.4, 305.2, or 531.3;
- (e) The residential requirement is reduced by up to 1.35 FAR through constructing or financially assisting affordable housing pursuant to Subtitle I § 305.6; or
- (f) If modified through the credit procedures provided in Subtitle I, Chapters 8 and 9.
531.3
The residential requirement in Subtitle I § 531.2 shall not apply to the following:
- (a) A building on Square 342, Lot 810 that has been used as a hostel since April 7, 2006, that remains in hostel use, and which may be expanded or rebuilt to a maximum 9.5 FAR without a housing requirement;
- (b) A building in the D-4-R zoned portion of Square 485; and
- (c) A building on any lot in Square 370 shall be exempt from minimum residential requirements as long as it has a valid construction permit or certificate of occupancy for a hotel.
531.3 Residential density in the D-4-R zone is not subject to the Inclusionary Zoning requirements or bonuses
of Subtitle C, Chapter 10.
531.4 Except for IZ Plus Inclusionary Developments, residential density in the D-4-R zone is not subject to the Inclusionary Zoning requirements or bonuses of Subtitle C, Chapter 10.
531.5 The maximum permitted non-residential FAR of a building in the D-4-R zone not employing credits enabled by Subtitle I, Chapters 8 and 9 shall be 3.5.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3041 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 64 DCR 22 (January 6, 2017); as amended by Final Rulemaking published at 68 DCR 7215 (July 23, 2021).