200.1 The development standards of this chapter shall apply to all Residential House (R) zones except as changed by a geographically modified zone.

200.2 The development standards regulate the bulk of buildings and other structures and the spaces around them, including the following:

(a) Height and number of stories;

(b) Density and lot occupancy;

(c) Yards and setbacks; and

(d) Environmental performance.

200.3 A principal building on a lot in any of the R-1 zones shall be a detached building.

200.4 A principal building on a lot in any of the R-2 zones shall be a detached building or a semi-detached building.

200.5 A principal building on a lot in any of the R-3 zones shall be a detached building, a semi-detached building, or a row building.

200.6 Except for new penthouse habitable space as described in Subtitle C § 1507.2, the Inclusionary Zoning requirements and modifications of Subtitle C, Chapter 10, shall not apply to any of the R-1 zones.

200.7 The Inclusionary Zoning (IZ) requirements and the available IZ modifications to certain development standards shall apply to any of the R-2 and R-3 zones, as specified in Subtitle C, Chapter 10, Inclusionary Zoning, and in the zone-specific development standards of this subtitle.

SOURCE: Final Rulemaking published at 63 DCR 2447, 2834 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 70 DCR 011297 (August 25, 2023).