The development standards of this chapter shall apply to all Residential House (R) zones except as changed by a geographically modified zone.
The development standards regulate the bulk of buildings and other structures and the spaces around them, including the following:
A principal building on a lot in any of the R-1 zones shall be a detached building.
A principal building on a lot in any of the R-2 zones shall be a detached building or a semi-detached building.
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.
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.
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.
D.C. Mun. Regs. tit. 11, r. 11-D200