The R-1 District is designed to protect quiet residential areas now developed with one-family detached dwellings and adjoining vacant areas likely to be developed for those purposes.
The provisions of this chapter are intended to stabilize the residential areas and to promote a suitable environment for family life. For that reason, only a few additional and compatible uses shall be permitted.
The R-1 District is subdivided by different area requirements into R-1-A and R-1-B Districts, providing for districts of low and high density, respectively.
Except as provided in chapters 20 through 25 of this title, in any R-1 District, no building or premises shall be used and no building shall be erected or altered that is arranged, intended, or designed to be used except for one (1) or more of the uses listed in this chapter
D.C. Mun. Regs. tit. 11, r. 11-200