D.C. Mun. Regs. tit. 11, § 330
330.1 The R-4 District is designed to include those areas now developed primarily with row dwellings, but within which there have been a substantial number of conversions of the dwellings into dwellings for two (2) or more families.330.2 Very little vacant land shall be included within the R-4 District, since its primary purpose shall be the stabilization of remaining one-family dwellings.330.3 The R-4 District shall not be an apartment house district as contemplated under the General Residence (R-5) Districts, since the conversion of existing structures shall be controlled by a minimum lot area per family requirement.330.4 Except as provided in chapters 20 through 25 of this title, in an R-4 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 §§ 330 through 349.330.5 The following uses shall be permitted as a matter of right in an R-4 District:- (a) Any use permitted in R-3 Districts under § 320.3;
- (b) Child/Elderly development center located in a building that was built as a church and that has been used continuously as a church since it was built; provided, that all of the play space required for the center by the licensing regulations shall be located on the same lot on which the center is located;
- (c) Child/Elderly development center or adult day treatment facility; provided, that the center shall be limited to no more than sixteen (16) individuals;
- (d) Community-based residential facility; provided that, notwithstanding any provision in this title to the contrary, the Zoning Administrator has determined that such community-based residential facility, that otherwise complies with the zoning requirements of this title that are of general and uniform applicability to all matter-of-right uses in an R-4 District, is intended to be operated as housing for persons with handicaps. For purposes of this subsection, a 'handicap' means, with respect to a person, a physical or mental impairment which substantially limits one or more of such person's major life activities, or a record of having, or being regarded as having, such an impairment, but such item does not include current, illegal use of, or addiction to, a controlled substance
- (e) The conversion of a building or other structure existing before May 12, 1958, to an apartment house as limited by §§ 401.3 and 403.2
- (f) Flat;
- (g) Hospital, sanitarium, or clinic for humans;
- (h) Museum; and
- (i) Private club, lodge, fraternity house, sorority house, or dormitory, except when the use is a service customarily carried on as a business.330.6 A rooming or boarding house shall be permitted as a matter of right in an R-4 District; provided:- (a) Accommodations are not provided to transient guests who stay ninety (90) days or
less at the premises;
(b) No sign is displayed on the premises;
(c) No advertisement is displayed or published on or off the premises holding out the establishment to be a hotel, motel, inn, hostel, bed and breakfast, private club, tourist home, guest house, or other transient accommodation;
(d) Cooking facilities are not provided in any individual unit; and
(e) In a rooming house, no central dining or food preparation area is provided for guests.
SOURCE: § 3104.1 and 3104.3 of the Zoning Regulations, effective May 12, 1958; as amended by: Final Rulemaking published at 28 DCR 3482, 3494 (August 7, 1981); Final Rulemaking published at 29 DCR 4913, 4918 (November 5, 1982); Final Rulemaking published at 35 DCR 465, 467 (January 22, 1988); by Final Rulemaking published at 36DCR 7625 (November 3, 1989); Final Rulemaking published at 46 DCMR 3997, 3998 (April 30, 1999); as amended by Notice of Emergency Rulemaking published at 47 DCR 5875(June 12, 2000); Final Rulemaking published at 47 DCR. 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8359 (October 20, 2000); and Final Rulemaking published at 49 DCR 2750 (March 22, 2002); and Final Rulemaking published at 53 DCR 10085(December 22, 2006); and as amended by Final Rulemaking published at 54 DCR 8965(September 14, 2007).