207.1 Except as provided elsewhere in this title, the minimum required rear yard shall be as set forth in the following table:

TABLE D § 207.1: MINIMUM REAR YARD

Zones	Minimum Rear Yard (ft.)
R-1	25
R-2	20
R-3	20

207.2 In the case of a lot proposed to be used by a public recreation and community center or public library where a rear lot line abuts or adjoins a public open space, recreation area, or reservation, no rear yard shall be required.

207.3 In the case of a building existing on or before May 12, 1958, an extension or addition may be made to the building into the required rear yard; provided, that the extension or addition shall be limited to that portion of the rear yard included in the building area on May 12, 1958.

207.4 Notwithstanding Subtitle D §§ 207.1 through 207.3, a rear wall of a row or semi-detached building shall not be constructed to extend farther than ten feet (10 ft.) beyond the farthest rear wall of any adjoining principal residential building on any adjacent property.

207.5 A rear wall of a row or semi-detached building may be constructed to extend farther than ten feet (10 ft.) beyond the farthest rear wall of any adjoining principal residential building on any adjacent property if approved by the Board of Zoning Adjustment as a special exception pursuant to Subtitle X, Chapter 9, and subject to Subtitle D § 5201 if applicable.

SOURCE: Final Rulemaking published at 63 DCR 10932 (August 26, 2016); as amended by Final Rulemaking published at 65 DCR 8555 (August 17, 2018); as amended by Final Rulemaking published at 67 DCR 3776 (April 3, 2020); as amended by Final Rulemaking published at 70 DCR 011297 (August 25, 2023).