Zoning Handbook

Yard: An exterior space, other than a court, on the same lot with a building or other structure. A yard required by the provisions of this title shall be open to the sky from the ground up, and shall not be occupied by any building or structure, except as specifically provided in this title. No building or structure shall occupy in excess of fifty percent (50%) of a yard required by this title.

Yard, Front: A yard between the front façade of a building and the front lot line. The front yard when required, shall extend for the full width of the front of the lot.

Yard, Rear: A yard between the rear line of a building or other structure and the rear lot line, except as provided elsewhere in this title. The rear yard shall be for the full width of the lot and shall be unoccupied, except as specifically authorized
in this title.

Yard, rear, depth of: The mean horizontal distance between the rear line of a building and the rear lot line, except as provided elsewhere in this title.

Yard, Side: A yard between any portion of a building or other structure and the adjacent side lot line, extending for the full depth of the building or structure.

Zone: A geographic area delineated on the Zoning Map, which corresponds to the regulations included in DCMR Title 11.

Zone Boundary Line: The line that forms the perimeter of a zone, as mapped in accordance with this title.

Zoning Act: The Zoning Act of 1938, approved June 20, 1938, as amended (52 Stat. 797, as amended; D.C. Official Code §§ 6-641.01 to 641.15).

Zoning Administrator: The Zoning Administrator of the District of Columbia.

Zoning Commission: The independent quasi-judicial body charged with preparing, adopting and amending the Zoning Regulations and Zoning Map, campus plans, airspace development in public space, and planned unit developments.

Zoning Regulations, 1958: The regulations that were originally adopted and became effective at 12:01 a.m., May 12, 1958, as amended.

Zoning Regulations, 2016: The current regulations adopted through the publication of a notice of final rulemaking published in the D.C. Register on March 2, 2016 and which became effective at 12:01 a.m., September 6, 2016, as those regulations may thereafter be amended. See Subtitle A § 101.