712.1 All parking spaces and parking aisles, whether required or not required, shall conform to the dimensional requirements of this section, except as provided in Subtitle C §§ 712.2 and 717.

712.2 An automated parking garage is exempt from the requirements of this section.

712.3 The minimum parking space dimensions shall be provided as follows:

(a) Subject to paragraph (f), when four (4) or more spaces are required, at least fifty percent (50%) of the spaces shall meet or exceed the full-sized dimensions specified in Subtitle C § 712.5;

(b) Subject to paragraph (f), when three (3) spaces are required, at least one (1) of the spaces shall meet or exceed the full-sized dimensions specified in Subtitle C § 712.5 and the others shall meet or exceed the compact-sized dimensions specified in Subtitle C § 712.6;

(c) Subject to paragraph (f), when two (2) or fewer spaces are required, they may meet or exceed the compact-sized dimensions specified in Subtitle C § 712.6;

(d) Notwithstanding Subtitle A § 102.6 and Subtitle C § 701.14, any existing parking space may be reduced in size in conformance with the requirements of this subsection by obtaining a building permit approved as zoning compliant;

(e) No parking space, whether required or not required, shall have dimensions less than the compact-sized dimensions specified in Subtitle C § 712.6; and

(f) No parking space, whether required or not required, shall have a length less than the full-sized dimensions specified in Subtitle C § 712.5 if the space is directly accessible from a public alley that is fifteen (15) feet or less in width.

712.4 Parking spaces provided on the same lot as a historic resource shall meet the minimum dimensional requirements of Subtitle C § 712.6.

712.5 The minimum dimensions for full-sized parking spaces and aisles are as follows:

TABLE C § 712.5: MINIMUM DIMENSIONS FOR FULL-SIZED PARKING SPACES AND AISLES

Parking Angle	Stall Width	Depth of Stalls Perpendicular to Aisle	One-Way Drive Aisle Width	Two-Way Drive Aisle Width
45°	9 ft.	17.5 ft.	17 ft.	N/A
60°	9 ft.	19 ft.	17 ft.	N/A
90°	9 ft.	18 ft.	20 ft.	20 ft.
Parallel	22 ft.	8 ft.	12 ft.	20 ft.

712.6 The minimum dimensions for spaces and aisles exclusively for compact parking spaces are as follows:

TABLE C § 712.6: MINIMUM DIMENSIONS FOR COMPACT PARKING SPACES AND AISLES

Parking Angle	Stall Width	Depth of Stalls Perpendicular to Aisle	One-Way Drive Aisle Width	Two-Way Drive Aisle Width
45°	8 ft.	16.5 ft.	16 ft.	N/A
60°	8 ft.	17 ft.	16 ft.	N/A
90°	8 ft.	16 ft.	20 ft.	20 ft.
Parallel	20 ft.	8 ft.	12 ft.	20 ft.

712.7 All parking spaces and access ways to and from spaces shall have a minimum vertical clearance of six feet, six inches (6 ft., 6 in.).

712.8 Above grade parking areas shall be designed so that no vehicle shall project over any lot line, front setback line, or building restriction line.

712.9 Except on a lot that only has one (1) or two (2) dwelling units, all parking areas and spaces shall be designed and operated so that sufficient access and maneuvering space is available to permit the parking and removal of any vehicle without moving any other vehicle onto public space.

712.10 All individual compact parking spaces shall be clearly labelled as such on all plans and at the site.

712.11 The Board of Zoning Adjustment may grant relief from the requirements of Subtitle C §§ 712.3, 712.5, and 712.6 as a special exception under Subtitle X, Chapter 9 and subject to the following:

1. (a) The Office of Zoning shall refer any request under this subsection to the Office of Planning and the District Department of Transportation for review and comment;
2. (b) For a request for relief from the ratio requirement of Subtitle C § 712.3 the applicant shall demonstrate to the Board's satisfaction a reasonable difficulty in providing the number of full-sized parking spaces;
3. (c) A request for relief from the dimensional requirements for drive aisles of Subtitle C §§ 712.5 and 712.6 shall be accompanied by vehicle movement and turning diagrams demonstrating to the Board's satisfaction that vehicles of average dimensions would be able to safely and efficiently access the parking spaces affected by such relief;
4. (d) No parking space, whether required or not required, shall have dimensions less than the compact-sized dimensions specified in Subtitle C § 712.6;
5. (e) The Board shall grant relief only to the degree that the applicant demonstrates that physical constraints prevent it from reasonably complying with the requirements; and
6. (f) The Board may grant full or partial relief.

SOURCE: Final Rulemaking published at 63 DCR 2447, 2712 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 68 DCR 8898 (August 27, 2021).