Accessory passenger automobile parking spaces elsewhere than on the same lot or part of a lot on which any principal R-1 use is permitted, except for a one-family dwelling, shall be permitted as a special exception in an R-1 District if approved by the Board of Zoning Adjustment under § 3104, subject to the provisions of this section.
Accessory parking spaces shall be in an open area or in an underground garage no portion of which, except for access, shall extend above the level of the adjacent finished grade.
Accessory parking spaces shall be located in their entirety within two hundred feet (200 ft.) of the area to which they are accessory.
Accessory parking spaces shall be contiguous to or separated only by an alley from the use to which they are accessory.
All provisions of chapter 23 of this title regulating parking lots shall be complied with, except that the Board may in an appropriate case under § 2303.3 modify or waive the conditions specified in § 2303.2 where compliance would serve no useful purpose.
It shall be deemed economically impracticable or unsafe to locate accessory parking spaces within the principal building or on the same lot on which the building or use is permitted because of the following:
Accessory parking spaces shall be so located, and facilities in relation to the parking lot shall be so designed, that they are not likely to become objectionable to adjoining or nearby property because of noise, traffic, or other objectionable conditions.
Before taking final action on an application for use as an accessory parking space, the Board shall submit the application to the D.C. Department of Transportation for review and report.
D.C. Mun. Regs. tit. 11, r. 11-214