D.C. Mun. Regs. tit. 11, r. 11-1607
The following provisions apply to new buildings, structures, or uses with frontage on Half S.E. south of M Street S.E., within the CG Overlay.
Any portion of a building or structure that exceeds sixty-five (65) feet in height shall provide a minimum step-back of twenty (20) feet in depth from the building line along Half Street S.E. Pursuant to § 3104, the Zoning Commission may grant relief from this requirement, to a maximum of fifteen (15) feet in height and eight (8) feet in depth, for the provision of reasonable development footprints.
Each new building shall devote not less than seventy-five percent (75%) of the gross floor area of the ground floor to retail, service, entertainment, or arts uses ("preferred uses") as permitted in §§ 701.1 through 701.5 and §§ 721.1 through 721.6 of this Title; provided, that the following uses shall not be permitted: automobile, laundry, drive-through accessory to any use, gasoline service stations, and office uses (other than those accessory to the administration, maintenance, or leasing of the building).
Preferred uses shall occupy 100% of the building's street frontage along Half Street S.E., except for space devoted to building entrances or required to be devoted to fire control.
The minimum floor-to-ceiling clear height for portions of the ground floor level devoted to preferred uses shall be fourteen (14) feet.
For good cause shown, the Zoning Commission may authorize interim occupancy of the preferred use space required by § 1607.2 by non-preferred uses for up to a five (5) year period; provided, that the ground floor space is suitably designed for future occupancy by the preferred uses.
No private driveway may be constructed or used from Half Street S.E. to any parking or loading berth areas in or adjacent to a building or structure constructed after February 16, 2007.
Where preferred use retail space is required under this section and provided, the provisions of DCMR 11 § 633 shall not apply.
D.C. Mun. Regs. tit. 11, r. 11-1607