D.C. Mun. Regs. tit. 11, r. 11-K501
The CG-1 zone is intended .
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The development standards of Subtitle K §§ 501.3 to 501.11 shall control the bulk of buildings in CG-1 zone.
The maximum permitted floor area ratio (FAR) in the CG-1 zone shall be 6.0, or 7.2 for Inclusionary Developments.
The maximum permitted building height, not including the penthouse or rooftop structure, in the CG-1 zone shall be ninety feet (90 ft.). Subtitle K § 510 contains design-related conditions on height and upper story setbacks for South Capitol Street, a designated street of Subtitle K § 508.
The maximum permitted height of a penthouse or rooftop structure in the CG-1 zone shall be twenty feet (20 ft.), and the maximum number of shall be one (1) plus a mezzanine, except that a second story for penthouse mechanical space shall be permitted.
The maximum permitted lot occupancy for residential use in the CG-1 zone shall be seventy-five percent (75%), or ninety percent (90%) for Inclusionary Developments.
A minimum rear yard of fifteen feet .
No side yard is required for the principal building; however, any side yard provided to any portion of the principal building shall be at least three inches (3 in.) per one foot (1 ft.) of height, and no less than five feet (5 ft.).
Where an open court is provided, the court shall have the following minimum dimensions:
TABLE K § 501.9: MINIMUM COURT DIMENSIONS
| Type of Structure | Minimum Width Open Court | Minimum Width Closed Court | Minimum Area Closed Court |
| Residential (except hotel): | 4 in./ft. of height of court; 10 ft. minimum. | 4 in./ft. of height of court; 15 ft. minimum. | Twice the square of the required width of court dimension; 350 sq. ft. minimum. |
| Non-Residential and Lodging: | 2.5 in./ft. of height of court; 6 ft. minimum. | 2.5 in./ft. of height of court; 12 ft. minimum. | Twice the square of the required width of court dimension; 250 sq. ft. minimum. |
In the case of an alteration affecting the amount of light and ventilation required in an existing building in a Residence District by other municipal law or regulation, no legally required window shall be permitted to open onto a court that does not comply with the dimensions given in Subtitle K § 501.9.
The minimum required green area ratio (GAR) for the CG-1 zone shall be 0.3.
D.C. Mun. Regs. tit. 11, r. 11-K501