A minimum required rear yard of twenty feet (20 ft.) shall be provided in the StE-10, StE-14A, and StE-14B zones.
No part of a building within the StE-6, StE-13, and StE-16 zones shall project above plane drawn at a forty-five degree (45°) angle from a line located seventy-five feet (75 ft.) directly above the eastern property line that abuts the ravine.
D.C. Mun. Regs. tit. 11, r. 11-K606