323.1 Except for the projections and encroachments specified in this section and the exceptions in Subtitle B § 324, every part of a required yard or court or other required open space shall be open and unobstructed to the sky.

323.2 Cornices and eaves may project over any required yard or court for a distance not to exceed two feet (2 ft.).

323.3 Sills, leaders, belt courses, and similar ornamental or structural features may project over any required yard or court a distance not to exceed six inches (6 in.).

323.4 The ordinary projection of skylights above the bottom of a yard or court shall be permitted if placed so as not to obstruct light and ventilation.

323.5 Awnings serving a window, porch, or door may project into a required yard or open court for a distance not to exceed forty inches (40 in.).

323.6 A chimney, smokestack, or flue may project into any required rear yard, provided the horizontal section of the projection does not exceed five square feet (5 sq. ft.).

323.7 A chimney, smokestack, or flue may project into any required side yard for a distance not to exceed two feet (2 ft.).

323.8 A self-contained air conditioner may project into any required yard or court a distance not to exceed two feet (2 ft.).

SOURCE: Final Rulemaking published at 63 DCR 2447, 2650 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 63 DCR 10932 (August 26, 2016).