Solar Energy in Washington, DC (2026)
2 verified solar energy rules for Washington, District of Columbia, sourced directly from the municipal code and official government pages.
Verified from official government sources
Panel Permits
DC's zoning code exempts rooftop solar panels from the standard penthouse setback rule, but only within strict height caps. On a one-family dwelling, flat, or accessory building, rooftop-mounted panels top out at 2 feet above the roof and parapet-mounted panels at 1 foot above the parapet; on any other building, panels are capped at 4 feet.
Washington DC Rooftop Solar Panel Height Rules
Some Restrictions11 DCMR § 1504.3 (Subtitle C, Chapter 15)
(d) On the roof of a one family dwelling or flat, or an accessory building to those uses, solar panels not attached to or hanging down from the side of a penthouse, rooftop structure, or parapet, that do not exceed: (1) For rooftop-mounted panels, a two feet (2 ft.) maximum height above the roof, measured from the surface of the roof upon which they sit; or (2) For parapet-mounted panels, a one...
HOA Restrictions
D.C. law bars homeowners, condo and co-op associations from banning solar panels on an owner's own unit or on a roof serving only that unit. Associations may still restrict panels on shared common areas and set non-aesthetic nuisance guidelines under D.C. Code § 8-1774.51.
Washington DC Solar Panel HOA Restrictions
Light RestrictionsD.C. Code § 8-1774.51(b)
A homeowners association, condominium owners association, or cooperative housing association shall not prohibit an owner or member from installing or using a solar energy collection device on the owner's or member's property or residential unit, or on a roof that only covers one owner's or member's property or residential unit, regardless of whether the roof is considered part of the common ele...