District of Columbia · DC
District of Columbia residential & ADU permit data
A single-jurisdiction permitting market
Housing law
In the District of Columbia, accessory dwelling units follow the District's own zoning rules rather than any statewide mandate, since D.C. is a single jurisdiction.
Residential density in the District is governed by D.C.'s zoning code; there is no separate statewide upzoning law.
Local zoning (no statewide mandate)
Jurisdictions we cover
Washington
Why Igni for District of Columbia
A dense, high-activity urban permitting market in one jurisdiction
Live Washington, D.C. permit data, sourced from official open data
Permit intelligence built on the District's robust open data
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Sourced live from the District's open-data portal (opendata.dc.gov, DC Department of Buildings; public domain).
Informational only, not legal advice. Housing law changes — verify current statutes before relying on this.