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
Cities we cover in District of Columbia
Live dataExplore live, sourced permit activity for each District of Columbia jurisdiction.
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
District of Columbia ADU & permit data — FAQ
Does District of Columbia allow accessory dwelling units (ADUs)?
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.
What is District of Columbia's missing-middle / upzoning law?
Residential density in the District is governed by D.C.'s zoning code; there is no separate statewide upzoning law.
Where does Igni get District of Columbia permit data?
Sourced live from the District's open-data portal (opendata.dc.gov, DC Department of Buildings; public domain).
Which District of Columbia cities does Igni cover?
Igni has live permit coverage for Washington in District of Columbia, with more jurisdictions expanding.
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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.