Jurisdiction directory
District of Columbia home project permits by county
Many District of Columbia households live outside city limits, where the county building department — not a city — issues the permit. 1 District of Columbia counties, covering the state's largest jurisdictions, are inventoried here.
Model reviewed August 2026
Counties covered
1
largest jurisdictions first
Municipalities tracked
1
in District of Columbia
Population covered
0.7M
residents in listed counties
Code basis
Statewide
DC Construction Codes, based on the IRC with District amendments
Featured counties
The largest and most active permit jurisdictions in the state.
All District of Columbia counties we cover
1 counties, largest first.
Sources
Sources & verification
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.