Jurisdiction directory

Maine home project permits by county

Many Maine households live outside city limits, where the county building department — not a city — issues the permit. 5 Maine counties, covering the state's largest jurisdictions, are inventoried here.

Model reviewed August 2026

Counties covered

largest jurisdictions first

Municipalities tracked

in Maine

Population covered

0.9M

residents in listed counties

Code basis

Statewide

Maine Uniform Building and Energy Code (MUBEC) in towns over 4,000 residents

Featured counties

The largest and most active permit jurisdictions in the state.

Cumberland County306,000 residents · seat Portland York County217,000 residents · seat Alfred Penobscot County152,000 residents · seat Bangor Androscoggin County112,000 residents · seat Auburn Kennebec County124,000 residents · seat Augusta

All Maine counties we cover

5 counties, largest first.

Cumberland CountySeat: Portland · 306,000 residents York CountySeat: Alfred · 217,000 residents Penobscot CountySeat: Bangor · 152,000 residents Kennebec CountySeat: Augusta · 124,000 residents Androscoggin CountySeat: Auburn · 112,000 residents

Sources

Sources & verification

Maine Bureau of Building Codes and Standards

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.