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Jurisdiction directory

New Jersey home project permits by county

Many New Jersey households live outside city limits, where the county building department — not a city — issues the permit. 12 New Jersey counties, covering the state's largest jurisdictions, are inventoried here.

Model reviewed August 2026

Counties covered

12

largest jurisdictions first

Municipalities tracked

14

in New Jersey

Population covered

7.7M

residents in listed counties

Code basis

Statewide

New Jersey Uniform Construction Code, based on the IRC

Featured counties

The largest and most active permit jurisdictions in the state.

Middlesex County863,000 residents · seat New BrunswickBergen County953,000 residents · seat HackensackEssex County850,000 residents · seat NewarkHudson County724,000 residents · seat Jersey CityOcean County656,000 residents · seat Toms RiverMonmouth County643,000 residents · seat FreeholdUnion County575,000 residents · seat ElizabethCamden County524,000 residents · seat CamdenPassaic County524,000 residents · seat PatersonMorris County511,000 residents · seat MorristownBurlington County466,000 residents · seat Mount HollyMercer County387,000 residents · seat Trenton

All New Jersey counties we cover

12 counties, largest first.

Bergen CountySeat: Hackensack · 953,000 residentsMiddlesex CountySeat: New Brunswick · 863,000 residentsEssex CountySeat: Newark · 850,000 residentsHudson CountySeat: Jersey City · 724,000 residentsOcean CountySeat: Toms River · 656,000 residentsMonmouth CountySeat: Freehold · 643,000 residentsUnion CountySeat: Elizabeth · 575,000 residentsCamden CountySeat: Camden · 524,000 residentsPassaic CountySeat: Paterson · 524,000 residentsMorris CountySeat: Morristown · 511,000 residentsBurlington CountySeat: Mount Holly · 466,000 residentsMercer CountySeat: Trenton · 387,000 residents

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.