New Jersey (NJ) Building Permit & Cost Directory
Explore municipal permit requirements, Bureau of Labor Statistics (BLS) contractor wages, and real-time residential cost calculators across all 21 counties in New Jersey for 2026.
New Jersey Residential Building Code & Licensing Overview
Statewide compliance standards and contractor mandates
Residential home renovations in New Jersey are regulated under the state building code adapted from the International Residential Code (IRC). Permits are mandated for all structural repairs, complete roof replacements exceeding 100-200 square feet, HVAC compressor and furnace retrofits, and electrical service upgrades.
General contractors and trade specialists must carry valid state licenses and verified worker's compensation coverage.
Homeowners may pull permits on their primary dwelling, assuming full civil liability for code compliance and passing inspections.
Find Your County in NJ
Type your county or city name below to instantly isolate local building departments and cost calculators.
All New Jersey Counties (21)
Click any county below to calculate local permit costs, view inspector notes, and check trade wages.
Atlantic County
Est. Permit: $181 • BLS $38.64/hr
Bergen County
Est. Permit: $181 • BLS $38.64/hr
Burlington County
Est. Permit: $181 • BLS $38.64/hr
Camden County
Est. Permit: $181 • BLS $38.64/hr
Cape May County
Est. Permit: $181 • BLS $38.64/hr
Cumberland County
Est. Permit: $181 • BLS $38.64/hr
Essex County
Est. Permit: $181 • BLS $38.64/hr
Gloucester County
Est. Permit: $181 • BLS $38.64/hr
Hudson County
Est. Permit: $181 • BLS $38.64/hr
Hunterdon County
Est. Permit: $181 • BLS $38.64/hr
Mercer County
Est. Permit: $181 • BLS $38.64/hr
Middlesex County
Est. Permit: $181 • BLS $38.64/hr
Monmouth County
Est. Permit: $181 • BLS $38.64/hr
Morris County
Est. Permit: $181 • BLS $38.64/hr
Ocean County
Est. Permit: $181 • BLS $38.64/hr
Passaic County
Est. Permit: $181 • BLS $38.64/hr
Salem County
Est. Permit: $181 • BLS $38.64/hr
Somerset County
Est. Permit: $181 • BLS $38.64/hr
Sussex County
Est. Permit: $181 • BLS $38.64/hr
Union County
Est. Permit: $181 • BLS $38.64/hr
Warren County
Est. Permit: $181 • BLS $38.64/hr
Frequently Asked Questions: New Jersey Building Permits
How much does a building permit typically cost in New Jersey?
Across New Jersey, the baseline residential permit filing fee averages $181.18. Total permit costs are calculated based on valuation formulas (typically $5 to $15 per $1,000 of project value) plus electrical, mechanical, and plan review inspection surcharges.
Do I need a building permit for roof replacement in New Jersey?
Yes. In virtually all New Jersey county jurisdictions, roof replacements involving more than 100 square feet (1 roofing square) or involving any structural decking, rafter, or truss repair require a formal building permit and at least one in-progress or final roof inspection.
What is the average trade wage for contractors in New Jersey?
According to the latest Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics (OEWS), the median hourly rate for licensed residential construction trades in New Jersey is approximately $38.64/hr, varying based on metropolitan vs rural location.