Building without a permit in New Jersey

What New Jersey law says

New Jersey sets Uniform Construction Code penalties statewide. A penalty for failure to obtain a required permit before starting construction shall not exceed $2,000 per violation. A person is guilty of a separate offense for each day they fail to comply with a stop construction order, and for each week of noncompliance with any other order. Penalties are collected in summary proceedings by the municipality or the State, and stop construction order authority is in N.J.S.A. 52:27D-132.

Cited from N.J.S.A. 52:27D-138(a), (c), (e)(2); 52:27D-132: official text. Localities enforce these rules and may add their own fees and procedures on top.

Can you get a permit after the work is done?

The New Jersey UCC has no as-built or investigation-fee provision; it is unlawful to build without first obtaining the permit, and unpermitted work is handled through the enforcement and penalty process. After-the-fact filing is expressly allowed only for emergency work (permit application within 72 hours) and minor work (notice before starting, completed application within five business days). Otherwise the owner must still obtain the permit and inspections to abate the violation, and any extra fee is local practice.

Cited from N.J.A.C. 5:23-2.14(a), (b)3; 5:23-2.17A(b): official text.

The typical path, whatever your locality calls it: stop any ongoing work, contact the permit office before they contact you, apply for the permit describing what was actually built, and expect the office to require opening up or inspecting concealed work. Voluntarily coming forward generally goes better than waiting for a complaint or a sale to surface it.

Who can pull the permit

Yes, for an owner-occupied single-family home. The UCC provides that plumbing, electrical, heating, ventilating, air conditioning, and refrigeration work shall not be undertaken except by licensed persons, except in the case of a single-family homeowner on his or her own dwelling. The same section extends the homeowner exception to LP-gas work. A homeowner acting as their own general contractor on a new one- or two-family dwelling files an affidavit acknowledging the work is not covered by the New Home Warranty program. The homeowner provision covers the owner's own dwelling only; work on rentals, multifamily buildings, or others' homes requires licensed contractors.

Cited from N.J.A.C. 5:23-2.15(b)2i, (b)3i, (b)1i: official text.

Your local permit office

Enforcement, after-the-fact fees, and the exact fix-it process are local. We cover these New Jersey permit offices:

• Jersey City

Official sources

• https://www.nj.gov/dca/codes/codreg/pdf_regs/52_27D_119.pdf
• https://www.nj.gov/dca/codes/codreg/pdf_regs/njac_5_23_2.pdf
• https://www.nj.gov/dca/codes/publications/pdf_other/homeowners_guide_electric_vehicles_charging_stations.pdf