New Jersey · Penalties if you skip one

What you can build without a permit in New Jersey

By Mario Bailey Last checked · 9 official sources

Quick answer

Across the 2 New Jersey jurisdictions we have verified, 1 of 23 project rules need no permit at all, 14 turn on a size or scope condition the jurisdiction publishes, and 8 require a permit regardless. Fence work is where the answer most often comes with a published condition rather than a flat yes: 2 of the 2 jurisdictions that answer publish one.

How to read this page

"No permit" means the jurisdiction publishes that the work needs no building permit. "Depends" means it publishes a size, height, depth, cost or scope condition that decides the answer, quoted in its own words in the last column; the number beside it is the figure that condition turns on, and which side of the number is exempt is stated by the condition, not by us. Exempt from a building permit is not exempt from zoning, setbacks, height limits, flood rules, an HOA, or a separate electrical, plumbing or mechanical permit, and several of the conditions below say exactly that.

Fence

All 2 make the fence answer turn on a size or scope condition the jurisdiction publishes, and the 2 that state a number all publish 6 feet.

Jurisdiction Permit Published figure What the rule says
Jersey City Depends 6 feet permit required if fence exceeds 6 feet or acts as a pool barrier.
Newark Depends 6 feet fence height at which a construction permit becomes required; swimming pool barriers are excluded from the exemption at any height.

Patio

All 2 make the patio answer turn on a size or scope condition the jurisdiction publishes.

Jurisdiction Permit Published figure What the rule says
Jersey City Depends at-grade pavers or cement (concrete) patios do not require a construction-code permit (zoning approval is required separately); an elevated deck-type patio structure requires a construction permit.
Newark Depends A covered patio is regulated construction in New Jersey: the state adopts Appendix AH, Patio Covers, as part of the one- and two-family dwelling subcode that Newark enforces, so a patio cover needs a construction permit under N.J.A.C. 5:23-2.14(a).

Pool

All 2 make the pool answer turn on a size or scope condition the jurisdiction publishes.

Jurisdiction Permit Published figure What the rule says
Jersey City Depends 24 inches permit required for all pools that can hold more than 24 inches of water.
Newark Depends Pools are construction and need a Newark permit under N.J.A.C. 5:23-2.14(a); the city's building subcode technical section carries 'Pool' as a work type and its electrical section carries 'Pool Permit/with UW Lights'. The one published carve-out is narrow: installing a storable spa or hot tub fitted with a lockable safety cover meeting ASTM F1346 is ordinary maintenance and needs no building permit.

Roof Replacement

Jersey City requires no roof replacement permit at all. 1 of 2 makes the roof replacement answer turn on a size or scope condition the jurisdiction publishes.

Jurisdiction Permit Published figure What the rule says
Jersey City No permit Replacing or repairing the roof covering on a detached one- or two-family home is classified as ordinary maintenance under the New Jersey Uniform Construction Code (N.J.A.C. 5:23-2.7), so no construction permit or inspection is required in Jersey City.
Newark Depends Repairing or replacing the existing roof covering on a detached one- or two-family dwelling is ordinary maintenance under N.J.A.C. 5:23-2.7 and needs no Newark permit, inspection or notice.

Shed

All 2 make the shed answer turn on a size or scope condition the jurisdiction publishes, and the 2 that state a number all publish 200 sq ft.

Jurisdiction Permit Published figure What the rule says
Jersey City Depends 200 sq ft no construction permit required for garden-type utility sheds 200 sq ft or less and 10 ft or less in height with no utility connections.
Newark Depends 200 sq ft shed floor area, for a structure 10 feet or less in height with no water, gas, oil or sewer connection.

Deck

1 of 2 makes the deck answer turn on a size or scope condition the jurisdiction publishes. Jersey City requires a permit for deck work regardless of size.

Jurisdiction Permit Published figure What the rule says
Newark Depends Building a new deck in Newark requires a construction permit under N.J.A.C. 5:23-2.14(a), which the city's Construction Code Enforcement office issues.
Jersey City Permit required A building permit is required for all new residential deck construction in Jersey City.

Electrical

1 of 2 makes the electrical answer turn on a size or scope condition the jurisdiction publishes. Jersey City requires a permit for electrical work regardless of size.

Jurisdiction Permit Published figure What the rule says
Newark Depends Newark's own electrical subcode ordinance requires a permit from the central permit office before any covered electrical work is installed, altered or repaired, and it lists its own local exceptions: work at a potential of less than 10 volts, minor repair work such as replacing lamps, fuses, sockets, receptacles, snap switches and ballasts, connecting portable appliances to existing receptacles, and repairing or replacing fractional-horsepower motors in kind with no change to circuit wiring or overcurrent protection.
Jersey City Permit required Jersey City enforces the New Jersey Uniform Construction Code which requires an electrical subcode permit for residential electrical work including new wiring, service upgrades, and panel work.

HVAC

1 of 2 makes the HVAC answer turn on a size or scope condition the jurisdiction publishes. Jersey City requires a permit for HVAC work regardless of size.

Jurisdiction Permit Published figure What the rule says
Newark Depends Swapping out heating or cooling equipment in Newark requires a permit, but New Jersey classifies it as 'minor work', which means you may start once you have given the Building Division notice and then file the permit application within five business days.
Jersey City Permit required Jersey City enforces the New Jersey Uniform Construction Code which requires a mechanical subcode permit for HVAC installations and major replacements.

Plumbing

1 of 2 makes the plumbing answer turn on a size or scope condition the jurisdiction publishes. Jersey City requires a permit for plumbing work regardless of size.

Jurisdiction Permit Published figure What the rule says
Newark Depends Plumbing in Newark runs through the plumbing subcode section of the single construction permit, and most jobs need one.
Jersey City Permit required Jersey City enforces the New Jersey Uniform Construction Code which requires a plumbing subcode permit for residential plumbing installations and alterations.

Bathroom Remodel

All 1 makes the bathroom remodel answer turn on a size or scope condition the jurisdiction publishes.

Jurisdiction Permit Published figure What the rule says
Jersey City Depends Like-for-like work is exempt as ordinary maintenance; anything moving systems needs a permit.

If the work is already built

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.

New Jersey penalties, the after-the-fact path, and what the statute actually says

The 23 answered rules come from 9 official sources, each linked from the permit page behind every jurisdiction name. See the full picture for the state on the New Jersey permit requirements page, or the national view of which projects need a permit at all on Do you need a building permit?

This page compiles what each New Jersey jurisdiction publishes, with a last checked date. It is not legal advice, and a project that is exempt from a building permit can still need zoning approval or a trade permit. Confirm with the office linked from the jurisdiction's page before you build.