Do I need a permit for a full bathroom remodel in
Kearny, NJ?

Kearny bathroom remodel permits — the key details

Kearny Building Department requires a permit for any bathroom remodel involving plumbing relocation, electrical work, or ventilation changes. New Jersey State Building Subcode, which Kearny has adopted, bases bathroom standards on the 2020 International Building Code (IBC). The core triggers are straightforward: moving a toilet, sink, or shower; running new circuits for heated floors, ventilation fans, or lighting; installing new exhaust ductwork; or converting a tub to a walk-in shower (or vice versa). The conversion issue is critical because tub-to-shower changes require a waterproofing assembly specification (cement board plus membrane, or equivalent), and the inspector must verify the assembly meets IRC R702.4.2 before drywall closure. If your remodel is surface-only — new tile over existing substrate, vanity replacement without moving drain lines, faucet swap-out, mirror install — no permit is needed. This exemption applies only if plumbing rough-in, framing, and electrical circuits remain untouched.

Electrical requirements in Kearny bathrooms are stricter than many homeowners expect, driven by 2020 IBC updates that New Jersey adopted. Every outlet within 6 feet of a sink must have GFCI protection (outlet-style or breaker-style) per IRC E3902. Any new or replaced outlet within 6 feet of a tub or shower needs GFCI. Additionally, all lighting circuits in the bathroom must have AFCI (arc-fault circuit interrupter) protection on the breaker, unless the circuit serves only one bathroom and the breaker is within 50 feet of the bathroom — a nuance that trips up DIY electricians. The permit application must include an electrical plan showing every outlet, switch, light, exhaust fan, and heated-floor circuit with protection type labeled. Kearny inspectors are thorough on this; incomplete electrical plans are the leading cause of permit rejections for bathroom remodels. If you hire a licensed electrician (required in New Jersey for any new circuits), they'll handle the plan. If you're doing cosmetic-only work, you do not need a licensed electrician, and no permit is required.

Plumbing and ventilation changes trigger the most detailed review. If you're relocating a fixture, the drain must slope 1/4 inch per foot minimum (per IRC P2706) and trap-arm length cannot exceed the trap-diameter multiplied by 3 (typically 3-4 feet for a P-trap). Many DIY relocations fail inspection because the new drain line is undersized or too long. Exhaust fans must duct to the exterior, not into attic or crawlspace (common code violation); the duct must be smooth-wall, minimum 4-inch diameter, and the exterior termination must have a damper. If your home is pre-1978, any work that disturbs painted surfaces requires lead-safe work practices under New Jersey Department of Health standards — the contractor must be lead-certified, notify the Building Department at permit intake, and follow containment and cleanup rules. This adds time and cost, but it is non-negotiable. Kearny does not administer lead rules directly; state NJDOH does, but Kearny Building Department will require proof of compliance before final sign-off.

Kearny's permit process is in-person filing, which differs from some neighboring municipalities. You must visit City Hall with a completed DOA (Department of Overseeing Agencies) permit application, site plan (even for a single-bathroom remodel, a 1/4-inch scale floor plan showing fixture locations and rough dimensions is required), electrical plan (if applicable), and proof of ownership or authorization. The Building Department will perform over-the-counter review of completeness and may issue or request revisions on the same day, or they may flag the application for a full-review cycle (typically 5-10 business days). There is no online portal to pull Kearny permits; you cannot avoid the in-person trip. Processing time from filing to permit issuance is typically 2-5 business days for a straightforward remodel. Once you have the permit, you can begin work (usually rough-in first), and the inspection schedule is coordinated by phone with the Building Department. Rough plumbing and electrical inspections typically occur within 3-5 days of request; final inspection follows substantial completion and typically takes 2-3 days. The fee is based on estimated project valuation; a full bathroom remodel (including fixtures, finishes, labor estimate) of $15,000–$20,000 typically costs $300–$600 in permit fees.

Owner-builders are allowed in Kearny for owner-occupied homes, but the homeowner must pull the permit in their name and be on-site during all work. You cannot hire a contractor to do the work and then pull the permit yourself as owner-builder; New Jersey law requires the permit-holder to be the person performing the work or the property owner directly supervising. If you hire a licensed plumber or electrician, they can do the rough-in under your permit, but you are legally responsible for code compliance and inspection coordination. Many Kearny homeowners hire a general contractor to manage the remodel but pull the permit themselves to save on permit-transfer fees; this is allowed but comes with liability risk if inspections fail. Lead-paint work must be done by a certified lead contractor, not owner-builder, so if your home is pre-1978, you will need a licensed contractor for any surface disturbance. Pre-permit, verify your home's construction date through Kearny assessment records (available at City Hall or online via the county assessor) to confirm whether lead rules apply.

Three Kearny bathroom remodel (full) scenarios

Waterproofing and tub-to-shower conversions in Kearny bathrooms

Tub-to-shower conversions are a common remodel trigger in Kearny, particularly in older homes where bathtubs are being phased out in favor of walk-in showers. The code requirement that trips up most homeowners is IRC R702.4.2, which mandates a fully bonded waterproofing membrane beneath all tile in wet areas of the bathroom. For a shower, this means a substrate (typically cement board or fiber-cement) covered with a thin-set mortar and a liquid or sheet membrane (Schluter, Kerdi, Aqua Defense, or equivalent) before tile installation. Generic backer board alone is not sufficient; the membrane is mandatory. Kearny Building Department inspectors will ask to see the membrane brand and specification on the permit plan. Many homeowners and tile setters assume that tile plus thin-set equals waterproofing; it does not. The inspection typically occurs after drywall but before tile, so the inspector can verify the substrate and membrane are in place and properly sealed at corners, seams, and flashing. If the inspection finds bare cement board with no membrane, the work must stop and the membrane must be installed before proceeding. This delay costs $500–$1,500 and extends the timeline by 1-2 weeks. Specification mistakes on the permit plan (failing to list the membrane brand, or listing a generic "waterproofing" with no detail) are the leading cause of permit rejections for bathroom remodels in Kearny.

Lead-paint rules and pre-1978 bathroom remodels in Kearny

New Jersey law requires lead-safe work practices for any project that disturbs painted surfaces in homes built before 1978. For bathroom remodels, this typically applies to tile removal, wall demolition, and cabinet removal. The work must be performed by a New Jersey Department of Health-certified lead contractor or a homeowner who has completed lead-safety training (rarely done for single projects). The contractor must notify the Kearny Building Department at permit intake that lead-safe work will be performed, and the Building Department will add a lead notation to the permit. The actual lead rules (containment, HEPA vacuuming, waste disposal, clearance testing) are administered by NJDOH, not Kearny Building Department, but Kearny will not issue a final permit sign-off for a pre-1978 home without proof of lead-safe compliance (typically a contractor certification or clearance report). This adds $2,000–$4,000 to a full bathroom remodel and extends timeline by 1-2 weeks for clearance testing. Many homeowners discover their home is pre-1978 only after pulling the permit; verify your home's year of construction at Kearny City Hall or the county assessor's office before budgeting. If you ignore lead rules and do surface disturbance without certification, you risk a $5,000–$10,000 Department of Health fine and forced re-work. It is not worth the risk.

Common questions