Bathroom Remodel Permit in Gurnee, IL (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

A full bathroom remodel in Gurnee requires a permit if you're relocating plumbing fixtures, adding electrical circuits, converting tub to shower, or moving walls. Surface-only work (tile, vanity swap in place, fixture replacement in existing location) does not need one.

Gurnee follows the 2021 Illinois Building Code (adopted statewide), but the City of Gurnee Building Department enforces it through a relatively streamlined online portal — you can initiate the permit application digitally and often get same-day intake feedback, which is faster than some neighboring suburbs that require in-person filing. Because Gurnee sits in northern Lake County (Climate Zone 5A), the 42-inch frost depth and glacial-till soil mean drain-line slopes and trap-arm routing are scrutinized closely; many rejected applications fail because the exhaust-fan duct termination or drain pitch isn't shown on the plan. The city also requires explicit waterproofing detail for any tub-to-shower conversion — cement board plus membrane, minimum — and GFCI/AFCI labeling on all bathroom electrical circuits. Permit fees run $250–$600 depending on valuation, with plan review typically 2–3 weeks. Owner-occupants can pull permits themselves; licensed contractors are standard for plumbing and electrical rough work.

What happens if you skip the permit (and you needed one)

Stop-work order issued by Gurnee Building Department, halting work until permit pulled and re-inspected; fines start at $500 and escalate to $5,000+ for continued violations.
Home insurance claim denial if bathroom damage (mold, flood, electrical fire) occurs after unpermitted work — policy exclusion for unpermitted modifications.
Resale disclosure requirement: Illinois Residential Real Property Disclosure Act mandates you disclose all unpermitted work to buyers; knowingly hiding it opens you to lawsuit for breach of contract or fraud, plus forced removal/remediation costs ($8,000–$25,000 for bathroom tear-out and re-do).
Mortgage or refinance lender will order title inspection or appraisal; discovery of unpermitted plumbing/electrical voids loan eligibility or forces you to pull retroactive permits (double or triple fees) before closing.

Gurnee bathroom remodel permits — the key details

The threshold for a permit in Gurnee is any alteration that changes the function, location, or design of plumbing or electrical systems in the bathroom. This means moving a toilet, relocating a vanity drain, running a new outlet, adding a GFCI circuit, or converting a tub to a walk-in shower all require a permit. The City of Gurnee adopts the 2021 Illinois Building Code, which includes IRC P2706 (drainage fittings), IRC E3902 (bathroom GFCI protection), IRC M1505 (exhaust fan ventilation), and IRC R702.4.2 (wet area waterproofing). If you are only replacing fixtures in their existing locations — swapping out a toilet for a new one, re-tiling without moving the tub, replacing a vanity faucet — no permit is needed. However, the moment you change the footprint or add new circuits, you cross the threshold. Gurnee's Building Department uses an online portal (accessible through the City of Gurnee website) where you upload your permit application, site plan, and any architectural or engineering drawings. The portal provides same-day or next-day intake review, which means you'll get feedback on missing items quickly rather than waiting for a mailed response.

One of Gurnee's stricter local enforcements is the waterproofing specification for wet areas. If your remodel includes a tub-to-shower conversion or a new shower installation, the plan must explicitly call out the waterproofing assembly: cement board + waterproof membrane (minimum), or a pre-fabricated waterproofing system. The City of Gurnee Building Department rejects many applications because applicants submit generic drawings without this detail. Similarly, any relocated drain line must show the trap arm length and slope; the maximum trap arm is 3 feet for a 1.5-inch drain (per IRC P2706.1), and this is measured carefully because Gurnee's glacial-till soil and high water table mean improper slope leads to drainage failure. Exhaust fans must duct to outside the home (not into the attic), and the duct termination must be shown on the plan with a damper. If you're adding a new exhaust fan or relocating an existing one, the ductwork and termination location are required plan items. GFCI protection for all bathroom receptacles is non-negotiable; the code requires GFCI on all receptacles within 6 feet of a sink (IRC E3902), and this must be clearly labeled on the electrical plan. Many homeowners assume their electrician will handle this, but the permit application must show GFCI layout to pass plan review.

Gurnee allows owner-builders to pull permits for their own primary residence, provided the work is performed by the owner or a licensed contractor (depending on the trade). For plumbing, you must hire a licensed plumber to do the rough and final work; you cannot do this yourself even if you own the home. The same applies to electrical — a licensed electrician must pull the electrical permit and perform all work. You can pull the overall bathroom remodel permit as the owner, but the licensed trades will hold the trade-specific permits. This two-tier system is standard in Illinois and enforced by Gurnee. If you hire a general contractor to oversee the project, they typically pull the permit and manage the licensed trades. Plan review in Gurnee usually takes 2–3 weeks; once approved, the permit is valid for 180 days. Inspections are scheduled in this order: rough plumbing (before walls are closed), rough electrical (before drywall), framing/structural (if walls are moved), and final inspection (after all work is complete and finishes are in place). If you're not moving walls or changing the structural layout, you can skip the framing inspection.

The cost of a bathroom remodel permit in Gurnee typically ranges from $250 to $600, calculated as a percentage of the project valuation. For example, a $15,000 bathroom remodel (materials and labor) would generate a permit fee of approximately $225–$300 at a rate of 1.5–2% of valuation; a $25,000 project would be $375–$500. The Building Department requires you to estimate the total project cost on the application; undervaluing the project to reduce the permit fee is considered permit fraud and can result in fines and permit revocation. If you need a plumbing permit (separate from the general bathroom permit), add $100–$150; electrical permits add $75–$150. Most homeowners bundle these into a single bathroom remodel permit to simplify the process. The application requires a completed permit form, a site plan showing the bathroom location and existing utilities, and architectural/plumbing/electrical plans showing all proposed changes. For a full remodel, at minimum you need a floor plan of the bathroom with fixture locations, drain/vent routing, and electrical outlet/circuit locations. Pre-fabricated plans from the contractor or a draftsperson cost $300–$800 and are often required for plan review.

One unique aspect of permitting in Gurnee is the Building Department's attention to compliance with the Illinois Residential Real Property Disclosure Act. If you later sell the home, you are legally required to disclose that this bathroom was remodeled with permits pulled and inspected. Conversely, if you do not pull a permit, you must disclose the unpermitted work to the buyer — failure to do so is fraud. This disclosure requirement creates strong incentive to permit all work; many homeowners discover this obligation only when they list the home for sale. Additionally, Gurnee is in an area with older housing stock (many homes built pre-1978); if your home was built before 1978, lead-paint rules apply. Any surface prep, demolition, or disturbance of existing paint requires a lead-safe renovation certificate (LSRC) or a certified lead-safe contractor. This is not part of the building permit, but it is a separate requirement that can add 1–2 weeks to the timeline and $500–$1,500 in testing and remediation costs. Check your home's age before permitting; if it's pre-1978, factor in the lead-paint compliance step early.

Three Gurnee bathroom remodel (full) scenarios

Scenario A

Tile and vanity swap, same location — Gurnee Colonial in Carrington Woods

You have a 1997 Colonial in the Carrington Woods neighborhood south of Grand Avenue. The bathroom has an original single-sink vanity and a tub-shower combo. You want to rip out the existing vanity, remove the old tile surround around the tub (carefully, to avoid lead-paint disturbance), install new subway tile, replace the faucet, and set a new double-sink vanity in the exact same location. The toilet and tub stay in place and unchanged. This is surface-only work: no new plumbing lines (the vanity drain and supply stubs are reused), no new electrical circuits (you're plugging in a bathroom fan that was already there, or using existing outlets), and no structural changes. Because the home was built in 1997, lead-paint rules do not apply. No permit is required for this scope. However, if you are removing and re-tiling the tub surround, be aware that tile-only work does not require a permit, but if you disturb the waterproofing membrane behind the tile or replace the cement board, you are making a structural change to the wet assembly and should pull a permit to ensure the new waterproofing meets code (IRC R702.4.2). Most tile contractors will advise you to pull a permit if you are replacing cement board or membrane; doing so adds $300–$400 to the project timeline (1–2 weeks for plan review and inspections) but protects you from future liability. Total project cost: $6,000–$12,000 (vanity, tile, faucet, labor). Permit fees: $0 if surface-only; $250–$350 if you pull a permit for the waterproofing detail. Timeline: 3–4 weeks if no permit; 5–6 weeks if permit pulled.

Scenario B

Full gut remodel with relocated vanity and new tub-to-shower conversion — Ranch home, west of I-94

Your 1975 ranch home west of I-94 in Gurnee has a 5x8 bathroom with an original pedestal sink, toilet, and cast-iron tub. You are gutting it: moving the vanity to the opposite wall (requiring new drain and supply lines), converting the cast-iron tub to a walk-in shower with a curb and a rainfall showerhead (requiring a new drain line and a complete waterproofing assembly), adding a new exhaust fan with exterior ductwork (existing fan exhausts into the attic, which is a code violation), and rewiring for two new GFCI outlets near the sink and a dedicated circuit for the exhaust fan. The home was built in 1975, so lead-paint remediation is required. This project touches every major system and absolutely requires a permit. The Building Department will require a plumbing plan showing the new vanity drain/trap arm length (must not exceed 3 feet for a 1.5-inch line, per IRC P2706.1), the tub-to-shower conversion with explicit waterproofing detail (cement board + membrane, minimum, or a pre-fab system), the exhaust fan ductwork routing and exterior termination, and vent-stack sizing. The electrical plan must show GFCI protection on all new receptacles within 6 feet of the sink, a dedicated circuit for the exhaust fan (15-amp, 120-volt minimum), and AFCI protection if any circuits serve the bathroom. The permit application must include a lead-paint disclosure and a plan for lead-safe renovation (LSRC contractor or certified abatement). Permit fee: $400–$550 (on a $20,000–$30,000 project valuation). Inspections: rough plumbing (after drain and supply lines are run, before walls are closed), rough electrical (after wiring is in place), drywall (if walls are being moved or re-framed), and final inspection (after all finishes are complete, fixtures are installed, and waterproofing is visible and passes). Timeline: 3–4 weeks plan review, 6–8 weeks construction, 2–3 weeks post-final inspection if punch-list items arise. Total project cost: $18,000–$32,000 (materials, licensed trades, permit, lead remediation). Risks: common rejections include missing waterproofing detail (submit a spec sheet for the membrane or system), incorrect trap arm length, missing duct termination detail, and GFCI/AFCI labeling on the electrical plan. Resubmission for missing items adds 1–2 weeks.

Permit required (relocated fixtures, new circuits, tub-to-shower conversion) | Lead-paint remediation required (pre-1978 home) | Waterproofing detail must be explicit on plan | Licensed plumber and electrician required | GFCI/AFCI circuits required on electrical plan | Total $18,000–$32,000 | Permit fees $400–$550

Scenario C

Relocated toilet only, no other changes — 2005 Colonial, north of Gurnee Avenue

Your 2005 Colonial north of Gurnee Avenue has a guest bathroom where the toilet is located directly opposite the doorway (awkward layout). You want to relocate the toilet 6 feet to the left, against the side wall, to improve sightlines and add a small closet on the opposite wall (not structural, just a cosmetic enclosure). This requires breaking the existing drain line, running a new toilet drain (with proper slope and trap arm length per IRC P2706), and capping off the old drain. No other fixtures move, no new electrical is added, no walls are removed or added (the closet is a non-structural frame). This is a plumbing-only change and requires a plumbing permit (separate from a general remodel permit, though you can bundle it). The Building Department will require a plumbing plan showing the new toilet drain line with slope, trap arm length (must be measured and confirmed ≤3 feet from the toilet bowl outlet to the vent stack or main vent), and the capped-off old drain. Because the toilet drain crosses the hallway area, a p-trap access point may be required (check with the plumber). A licensed plumber must pull the plumbing permit and perform all work. Permit fee: $100–$150 for the plumbing-only permit. Inspections: rough plumbing (before walls/flooring are finished) and final inspection (after toilet is installed and drain is tested). Timeline: 1–2 weeks plan review, 1–2 weeks construction, 1 week inspection. Total project cost: $3,000–$6,000 (materials, plumbing labor, permit). No lead-paint issue (home built in 2005). A common mistake is not showing the trap arm length on the plan; Gurnee's Building Department will reject the application if this dimension is missing. Another is not confirming vent-stack location — if the new drain line runs far from the existing vent, a new secondary vent may be required, adding cost and complexity.

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Gurnee's frost depth, glacial till, and drain-line requirements

Gurnee sits in northern Lake County, Illinois, Climate Zone 5A with a 42-inch frost depth. While this primarily affects exterior drainage and foundation work, it indirectly impacts interior bathroom remodels because the Building Department cross-references frost-depth rules when reviewing interior drain routing. If your bathroom remodel includes a new drain line that runs horizontally through a wall or under a floor near the foundation, the inspectors want to confirm that the line has adequate pitch (minimum 1/4 inch per foot) to prevent ice buildup in winter months. The glacial-till soil in northern Gurnee is dense and clay-heavy, which means the water table fluctuates seasonally; interior bathroom drains that slope incorrectly or are undersized for the fixture load will back up or move slowly, especially in spring and fall when groundwater is high. This is why trap arm length is strictly enforced in Gurnee — a drain line that appears to work in summer may fail in March.

When you submit a bathroom remodel plan to Gurnee's Building Department, the plumbing inspector will scrutinize the trap arm length (distance from the toilet, vanity, or tub outlet to the vent stack or main vent line). IRC P2706.1 sets the maximum at 3 feet for a 1.5-inch drain; Gurnee enforces this strictly. If your bathroom is far from an existing vent stack and the new drain line would exceed 3 feet before reaching a vent, the code requires a secondary vent (also called a vent extension) to be installed, which adds cost and complexity. Many older Gurnee homes have single-vent configurations where all drains feed one vertical stack; relocating a fixture far from that stack may require a new vent line to be run, which can push up the project cost by $1,500–$3,000. This is not negotiable; it is code compliance, not a suggestion. If the plumber estimates the trap arm at 3 feet and you trust their experience, confirm the dimension on the permit plan before submittal.

Another frost-depth-related issue in Gurnee is basement or below-grade drainage. If your bathroom is in a basement and the new drain line must connect to the main sewer line (which is typically below the frost line), the inspector will verify that the line has adequate slope all the way to the foundation. If the basement floor is wet or has a history of seepage, the Building Department may require a sump pump or a French drain to manage groundwater before the plumbing work can proceed. This is not typical for a full bathroom remodel, but if your home is in a flood zone or near a low-lying area in Gurnee, factor in this possibility. Contact the Building Department early if you suspect drainage issues.

To avoid delays, submit a plumbing plan that explicitly shows trap arm length, vent-stack location, and slope diagram. A simple hand-drawn diagram with measurements is acceptable; you do not need CAD drawings for a residential bathroom. Most plumbers include this in their estimate; if yours doesn't, ask for it before work begins. This saves weeks of back-and-forth with the Building Department.

Waterproofing assemblies, lead-paint remediation, and the Illinois disclosure rule

Gurnee's Building Department requires explicit waterproofing detail for any shower or tub installation, especially when converting a tub to a shower. Many applicants submit a generic bathroom floor plan and expect approval; instead, they receive a rejection notice requesting the waterproofing spec. The code (IRC R702.4.2) requires a water-resistant barrier behind all wet areas: either cement board plus a liquid-applied or sheet membrane, or a pre-manufactured waterproofing system (such as Schluter, Wedi, or similar). When you pull a permit for a tub-to-shower conversion, the application must include a product specification (brand name, model number) or a schematic showing the membrane and cement board layers. A simple note like 'cement board and waterproof membrane per IRC R702' is not enough; the Building Department wants to know exactly what product you're installing. This specification goes on the permit plan and is verified during the rough inspection (before drywall is installed) and the final inspection (after tile is set). If you change products mid-project, notify the Building Department immediately; using a product not specified on the permit can result in a failed inspection and a requirement to remove and redo the work.

If your Gurnee home was built before 1978, lead-paint remediation is a separate but mandatory requirement. Lead dust is a health hazard, especially for children and pregnant women. The Illinois Environmental Protection Agency (EPA) requires a Renovation, Repair, and Painting (RRP) certificate or a lead-safe work practices plan for any home built before 1978. A full bathroom remodel — especially one involving demolition and surface prep — triggers RRP requirements. You have two options: (1) hire a Certified Lead-Safe Contractor to perform all work, or (2) obtain an LSRC (Lead-Safe Renovation Certificate) through an EPA-approved training course and implement lead-safe work practices yourself. Most homeowners use option 1. The cost of a lead-safe contractor is 10–20% higher than a standard contractor, and lead abatement or encapsulation can add $500–$2,000 to a bathroom remodel. The Building Department does not enforce lead-paint rules directly — that is the EPA and the Illinois Department of Public Health — but lenders and insurance companies ask about lead compliance, and if you do not comply, you may face fines or insurance denial. Factor lead remediation into your timeline and budget for homes built before 1978.

Illinois state law (the Residential Real Property Disclosure Act) requires homeowners to disclose all unpermitted work and all permitted work to buyers during a real estate transaction. This applies to every jurisdiction in Illinois, including Gurnee. If you pull a permit and pass inspections, the work is compliant and you disclose it as 'permitted and inspected bathroom remodel.' If you do not pull a permit, you must still disclose the work as 'unpermitted bathroom remodel,' which red-flags the property and often leads to buyer demands for remediation or a price reduction. Some lenders will not finance a home with significant unpermitted work. Many homeowners skip the permit to save money, only to discover — when selling or refinancing — that unpermitted work costs far more to disclose or fix. Gurnee's Building Department records all permits by property address, so if you pull a permit, that record exists. Conversely, if you don't pull a permit and the work is later discovered (during an appraisal, home inspection, or sale), you are liable for fraud if you knowingly hide it from the buyer.

Before you start a bathroom remodel, check the age of your home. If it was built before 1978, contact the Building Department for lead-paint guidance. If it was built in 1978 or later, you do not need an LSRC, but the Building Department still wants your permit plan to show all waterproofing detail. In both cases, pull the permit early — do not wait until framing is already exposed. An approved permit plan is your best protection against costly rejections and rework.

City of Gurnee Building Department
Contact City of Gurnee City Hall at 6340 Polivka Lane, Gurnee, IL 60031 (or check the city website for the dedicated Building Department address)
Phone: 847-599-7500 (main city number; ask for Building Department) | https://www.gurnee.il.us (check the 'Permits & Inspections' or 'Building Department' section for online portal access)
Monday–Friday, 8:00 AM–5:00 PM (local office hours; verify online before visiting)

Common questions

Do I need a permit if I'm just replacing my bathroom fixtures in the same location?

No, if you are only replacing a toilet, faucet, or vanity in the same location without relocating any plumbing or electrical, no permit is required. However, if you are removing and re-tiling around the tub and disturbing the cement board or waterproofing membrane, you should pull a permit to ensure the new waterproofing meets code. Check with your contractor if you are unsure whether your scope triggers a permit.

How long does plan review take for a bathroom remodel permit in Gurnee?

Plan review typically takes 2–3 weeks from submission to approval or request for revisions. If the Building Department requests changes (such as clarifying waterproofing detail or trap arm length), you have 10 business days to resubmit; another 1–2 weeks of review follows. If your plans are complete and accurate on first submission, you can be approved and start work within 3 weeks of applying.

What happens if I relocate a toilet but don't pull a permit?

Relocating a toilet is a plumbing change and requires a permit in Gurnee. If you skip the permit and the work is later discovered (during a home sale, appraisal, or insurance claim), you may face fines, be required to pull a retroactive permit and pass inspection, or face disclosure liability when selling. Additionally, if the drain line is not properly sloped or the trap arm exceeds code length, you risk drainage failure, which voids your homeowner's insurance. Always pull a plumbing permit for fixture relocation.

Is my 1975 bathroom remodel subject to lead-paint rules?

Yes. Homes built before 1978 contain lead paint, and any renovation, repair, or surface disturbance requires lead-safe work practices. You must either hire a Certified Lead-Safe Contractor or obtain a Lead-Safe Renovation Certificate (LSRC) and implement EPA-approved lead-safe practices. This adds 1–2 weeks and $500–$2,000 to your project. The EPA enforces this rule, not the Building Department, but lenders and home buyers will ask about compliance.

Can I, as the homeowner, pull the bathroom remodel permit myself?

Yes, you can pull the permit yourself if you own the home and it is your primary residence. However, you must hire a licensed plumber and licensed electrician to perform the trade-specific work and pull their own trade permits. You cannot do the plumbing or electrical work yourself, even as the owner. The Building Department will provide you a list of licensed contractors if needed.

What is the most common reason the Building Department rejects bathroom remodel permit applications in Gurnee?

The most common rejection is missing waterproofing detail on shower or tub installations. Applicants submit generic floor plans without specifying the cement board and membrane system (brand, model, or product spec). Other rejections include missing exhaust fan ductwork termination, GFCI/AFCI circuit labels on the electrical plan, and trap arm length dimensions on the plumbing plan. Submit detailed plans with product specs and dimension labels to avoid delays.

Can I start work before the permit is approved?

No. Starting work before the permit is approved and on-site is a violation and can result in a stop-work order and fines. Wait for written approval from the Building Department. Once approved, you can begin; however, all rough inspections (plumbing, electrical, framing) must be completed and passed before you close up walls, run new drywall, or install finishes.

How much does a bathroom remodel permit cost in Gurnee?

Permit fees range from $250 to $600, depending on the estimated project cost. Fees are calculated as a percentage of valuation (typically 1.5–2%). A $15,000 project generates a $225–$300 permit fee; a $25,000 project generates $375–$500. You estimate the total cost on the permit application; underestimating to reduce fees is permit fraud. Separate plumbing and electrical permits add $100–$150 each, but you can usually bundle them into a single bathroom remodel permit.

What if my bathroom remodel plan changes mid-project?

Notify the Building Department immediately if your scope changes (e.g., you decide to relocate a second fixture or change the waterproofing system). Minor changes may be approved through a permit amendment (small fee); major changes require a new permit application. Do not proceed with un-permitted changes; doing so voids the original permit and risks stop-work orders and fines.

Do I need to disclose my bathroom remodel when I sell my home?

Yes. Illinois law requires you to disclose all permitted and unpermitted work to buyers. If you pulled a permit and passed inspection, disclose it as 'permitted bathroom remodel.' If you did not pull a permit, you must still disclose the work as 'unpermitted,' which may trigger buyer demands for remediation or a price reduction. If you knowingly hide unpermitted work, you face fraud liability. Always pull a permit and keep the inspection records for disclosure purposes.

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current bathroom remodel (full) permit requirements with the City of Gurnee Building Department before starting your project.

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