Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
A full bathroom remodel in Elmwood Park requires a permit if you're relocating plumbing, adding circuits, installing a new exhaust fan, converting tub-to-shower, or moving walls. Surface-only work (tile, vanity swap, faucet replacement in place) is exempt.
Elmwood Park, a dense residential suburb northwest of Chicago, enforces the Illinois Building Code—currently the 2021 edition—through its Building Department, which operates on a strict 42-inch frost depth (matching Chicago's north-tier standard). Unlike some collar counties that allow owner-builder electrical work above the permit threshold, Elmwood Park requires licensed electricians for most bathroom circuits due to proximity to Chicago's electrical licensing sphere and the village's consistent enforcement posture. The village offers both counter service for simple questions and a standard 2-3 week plan-review cycle for full bathroom submittals. Permit fees run $300–$600 on average for a mid-range remodel, calculated at roughly 1.5% of project valuation; the village's fee schedule does not exempt owner-occupied work from the full fee. A critical local distinction: Elmwood Park's building inspector enforces IRC M1505 (exhaust-fan ventilation) with particular strictness on duct termination location—ductwork must exit above the roofline with a damper, not into attic or soffit spaces, a violation frequently cited in this older village where attic terminations were once common practice.

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

Elmwood Park bathroom remodel permits — the key details

Elmwood Park Building Department issues bathroom remodel permits under the 2021 Illinois Building Code (IBC), which adopts the International Building Code with state amendments. A permit is required whenever the project involves fixture relocation, new electrical circuits, exhaust-fan installation, wall framing changes, or tub-to-shower conversion. The village's permit application requires a one-page form (available at village hall or via phone request), a site plan showing the bathroom's location and dimensions, a plumbing diagram indicating old and new fixture locations with trap-arm lengths, an electrical one-line diagram if new circuits are added, and manufacturer specs for the exhaust fan (CFM rating, duct diameter, and termination method). Most applications are reviewed by the village's part-time mechanical/plumbing inspector and electrical inspector in sequence, a process typically taking 10-14 days for a straightforward remodel with no major code conflicts. The permit fee is calculated as a flat $300 base plus $0.50 per $100 of estimated project valuation (so a $10,000 bathroom costs roughly $350; a $20,000 remodel runs $400). Once issued, the permit is valid for 180 days; work must begin within that window or the permit expires and must be re-pulled.

Fixture relocation—moving the toilet, sink, or tub to a new location—is the single most common reason a bathroom remodel requires a permit in Elmwood Park. IRC P2706 and IPC Section 422 limit the distance a toilet's trap arm can extend: the horizontal distance from closet flange to vent cannot exceed 6 feet (or 10 feet if the vent drops 45 degrees within that run). Many homeowners discover mid-project that their desired toilet location violates this rule, forcing an expensive vent relocation. Similarly, drain slopes must remain between 1/4 inch and 1/2 inch per foot; undersized drain lines or inadequate pitch are common rejections during rough plumbing inspection. If you're moving a shower, IRC R702.4.2 requires a waterproofing membrane behind all substrate within 10 feet of the tub/shower opening and 5 feet vertically; Elmwood Park inspectors expect to see cement board plus a liquid or sheet membrane (Redgard, chloraloy, or equivalent), with sealed seams and detailed corners. This waterproofing specification must appear on your permit application or on a separate detail sheet; vague descriptions like 'shower tile on backerboard' will trigger a plan-review rejection.

Electrical work in bathroom remodels falls under NEC Article 210 and 680 (wet locations) and IRC E3902. Every bathroom outlet within 6 feet of a sink or tub must be on a GFCI-protected circuit (either a GFCI breaker or GFCI receptacle); the exhaust fan, lighting, and any heated towel rack also need to be controlled separately and protected. If you're adding a new circuit for a towel warmer, heated floor, or ventilation fan, Illinois law (IBC Electrical) requires a licensed electrician to design the circuit and pull permits; Elmwood Park does not allow homeowners to file their own electrical permit for circuits added in bathrooms, even if owner-occupied. The inspection sequence is rough-in (before drywall, checking wire gauges, box locations, and GFCI compliance) and final (verifying cover plates, breaker labeling, and operation). Many plan rejections occur because applicants forget to show the exhaust fan's electrical connection on their one-line diagram or fail to specify that all outlets are GFCI-protected.

Ventilation—specifically, exhaust-fan ductwork—generates more citations in Elmwood Park than any other bathroom code issue. IRC M1505 requires mechanical exhaust ventilation for all bathrooms without windows, rated at a minimum of 50 CFM (or 80 CFM if no window in the toilet area). The duct must be rigid or flexible (4-inch or 3-inch diameter typical), must terminate at least 12 inches above the roofline with a damper, and must not discharge into the attic, soffit, or crawlspace. Elmwood Park inspectors are strict on this rule because older homes in the village often have soffit or attic dumps that have caused mold problems. If your roof pitch or attic layout makes a roof termination difficult, a sidewall termination is acceptable but must be located away from windows and doors (minimum 3 feet horizontally and 10 feet vertically from any openable window or door per IRC M1502.4). The exhaust-fan specification and duct routing must appear on your permit application sketch or on a separate detail page showing the duct path from the bathroom through the wall or ceiling and the final termination. If you're using an existing duct that currently vents to the attic, the permit inspector will flag this and require relocation to a proper termination.

Once the permit is issued, expect four inspections: rough plumbing (checking trap arms, vent sizing, and cleanout locations before any drywall), rough electrical (verifying GFCI outlets, circuit routing, and exhaust-fan wiring), framing/waterproofing (if walls are moved or tub is relocated, ensuring the waterproofing membrane is in place before tile), and final (approving all finishes, testing GFCI outlets, verifying exhaust-fan operation and damper function). Each inspection request must be called or submitted through the online permit portal; typical response time is 1-3 business days. If the inspector finds a violation, you receive a written 'correction notice' rather than an immediate fail; minor issues (like a duct routing adjustment or a missing GFCI outlet) can often be corrected on-site and re-inspected within days. Plan for the total permit process—from application to final sign-off—to take 4-6 weeks if everything goes smoothly, or 8-10 weeks if revisions are needed. The final inspection sign-off is recorded by the village and becomes part of the property record, which is essential for future sales, insurance claims, and refinancing.

Three Elmwood Park bathroom remodel (full) scenarios

Scenario A
Bathroom in basement, moving toilet from wall to corner, new vanity in old sink location, no electrical or exhaust changes — older two-flat in Elmwood Park
You're moving a basement toilet from its current location (eastern wall) to the opposite corner (western wall) to make room for a larger vanity. The new toilet location is 8 feet from the existing vent stack. Per IRC P2706, the trap arm from the closet flange to the vent cannot exceed 6 feet in a standard run; your 8-foot horizontal distance requires either dropping the vent at a 45-degree angle within 6 feet (increasing ceiling height in the basement) or rerouting the vent line entirely—both are expensive and common deal-breakers that homeowners discover only after the permit is pulled. The village requires a plumbing diagram showing the old and new trap-arm dimensions and the vent configuration; most inspectors will reject the application if these details are vague. You'll also need to patch and seal the old toilet location in the concrete floor (no permit-exempt work if the concrete is broken). Permit fee runs $325–$350; rough plumbing inspection happens before any floor patching, and final inspection occurs after tile and vanity are installed. Total timeline is 4-6 weeks. Because the toilet is in the basement and the frost depth is 42 inches in Elmwood Park, the inspector will verify that any new drain lines are buried below frost depth if they run outside the foundation; most basement toilet relocations avoid this by staying within the slab. The main risk here is discovering mid-project that the trap-arm distance forces expensive vent rework, adding $1,500–$3,000 to the job.
Permit required | Trap-arm distance check mandatory | Plumbing diagram with dimensions required | $325–$350 permit fee | Rough plumbing + final inspections | 4-6 week timeline | 1-2 week plan review
Scenario B
Master bathroom on second floor, converting alcove tub to walk-in shower, new GFCI circuit for heated floor mat, exhaust fan replacement — ranch in Elmwood Park
This is a full-scope bathroom remodel: you're removing a 5-foot tub, waterproofing a new shower alcove with cement board and Redgard membrane, adding a heated-floor circuit (requiring a 20-amp dedicated GFCI breaker in the electrical panel), and replacing the old exhaust fan with a new 80-CFM model ducted through the soffit to a roof termination above the roofline. This project requires both plumbing and electrical permits. The plumbing side involves design of the new shower base, drain sizing (3-inch minimum for a shower per IPC 422), and P-trap configuration; the waterproofing detail must be detailed on the permit application (cement board substrate, liquid membrane or sheet, sealed seams, and cove detail at the corner). The electrical side requires a licensed electrician to design the 20-amp GFCI circuit for the floor mat and to verify that all shower-area outlets (lights, any switches) are GFCI-protected; you cannot do this yourself even if owner-occupied. The exhaust fan spec sheet must show the CFM rating, duct diameter (4 inches standard), and the planned roof-termination height. Elmwood Park's electrical inspector is strict about GFCI compliance; if the application does not clearly state that the floor-mat circuit and all outlets are GFCI-protected, the plan will be rejected and resubmitted. Permit fees total $400–$450 (plumbing ~$325, electrical ~$125). Inspections: rough plumbing (drain and vent before concrete), waterproofing inspection (before tile), rough electrical (before drywall closure), and final. If the existing soffit duct termination is inadequate (venting into the soffit box rather than exiting above the roof), the inspector will flag this and require rerouting, adding 2-3 days and $200–$500 in ductwork relocation. Total timeline is 5-7 weeks. The heated-floor circuit is a frequent point of confusion; it must have its own breaker and GFCI protection, not shared with lighting or the vanity outlet.
Plumbing + electrical permits required | Waterproofing membrane detail mandatory | GFCI protection on all circuits required | Licensed electrician for heated-floor circuit required | Exhaust-fan roof termination required (not soffit) | $400–$450 total permit fee | 5-7 week timeline | Rough plumbing, waterproofing, rough electrical, final inspections
Scenario C
Half-bath remodel, replacing toilet and vanity in-place, new tile around existing tub, no fixture relocation, no electrical changes — bungalow in Elmwood Park
You're gutting the finishes (tile, vanity, toilet) and reinstalling them in the exact same locations. The tub stays put, the toilet flange stays in the same spot, and the sink drains to the existing P-trap. You're not moving any walls, not adding any circuits, and not changing the exhaust fan. This work is permit-exempt under IRC Section 101.2 (alterations of non-structural components) and Elmwood Park's local exemptions. However, the work still must comply with code: new tile around the tub requires waterproofing (IRC R702.4.2), so you must install cement board (not drywall) as substrate and seal all seams with a liquid or sheet membrane. Many DIYers think they can skip this if they 'don't have a permit,' but if a water issue arises later and the homeowner's insurance investigates, discovering non-code waterproofing can void coverage. The best practice is to take a photo of the waterproofing detail and keep it in a file; if the work is ever questioned, you have documentation that you followed code even though you didn't need a permit. Toilet replacement is straightforward: turn off the water, unbolt the old toilet, reseat the new one on the existing flange with a new wax ring, and connect the supply line. A vanity swap is similarly straightforward: disconnect the P-trap and supply line, remove the old vanity, slide in the new one, and reconnect. No permit, no inspection, no fee. Total cost is $3,000–$6,000 for materials and labor, but zero permit costs. The risk is that if you fail to properly waterproof the new tile area or if the new vanity has a plumbing leak, the damage is on you—no permitted work history to fall back on. If you later sell the home, the TDS disclosure will show 'no permits pulled' for the bathroom; most buyers accept this for cosmetic work, but a careful inspector might flag the lack of a waterproofing detail and ask questions.
No permit required (in-place fixture swap only) | Waterproofing still required by code (cement board + membrane, even without permit) | $0 permit fee | No inspections | 1-2 week DIY timeline | Full project $3,000–$6,000

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Waterproofing and IRC R702.4.2: Why Elmwood Park inspectors care

IRC R702.4.2 mandates that areas around bathtubs and showers be waterproofed with a continuous, impermeable membrane behind all exposed substrate within 10 feet horizontally and 5 feet vertically of the tub or shower opening. In Elmwood Park, a village with many 1920s-1950s homes that have seen decades of bathroom water damage, inspectors enforce this rule strictly. The code recognizes three acceptable waterproofing methods: (1) sheet membrane (Redgard, Hydro Ban, Chloraloy) applied in overlapping layers with sealed seams; (2) liquid membrane (Redgard applied with brush or sprayed) on cement board or equivalent; or (3) pre-waterproofed tile backer board (such as Durock, Kerdi, or equivalent). Drywall behind tile is not acceptable; many older homes in Elmwood Park still have drywall behind shower tile, which fails when water seeps through grout.

When you submit a permit application for a shower remodel, Elmwood Park's building inspector will ask for a detail sketch showing the substrate type (cement board, tile backer board, or gypsum board), the membrane type and thickness, and how seams are sealed. A vague answer like 'I'll use Redgard' will trigger a rejection; the inspector wants to know the substrate type, the membrane brand and application method, and proof that you've chosen a method listed in IRC R702.4.2. If you're unsure, ask the inspector during the counter consultation; they often have a one-page spec sheet they'll hand you that lists approved methods. The rough-waterproofing inspection (before tile) is non-negotiable; the inspector will verify that the membrane is continuous, seams are sealed, and corners have a proper cove detail (not a 90-degree corner, which traps water).

The cost of proper waterproofing is $200–$400 in materials and labor for a typical 5x7 bathroom. Many homeowners try to save money by skipping the membrane or using drywall and thinset, but when water damage occurs—and it will, eventually, when grout cracks—the repair is far more expensive (removing tile, drying the wall cavity, replacing framing if needed, and re-tiling). Elmwood Park's climate (humid, freeze-thaw cycles, high water table in some areas) accelerates moisture problems; proper waterproofing is not optional.

Electrical GFCI and AFCI requirements: Why the permit application asks for a one-line diagram

NEC Article 210.8(A) and IRC E3902 require that all receptacles and switches within 6 feet (measured horizontally) of a sink, bathtub, or shower be GFCI-protected. In a typical full bathroom remodel, this means the receptacles flanking the vanity sink, any outlet inside the shower niche or near the tub, the light fixture above the vanity, and the exhaust fan are all GFCI-protected. Elmwood Park's electrical inspector will require you to specify on the permit application (or one-line diagram) which receptacles are GFCI-protected and how (GFCI breaker or GFCI receptacle). A GFCI breaker protects all outlets on that circuit; a GFCI receptacle protects only devices downstream of it. Many homeowners assume the toilet and the exhaust fan don't need GFCI, but the toilet outlet (if it exists) does need protection if it's within 6 feet of the sink; the exhaust fan outlet should be on a dedicated circuit and does not legally require GFCI (though some inspectors ask for it).

When you add a new circuit for a heated floor mat, towel warmer, or ventilation fan, that circuit requires GFCI protection. If the application does not show GFCI protection on the one-line diagram, the plan will be rejected. Elmwood Park requires a licensed electrician to design and execute electrical work that involves new circuits; owner-builder electrical is not permitted in bathrooms. This is a key distinction between Elmwood Park (strict) and some rural Illinois towns (more lenient). The permit application must include a manufacturer spec sheet for any new electrical device (heated floor, fan) showing its voltage, amperage, and GFCI compatibility. If the spec sheet says the device is not GFCI-compatible, you'll need an exception or an alternative design.

The final electrical inspection verifies that all GFCI outlets trip when tested, that all cover plates are in place, that the exhaust fan operates, and that all circuits are properly labeled at the breaker. A common failure point is an improperly labeled breaker; if the permit application says 'Master Bath GFCI' but the breaker is labeled 'Bath Fixtures,' the inspector will flag it. Spend time on the one-line diagram in the application; it's worth 10-15 minutes to avoid a plan rejection and a 1-2 week delay.

City of Elmwood Park Building Department
Elmwood Park Village Hall, 7840 West Grand Avenue, Elmwood Park, IL 60707
Phone: (708) 452-7300 ext. Building Department (verify current extension) | https://www.elmwoodpark.org/ (check 'Permits' or 'Building Services' page for online portal)
Monday-Friday 8:00 AM - 5:00 PM (verify; some villages restrict permit desk hours to specific windows)

Common questions

Can I get a bathroom permit in Elmwood Park if I'm the owner but not a licensed plumber or electrician?

Yes, owner-occupied properties can pull permits, and homeowners can perform plumbing work if they're not altering the main sewer line. However, any new electrical circuits (like a heated-floor mat or new exhaust-fan circuit) must be designed and installed by a licensed electrician. Plumbing work can be owner-performed if the work is permitted and inspected; Elmwood Park does not require a license for owner-builder plumbing, only for plumbing contractors. If you're unsure whether your specific electrical work requires a professional, call the building department and describe the scope; they'll tell you whether a licensed electrician is required.

How long does the plan-review process take in Elmwood Park for a bathroom remodel?

Typical plan review is 10-14 business days for a straightforward application (fixture relocation, new exhaust fan, no wall changes). If revisions are required, add another 5-7 days per round of corrections. Expedited review (3-5 days) is available for an additional fee of $100–$150, but only if the application is nearly complete and has no major code conflicts. Rough inspections (plumbing, electrical) typically happen within 2-3 business days of a request; the village is responsive because inspectors are part-time and visit properties on a shared schedule.

What happens if I find out during my bathroom remodel that my trap-arm distance violates code?

Trap-arm violations (horizontal distance from toilet flange to vent exceeding 6 feet) are common in older Elmwood Park homes and require either a vent relocation or rerouting of the drain to shorten the arm. This typically costs $500–$1,500 depending on whether the vent stack is accessible and whether you can route the new drain through existing cavities or must frame new ones. The building inspector will catch this during the rough-plumbing inspection; once flagged, you cannot proceed to drywall or finishing until it's corrected. It's worth hiring a plumber to check trap-arm distances before pulling a permit, so you know the cost upfront.

Do I need a permit for just replacing a vanity and toilet in the same location?

No. Vanity and toilet replacement in their existing locations is permit-exempt under Elmwood Park code (IRC 101.2 alterations). However, any new tile or waterproofing around a shower or tub still must comply with code (cement board plus membrane); this work is exempt from the permit requirement but not exempt from the code requirement. Keep photos of your waterproofing work for your records. If you're moving the vanity, toilet, or any plumbing fixture, even a few feet, a permit is required.

Is the exhaust fan duct required to exit through the roof in Elmwood Park, or can it go through the soffit?

It must exit through the roof, at least 12 inches above the roofline, with a damper. Soffit or attic terminations are not code-compliant and will be flagged by the inspector. Elmwood Park is particular about this rule due to past mold and moisture issues in older homes. If your roof pitch or attic layout makes a roof termination difficult, a sidewall termination (exiting the exterior wall) is acceptable if it's at least 3 feet from any operable window or door. The duct routing must be shown on your permit application.

What is the typical permit fee for a full bathroom remodel in Elmwood Park?

Permit fees in Elmwood Park are calculated as a flat $300 base plus $0.50 per $100 of estimated project valuation. A $10,000 remodel costs approximately $350 in permit fees; a $20,000 remodel costs approximately $400. Plumbing and electrical permits, if both are required, are sometimes charged separately or combined into a single fee depending on the village's current fee schedule. Confirm the exact fee amount when you call or visit the building department; fees can change annually.

Do I need to pull separate permits for plumbing and electrical in Elmwood Park, or can I combine them into one bathroom remodel permit?

Elmwood Park allows a single 'bathroom remodel' permit that covers both plumbing and electrical if both are required. You do not need to pull two separate permits. However, the fee may be itemized separately on the permit invoice (e.g., plumbing inspection fee + electrical inspection fee). Ask the clerk when you file whether a combined permit is possible; it simplifies the application process and avoids confusion about which inspector is assigned to which phase.

What if I discover my bathroom remodel is unpermitted after I've finished it and I'm selling the house?

Unpermitted work must be disclosed on the Illinois Residential Real Estate Disclosure, and many buyers will request a permit and final inspection before closing. If the work was done properly (even without a permit), you can apply for a 'permit after-the-fact' and request an inspection; the inspector will verify that the work complies with code and may issue a retroactive final approval. This costs extra (typically 1.5x the original permit fee) and takes 3-4 weeks. If the work does not comply with code, you may need to remove or remediate it, which is expensive. It's far better to get a permit before starting work. If you're considering a post-sale permit, talk to a real estate attorney first.

Are there any zoning or historic-district restrictions on bathroom remodels in Elmwood Park?

Most of Elmwood Park is standard residential zoning with no unusual restrictions. However, if your home is located in or near a historic district (e.g., the Ashland Avenue historic corridor), exterior work (like new exhaust-vent terminations or roofline changes) may require Historic Preservation Commission review, which adds 2-3 weeks to the process. Interior work (plumbing, electrical, finishes) is generally not subject to historic restrictions. Check the village's zoning map or call the building department to confirm whether your property is in a historic district or overlay zone.

If I'm converting my tub to a shower, do I need to change my plumbing drain or vent?

Not necessarily. If the new shower drain location is the same as the old tub drain, you can reuse the existing P-trap and vent without modification. However, if the new shower is located away from the current tub, you'll need a new drain line and possibly a new vent. The permit application will require a plumbing diagram showing the old and new drain routing and trap-arm lengths. A tub-to-shower conversion also involves a waterproofing change (IRC R702.4.2): a new waterproofing membrane must be installed behind the new shower substrate (cement board or tile backer board). This waterproofing detail must appear on the permit application or on a separate waterproofing specification sheet.

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 Elmwood Park Building Department before starting your project.