Bathroom Remodel Permit in Bloomingdale, IL (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

A full bathroom remodel in Bloomingdale requires a permit if you relocate any plumbing fixture, add electrical circuits, install a new exhaust fan, convert tub to shower, or move walls. Surface-only work—replacing tile, vanity, or faucet in place—is exempt.

Bloomingdale enforces the 2021 Illinois Building Code, which the city adopted in 2023. Unlike some suburban Chicago communities that grandfather older code editions or allow broader owner-builder exemptions, Bloomingdale requires a permit for any work that touches the plumbing/electrical backbone or changes the bathroom envelope—including exhaust-fan ductwork, which must terminate through the roof or exterior wall per IRC M1505 and be sized correctly (minimum 50 CFM for 75 sq ft bathroom per code). The Bloomingdale Building Department (under the Village of Bloomingdale) issues permits through an online portal and requires plan submission before work starts; the city does not offer over-the-counter permits for bathroom remodels. Typical turnaround is 2–3 weeks for plan review, with mandatory rough-plumbing, rough-electrical, and final inspections. If your remodel is purely cosmetic—new tile, vanity, faucet, toilet in their existing locations, no wall moves, no new circuits—you may not need a permit, but the burden is on you to document that claim in writing to the Building Department before starting.

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

Stop-work order and $500–$1,500 fine from Bloomingdale Building Department, plus mandatory re-inspection and permit fee owed retroactively.
Insurance denial if bathroom damage (mold from improper exhaust, water intrusion from unverified waterproofing) is tied to unpermitted work—claim rejection language includes 'unpermitted alteration to plumbing/electrical systems.'
Home sale disclosure and title hit: Illinois Residential Real Property Disclosure Act requires seller to disclose unpermitted work; buyer can sue or demand price reduction; lender may refuse to refinance.
GFCI/AFCI outlet violation creates electrocution risk and will fail a future safety inspection; in rare cases, city has condemned bathroom use until corrected.

Bloomingdale full bathroom remodel permits — the key details

The core rule for Bloomingdale bathroom remodels is simple: if plumbing, electrical, or structural elements are being altered, you need a permit. The 2021 Illinois Building Code, adopted by Bloomingdale in 2023, requires permits for fixture relocation (sinks, toilets, tubs, showers), new drain lines, new electrical circuits, new exhaust fans, wall removal, and any work that changes the bathroom's waterproofing assembly. If you are simply replacing a faucet on an existing sink, swapping out a toilet in place, retiling walls, or installing a new vanity cabinet in the existing footprint without touching plumbing or electrical, you are exempt—but Bloomingdale Building Department expects you to declare this in writing before work starts to avoid a stop-work order. The exemption language is found in the Illinois Building Code Section 105.2 (work exempt from permit), though Bloomingdale's online permit portal and code guidance documents (available on the Village website) clarify local interpretation.

Waterproofing is the first technical hurdle. If you are converting a bathtub to a shower, or installing a new shower enclosure, IRC R702.4.2 requires a complete moisture barrier system behind the surround—not just caulk. Bloomingdale inspectors will require you to specify the waterproofing method on your permit application: typically cement board plus a liquid-applied membrane (per ASTM D8127 or equivalent), or a pre-manufactured waterproof panel system. Do not assume 'standard drywall and caulk' will pass; the city has rejected plans that lack this detail. If you are keeping the existing tub or shower in place and only refinishing the surround (no waterproofing change), that may be exempt, but verify with the Building Department. Pressure-balanced or thermostatic mixing valves are required if you are relocating a tub/shower valve; single-handle valves without anti-scald protection no longer meet code.

Electrical work in bathrooms carries strict GFCI (ground-fault circuit interrupter) and AFCI (arc-fault circuit interrupter) requirements under NEC Article 210.12 and Illinois amendments. Every outlet within 6 feet of a sink, toilet, or bathtub must be GFCI-protected; outlets outside that zone but still in the bathroom should be on a dedicated 20-amp circuit (not shared with other rooms). If you are adding a new exhaust fan, it must be on its own circuit with AFCI protection, and the duct must be sized at least 4 inches diameter, insulated, and run directly to exterior (not into an attic unless the attic is unconditioned and ductwork wraps with R-8 insulation). Bloomingdale plan reviewers will ask for a one-line electrical diagram showing all outlet locations, circuit breaker assignments, and GFCI/AFCI locations; missing this detail is a common rejection reason.

Plumbing trap arms and drain slope rules are less intuitive but critical. If you are relocating a toilet or sink, the drain line must be sloped at 1/4 inch per foot minimum, and the horizontal distance from the trap to the vent stack (the 'trap arm') cannot exceed 42 inches for a 1.5-inch drain without a secondary vent (per IRC P2706). Bathrooms in Bloomingdale sit on glacial till or loess soil, both of which are stable for shallow drain runs, so frost depth (42 inches in the Chicago area) is not a barrier for interior drains; however, if your bathroom is on a concrete slab and you are running a toilet drain across the slab to a new location, you must use a specific fitting type (double-sanitary tee, not a single tee) where the vent connects. This is not typically a homeowner-friendly detail; hiring a licensed plumber for the rough-plumbing design is nearly essential for relocation work.

The permit process in Bloomingdale follows a standard DDP (Design Development Plan) review. Submit your application (online through the Bloomingdale permit portal or in-person at Village Hall) with floor plans showing old and new fixture locations, electrical one-line diagram, plumbing isometric or rough-in diagram, exhaust-fan duct routing, and waterproofing detail if applicable. The Building Department will issue comments within 7–10 business days (2–3 weeks typical); address comments and resubmit. Once approved, you receive a permit (cost $300–$750 depending on valuation of work), and you must call for rough-plumbing inspection before covering any drains, rough-electrical before covering any wiring, and final inspection after all work is complete. Plan for 4–6 weeks from permit application to final sign-off. If you are owner-builder (owner-occupied), you may pull the permit yourself; if you hire a contractor, the contractor pulls the permit and is responsible for inspections.

Three Bloomingdale bathroom remodel (full) scenarios

Scenario A

Vanity swap and retiling, same locations, no electrical or plumbing relocation — Westchester Avenue ranch

You are replacing an old laminate vanity with a new solid-surface unit in the exact same footprint, re-tiling the backsplash and floor with porcelain tile (no waterproofing assembly change since you are not touching the existing tile substrate underneath), and upgrading the faucet. The existing outlets stay in place, and you are not adding circuits. The existing exhaust fan is functioning and you are not touching it. In this case, no permit is required under Illinois Building Code Section 105.2(b) because no plumbing, electrical, or structural work is being performed—you are doing fixture replacement and cosmetic finishes only. The Bloomingdale Building Department will not require a permit for vanity cabinet swap, faucet replacement, or tile refinishing in place. However, if the old vanity was anchored to studs and the new one requires different stud-level fastening due to size or weight, and you are relocating those anchor points, that might trigger a permit (this is a gray area). To be safe, call the Building Department and describe the exact scope: 'We are replacing the vanity, faucet, and retiling walls and floor, no plumbing or electrical relocation.' If they confirm exempt status in writing (via email), you have a clean record. Timeline: no permit = start immediately. Cost: $3,000–$6,000 for vanity, tile, faucet, and basic labor (no permit fees).

Scenario B

Toilet and sink relocation plus new exhaust fan duct — Lombardy Lane colonial

You are moving the toilet from the east wall to the north wall (new 3-inch drain line required, trap arm will be ~30 inches), moving the sink 4 feet to the west (new 1.5-inch supply and drain), and installing a new 6-inch exhaust fan with rigid ductwork terminating through the roof. You are not adding new electrical circuits, but the exhaust fan must be wired to a 20-amp dedicated circuit. This work absolutely requires a permit because you are relocating two plumbing fixtures and adding a new exhaust fan. The key Bloomingdale issue here is that exhaust ductwork must terminate outside (not into the attic or soffit) and be sized correctly; inspectors will verify the duct diameter, insulation (R-8 if it runs through unconditioned space), and termination hood. The drain lines must slope 1/4 inch per foot and be properly vented; the toilet trap arm (new) must not exceed 42 inches without a secondary vent, and the sink drain must connect to a proper tee at the main stack. The new electrical circuit for the exhaust fan must have AFCI protection (not just GFCI). Plumbing rough-in inspection, electrical rough-in inspection, and final inspection are mandatory. Timeline: 2–3 weeks for plan review, 4–6 weeks total including inspections. Cost: permit $400–$600 (based on ~$8,000–$12,000 project valuation), plus $1,200–$2,000 for licensed plumber to rough-in drains and vent, $400–$800 for electrician to install dedicated circuit and exhaust fan wiring, $3,000–$4,000 for exhaust fan/duct/materials, $1,500–$2,500 for finish (tile, paint, trim). Total: ~$8,500–$12,500 + permit fees.

Scenario C

Tub-to-shower conversion with waterproofing assembly change, wall removed — Lake Drive suburban home

You are removing a wall between the bathroom and adjacent bedroom to enlarge the bathroom, removing the existing bathtub, and installing a large walk-in shower in the tub's former location. The new shower requires a complete waterproofing assembly (cement board substrate plus liquid-applied membrane or pre-manufactured waterproof panel per IRC R702.4.2) because you are changing the wall behind the tub from tile-only to a full moisture barrier system. You are also relocating the toilet to the new wall line and adding a new vanity on the demolished wall. New electrical circuits are being added for lighting and ventilation. This is a major renovation and requires a permit. The critical Bloomingdale issue is the waterproofing specification: you must submit a detail drawing showing the waterproofing product (brand, ASTM standard), cement board thickness, membrane thickness, and how water will be directed to the drain pan at the shower base. Inspectors will require a waterproofing inspection (before drywall closes in) to verify the product was applied correctly. Wall demolition requires a structural review if the wall is load-bearing (common in older suburban homes); the Building Department will ask for engineer certification or, if non-load-bearing, a statement from your contractor. The new electrical circuits must include GFCI outlets (within 6 feet of tub/shower/sink) and AFCI protection on the general lighting/ventilation circuits. Plumbing rough-in, framing inspection (if wall removed), electrical rough-in, waterproofing inspection, and final are required. Timeline: 3–4 weeks plan review (waterproofing detail often requires resubmittal), 6–8 weeks total. Cost: permit $500–$750 (based on ~$15,000–$20,000 project valuation), plus $2,500–$4,000 for structural engineer (if load-bearing wall), $2,000–$3,500 for licensed plumber (drain/trap relocation, new vent if needed), $1,200–$2,000 for electrician (new circuits, GFCI/AFCI outlets), $4,000–$6,000 for shower pan, waterproofing system, and tile, $2,000–$3,000 for drywall, framing, and miscellaneous. Total: ~$14,000–$21,000 + permit fees.

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Bloomingdale's waterproofing and exhaust ventilation standards

Waterproofing is where most Bloomingdale bathroom remodel permits get bogged down. The 2021 Illinois Building Code, which Bloomingdale adopted, requires IRC R702.4.2 compliance: any change to the tub/shower surround (converting tub to shower, removing and re-tiling, relocating a shower valve) must include a moisture barrier. The barrier must be continuous behind the waterproof tile or surround material, extend from the floor up to at least 72 inches above the rim of the tub or the full height of the shower enclosure, and be sealed at penetrations. Common failures: drywall + caulk alone does not meet code; you need cement board (at least 1/2 inch) or gypsum board rated for wet areas, plus a liquid-applied membrane (ASTM D8127 or equivalent) or pre-fabricated waterproof panels. Bloomingdale inspectors will ask you to specify the product on your permit application (e.g., 'Schluter Kerdi membrane' or 'Durock cement board with RedGard liquid membrane') and will perform a rough waterproofing inspection before drywall closes in.

Exhaust fan ventilation under IRC M1505 requires the fan to be sized at a minimum of 50 CFM (cubic feet per minute) for bathrooms up to 75 square feet, plus 1 CFM per additional square foot. The duct must be at least 4 inches diameter (6 inches is safer for longer runs), rigid or semi-rigid (not flexible plastic alone—flexible is okay if transition only), insulated to R-8 if run through unconditioned attic, and terminated through the roof or exterior wall with a dampered hood. Bloomingdale inspectors will verify the duct routing and termination; common rejections include ductwork terminating into the attic (which traps moisture and defeats the purpose), undersized ducts, or flex ductwork left bare in cold spaces. If the bathroom is on the second floor and you cannot run ductwork to the roof, soffit termination may be acceptable, but verify with the Building Department. Inline exhaust fans (installed in the duct, not in the ceiling) are more efficient and are increasingly favored in plan reviews.

The Bloomingdale Building Department typically requires you to call for a rough inspection before covering any waterproofing or ductwork. If you close in a wall without inspection and the waterproofing is found to be defective, you may have to open the wall again at your cost. Plan your work sequence carefully: frame, run rough plumbing and electrical, install waterproofing system with inspection sign-off, install ductwork with inspection, then drywall and finish. This adds 1–2 weeks to the timeline but prevents costly rework.

GFCI, AFCI, and electrical circuit requirements in Bloomingdale bathrooms

Bathrooms are among the most strictly regulated electrical spaces in the 2021 Illinois Building Code. NEC Article 210.12 requires all 120-volt, single-phase, 15- and 20-ampere outlets in bathrooms to be GFCI-protected (ground-fault circuit interrupters trip instantly if there is a current leak, preventing electrocution). GFCI protection can be provided by a GFCI breaker in the panel, a GFCI outlet (which protects downstream outlets on the same circuit), or a combination. If you are adding a new circuit in a bathroom, Bloomingdale inspectors will expect to see a GFCI breaker or GFCI outlet protecting all outlets on that circuit. Additionally, all outlets within 6 feet of a sink, toilet, or bathtub must be individually GFCI or on a GFCI circuit; outlets farther away (e.g., a outlet near the bathroom door for a wall sconce) still need GFCI protection in a bathroom, so do not assume you can split the circuit.

AFCI (arc-fault circuit interrupter) protection is required for all outlets in the bathroom except those within 6 feet of the sink (which have GFCI). The purpose is to prevent arcing faults that could start a fire—e.g., a loose wire in a light fixture arcing against a metal junction box. In practice, Bloomingdale plan reviews typically show either AFCI/GFCI combination breakers in the panel (protecting the entire bathroom circuit with both protections) or individual AFCI outlets in locations outside the 6-foot sink zone. A common mistake is omitting AFCI entirely or assuming GFCI covers it; they are separate protections. If you are adding a new exhaust fan, that circuit must have AFCI, even though the exhaust motor itself is not a shock hazard.

Bloomingdale does not allow shared bathroom circuits (one circuit serving the bathroom and an adjacent hallway or bedroom). Each bathroom should be on a dedicated 20-amp circuit, with the exhaust fan on its own 20-amp circuit and the lighting (if separate) on another. This is not a local quirk—it is a code requirement—but many older homes have bathroom outlets and lights on shared circuits. When you remodel, upgrading to dedicated circuits is wise (though not legally required for every outlet if you are not touching existing wiring). However, if you are adding new circuits for relocated fixtures or new lighting, Bloomingdale inspectors will require dedicated circuits by code. Your electrician should provide a one-line diagram showing all circuits, their amperage, GFCI/AFCI locations, and the breaker panel assignments. This diagram is mandatory for permit approval and will be requested in the plan review phase.

City of Bloomingdale Building Department
Village of Bloomingdale, 201 S. Gary Ave., Bloomingdale, IL 60108
Phone: (630) 529-2411 | https://www.bloomingdale.il.us (permits page; online portal access or in-person submission)
Monday–Friday, 8:00 AM–5:00 PM (verify hours on Village website before visiting)

Common questions

Can I pull a bathroom remodel permit myself if I own the home and live in it?

Yes. Bloomingdale allows owner-builders for owner-occupied properties. You can pull the permit yourself and schedule inspections under your name. However, you are responsible for ensuring all work meets code and for being present at inspections. If you hire a contractor, the contractor must pull the permit (contractors cannot work under an owner-builder permit). Many homeowners opt to hire a contractor to avoid the liability and to ensure inspections are coordinated properly.

What if I am just replacing a toilet or faucet without moving it?

Replacing a toilet, faucet, or sink in its existing location, with no plumbing relocation, is exempt from permitting. You can swap these fixtures without filing paperwork. However, if you are relocating the fixture even a few feet, or if you are replacing the entire vanity cabinet and changing the sink position, you may trigger a permit requirement—call Bloomingdale Building Department to confirm before starting.

Do I need a permit for a walk-in shower if I am keeping the drain in the same location?

If you are removing a tub and installing a shower in its place, you need a permit because the waterproofing assembly changes. Even if the drain is in the same spot, the walls behind the shower must meet IRC R702.4.2 waterproofing requirements (cement board + membrane or equivalent). If you are simply re-tiling an existing shower surround (no tub-to-shower conversion, no wall relocation), you may be exempt, but document this with Bloomingdale Building Department in advance.

How much does a bathroom remodel permit cost in Bloomingdale?

Permit fees are based on estimated project valuation. A simple fixture relocation (toilet + sink move, new fan, no wall demo) typically costs $300–$600 for the permit. A major remodel with tub-to-shower conversion, wall removal, and extensive electrical work may run $500–$800. Bloomingdale uses a fee schedule based on construction cost; ask for the current fee schedule when you apply. Plan to add 5–10% of permit cost for any resubmittals if plans are rejected for missing details.

What inspections will the City of Bloomingdale require for my bathroom remodel?

Minimum inspections for a bathroom remodel are rough-plumbing (after drains and vents are installed, before covering), rough-electrical (after wiring and outlets are installed, before drywall), and final (after everything is complete). If you are removing or relocating walls, a framing inspection is required. If you are installing a new waterproofing system and the inspector wants to verify it before drywall closes in, a waterproofing inspection may be requested. You must call the Building Department to schedule each inspection and have the work ready when the inspector arrives; missing an inspection can delay your permit sign-off.

Do I need a structural engineer's letter if I am removing a wall in my bathroom?

It depends. If the wall is non-load-bearing (a typical partition separating two rooms on the same floor, running parallel to floor joists), you may not need an engineer; however, Bloomingdale Building Department may ask for a letter from your contractor stating the wall is non-load-bearing. If the wall is load-bearing (runs perpendicular to joists or supports floor joists above), you will need a structural engineer to design a beam and support posts, and a signed and sealed engineer's drawing must be submitted with your permit. Do not assume—contact the Building Department with your floor plan and ask whether an engineer is required.

Can I use flexible flex ductwork for my new exhaust fan in Bloomingdale?

Flex ductwork is allowed as a transition (short runs), but the main duct run to the exterior should be rigid or semi-rigid aluminum. Flexible ductwork left unsupported in cold attic spaces accumulates condensation and defeats the purpose of exhaust ventilation. Bloomingdale inspectors will ask how the ductwork is routed; if it is all flex and not insulated, they will likely reject the plan. Use rigid insulated duct for at least 80% of the run, and keep flex connections short.

What is the difference between GFCI and AFCI, and why does my bathroom need both?

GFCI (ground-fault circuit interrupter) protects against electrocution by monitoring current flow between the hot and neutral wires; if a person touches a hot wire while wet, the GFCI trips and cuts power in milliseconds. AFCI (arc-fault circuit interrupter) protects against fires caused by arcing (sparking) in wires or connections. In a bathroom, outlets within 6 feet of a sink, tub, or toilet need GFCI protection (shock hazard). Outlets outside that zone and light fixtures need AFCI protection (fire hazard). Many modern panels use AFCI/GFCI combination breakers to provide both protections on the same circuit. Bloomingdale will require both protections on new bathroom circuits.

How long does it take to get a bathroom remodel permit approved in Bloomingdale?

Plan for 2–3 weeks for the initial plan review, and add 1–2 weeks if Bloomingdale issues comments and you need to resubmit. Waterproofing details, structural questions, or incomplete electrical diagrams often trigger resubmittals. Once approved, you get the permit and can begin work. The full inspection cycle (rough-in through final) typically takes 4–6 weeks depending on your contractor's schedule. Total time from application to final sign-off: 6–8 weeks is realistic for a typical full bathroom remodel.

If I am selling my home, do I need to disclose that I did a bathroom remodel without a permit?

Yes. Illinois Residential Real Property Disclosure Act requires sellers to disclose all unpermitted work. If a bathroom remodel was done without a permit and not disclosed, the buyer can sue for rescission (backing out of the sale) or price reduction. Even if the work was done decades ago, it is a disclosure issue. The safest approach is to either obtain a retroactive permit (if Bloomingdale allows it and the work is still visible and testable) or to disclose the unpermitted work and accept the consequences (price reduction, buyer demand for correction). Many title companies and lenders will flag unpermitted bathroom remodels and refuse to insure or finance the property.

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 Bloomingdale Building Department before starting your project.

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