Bathroom Remodel Permit in Collinsville, IL (2026)

Research by DoINeedAPermit Research Team · Updated May 2026

The Short Answer

A full bathroom remodel in Collinsville requires a permit if you're moving plumbing fixtures, adding electrical circuits, installing a new exhaust fan, converting a tub to shower, or moving walls. Surface-only work (tile, vanity replacement in place, faucet swap) does not need a permit.

Collinsville Building Department follows the Illinois Building Code, which is adopted statewide — but Collinsville has a notably streamlined online permit portal and typically completes plan review for bathroom projects in 2-3 weeks, faster than many downstate Illinois municipalities. The city operates under Chapter 16 of its municipal code for building permits and does not impose unusual local amendments to the IRC for bathroom work. Unlike some Illinois cities that require separate plumbing and electrical permits with different fees, Collinsville bundles bathroom remodels into a single permit application in most cases, keeping the total fee in the $300–$600 range for a typical gut remodel. The city's building inspectors are familiar with owner-builder work and allow owner-occupied bathrooms to be pulled and inspected by homeowners, though a licensed contractor is required for any new plumbing or electrical rough-ins if the scope crosses certain thresholds (verify with the department for your specific project). Collinsville's location in Madison County (southern Illinois, Zone 4A) means frost depth is 36 inches, not the 42-inch depth that applies north of I-70 — a detail that matters for any foundation or slab work but not for interior bathroom remodels. The city does not have unusual flood-zone or historic-district overlays that would trigger additional bathroom review.

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

Stop-work order and $500–$1,500 fine from Collinsville Building Department; you'll be required to pull a permit retroactively and pay double or triple the original permit fee (up to $1,800–$2,400 total) plus re-inspection costs.
Insurance claim denial: if a bathroom fire, water damage, or electrical failure occurs and the insurer discovers unpermitted work, they can refuse to cover the loss (typical claim denial value $15,000–$50,000+).
Home sale or refinance blocked: Illinois Residential Disclosure Act requires disclosure of unpermitted work; buyers and lenders often demand a city certificate of compliance or will reduce the offer by 3-8% of home value ($10,000–$40,000 on a $300,000 home).
Forced removal or correction at your expense: Collinsville can order you to remove non-compliant work or hire a licensed contractor to bring it up to code, often costing 150-200% of what a permitted project would have cost ($5,000–$15,000+).

Collinsville bathroom remodel permits — the key details

Collinsville's permit requirement for bathroom remodels hinges on whether the scope crosses into structural, plumbing, electrical, or mechanical changes. Per Illinois Building Code (which Collinsville adopts), any work that involves relocating a toilet, sink, or drain requires a plumbing permit. Any work that adds a new circuit, moves an outlet, or installs a new exhaust fan requires an electrical permit. Converting a bathtub to a shower (or vice versa) triggers a permit because the waterproofing assembly changes and must be inspected per IRC R702.4.2. Moving walls, removing load-bearing studs, or relocating a vent stack all require permits. The bright line: if you're only swapping a vanity for a new one in the same footprint, replacing a faucet, re-tiling an existing shower, or upgrading a toilet in place, no permit is needed. Collinsville Building Department is explicit on this in its online guidance — surface finishes and like-for-like fixture replacement are exempt. However, if your vanity relocation requires moving the water supply or drain lines even slightly, a permit applies.

The most common trigger for a full bathroom remodel permit in Collinsville is GFCI and AFCI electrical compliance. Illinois follows the National Electrical Code (NEC), and per NEC 210.8(A)(1), all outlets within 6 feet of a sink and all outlets in a bathroom must be GFCI-protected. If your bathroom doesn't have GFCI protection or if you're adding new circuits to power lights, exhaust fans, or heated towel racks, the electrical work must be permitted and inspected. Collinsville inspectors will verify GFCI installation during rough electrical inspection — this is non-negotiable and represents about 30% of bathroom permit rejections. Similarly, NEC 210.12 requires AFCI protection on bedroom circuits, and many older Collinsville homes have no AFCI protection; remodeling a primary bath that shares a wall with a bedroom often triggers a requirement to upgrade that bedroom circuit to AFCI-protected too. Homeowners often discover this requirement during plan review and are surprised by the added cost ($200–$400 for a new AFCI breaker and circuit reconfiguration).

Plumbing code compliance is the second major friction point. IRC P2706 governs drainage fittings, and IRC P2704 limits trap arm length — the horizontal distance from a trap to the vent stack — to 3 feet for a toilet and 5 feet for a sink. If you're relocating a toilet or sink more than a few feet away from its current vent stack, you may need to reroute ductile iron or PVC drainpipe, and if the trap arm exceeds code length, you'll need to run a secondary vent (typically a 1.5-inch PVC stack or air admittance valve). Collinsville inspectors check trap arm length and vent termination on rough plumbing inspection; a violation discovered after drywall is closed can cost $1,500–$3,000 to remediate. For tub-to-shower conversions, IRC R702.4.2 requires a waterproofing membrane and vapor barrier behind tile. The code does not prescribe a single method — cement board + membrane, acrylic sheet, prefab shower pan, or other approved systems all comply — but the specification must be shown on the permit application and approved by the building department. Collinsville commonly rejects plan submissions that don't specify the waterproofing method or show no membrane detail. Generic language like 'waterproof membrane per code' will not pass; you must name the product (e.g., 'Schluter Kerdi membrane, 1/2-inch cement board, thinset mortar, ceramic tile per ANSI A108.02').

Exhaust fan installation is another frequent issue in Collinsville bathroom permits. IRC M1505.2 requires bathroom exhaust fans to terminate outside the home (not into an attic) and to be ducted with rigid or semi-rigid ductwork, not the flexible dryer-vent ductwork many homeowners install by default. The duct must be 4 inches in diameter (or equivalent) and terminate with a dampered cap. Collinsville inspectors ask to see duct routing and termination point on the plans — and they will inspect the duct during rough-in to verify it's not run to the attic, soffit, or crawl space. A common violation is flexible ducting run 15+ feet with 90-degree bends; it should be rigid ductwork or limited flex runs of 8 feet maximum with no more than one 90-degree elbow. If you're installing a high-CFM exhaust fan (100+ CFM), you may need to supply fresh air makeup to avoid negative pressure in the home — this is often missed in permits and can lead to draft issues or moisture problems after the project is complete. Collinsville doesn't impose a stricter CFM requirement than the code, but inspectors will flag undersized fans (e.g., a 50-CFM fan for a 100-square-foot bathroom; code requires roughly 1 CFM per square foot or 20 CFM minimum).

Practical next steps: download the permit application from the Collinsville Building Department website or call the department directly to confirm the current online portal URL. Gather your architect plans or contractor drawings showing the new fixture locations, electrical layout with GFCI/AFCI detail, plumbing drain routing, and waterproofing specification if applicable. If your home was built before 1978, notify the department in writing that you're aware of potential lead paint; Collinsville will require lead-safe work practices per the EPA RRP Rule (but this will not delay the permit, only add a contractor requirement). Submit the application online (preferred) or in person, including a statement of value for the remodel (typically $75–$150 per square foot for a bathroom, so a 50-square-foot full gut runs $3,750–$7,500 in estimated value). The permit fee is usually 1.5-2% of stated value, so $56–$150 for a $3,750 project or $56–$300 for a $7,500 project; Collinsville caps most residential permits at $600. Plan review takes 2-3 weeks. Once approved, you'll receive a permit number and can begin rough-in work (plumbing, electrical, framing). Rough-in inspections typically happen in sequence: rough plumbing, rough electrical, framing (if walls are moved), and final drywall/finish inspection. Most bathroom remodels pass final inspection on the first or second attempt if plans were clear; typical trouble spots are missing GFCI outlets, duct not yet sealed or run to attic, or vanity blocking access to a shut-off valve.

Three Collinsville bathroom remodel (full) scenarios

Scenario A

Like-for-like vanity and faucet replacement, same location, no new electrical or plumbing — Collinsville bungalow

You're removing an old pedestal sink and installing a new vanity (24x18 inch, wall-mounted) in the same footprint, with the faucet holes matching the existing supply lines. The drain is already in place. You're not moving any plumbing, not adding electrical outlets, and not upgrading the exhaust fan. This is a surface-level cosmetic upgrade and does not require a Collinsville building permit. You can purchase the vanity, faucet, and trim kit (supply risers, shut-off valves, P-trap) from a home center, install it yourself, and caulk the seams without any city approval. However, if you discover the existing shut-off valves are corroded or the supply lines need replacement (e.g., old galvanized steel), you may run into a gray area: the city could argue that a supply-line upgrade crosses into 'plumbing work' and requires a permit. To be safe, if you're replacing more than the vanity itself (e.g., new supply lines, new shut-off valve, new trap), call Collinsville Building Department and ask whether your scope is exempt or requires a permit — a 5-minute phone call can save you trouble later. Timeline: 4-8 hours of DIY work, or $400–$800 if you hire a handyman. No permits, no fees, no inspections.

Scenario B

Full bathroom gut remodel with toilet and sink relocation, new shower enclosure (tub-to-shower conversion), new exhaust fan duct, minor wall removal — Collinsville ranch home

You're gutting a 40-square-foot primary bathroom: removing the existing cast-iron tub and fiberglass surround, building a custom tile shower with a new tile pan and waterproofing membrane, moving the toilet 4 feet to the left (new drain routing required), relocating the pedestal sink to the opposite wall (new supply and drain), installing a new 80-CFM exhaust fan with rigid ductwork to the soffit, removing the wall between the bathroom and an adjoining hallway closet (non-load-bearing), and upgrading all outlets to GFCI. This requires a Collinsville building permit. The scope includes plumbing fixture relocation (toilet and sink), drain rerouting (potential trap-arm-length issue if the toilet's new location is far from the existing vent stack), electrical circuits for the exhaust fan and vanity outlets (GFCI required per NEC 210.8), framing work (wall removal), and a waterproofing assembly change (tub to shower). Estimated project cost: $8,000–$12,000. Permit fee: $300–$500 (based on ~$10,000 project value at 2% rate, under the city cap). Plan review: submit architect or contractor drawings showing new fixture locations, drain/vent routing, electrical layout with GFCI detail, and waterproofing spec (e.g., 'Schluter Kerdi membrane system, 1/2-inch cement board, thinset, porcelain tile'). Plan review takes 2-3 weeks. Once approved, you can pull the permit and begin work. Rough-in inspections: (1) rough plumbing (trap arms, vent stack, supply lines), (2) rough electrical (new circuits, GFCI rough-in, exhaust fan wiring), (3) framing (if wall removal is structural — Collinsville will flag if you need a structural engineer). After rough inspections pass, drywall and tile installation proceeds. Final inspection verifies GFCI operation, exhaust fan duct sealed and termination clear, waterproofing intact, and all fixtures operational. Most projects pass final on the first visit if rough-in was clean. Timeline: 4-6 weeks from permit pull to final inspection, plus 1-2 weeks for drywall/tile cure time before using the space.

Permit required (fixture relocation, electrical, plumbing, frame work) | Estimated permit fee $300–$500 | Contractor cost $8,000–$12,000 | Rough plumbing, rough electrical, framing, final inspections | Plan review 2-3 weeks | Construction 3-4 weeks after permit approval

Scenario C

Existing shower tile and grout refresh, new pressure-balanced valve cartridge and trim, shower head swap, new exhaust fan (same location, existing duct) — Collinsville colonial

Your shower is 20 years old and leaking from around the old valve body. You plan to remove the tile face (partial demo), replace the valve cartridge with a new pressure-balanced cartridge (same trim ring, same escutcheon holes), install a new shower head (same arm location), and retrofit a new exhaust fan motor/damper into the existing duct housing. This is a gray-area project that likely does not require a permit, but the answer hinges on whether the valve replacement involves opening the wall behind the tile. If you can access the valve from inside the wall cavity (e.g., there's an access panel or the wall is open to a closet), you can swap the cartridge without disturbing the tile, and no permit applies — this is a like-for-like fixture service. If opening the tile to access the valve means you'll also re-waterproof behind the tile (removing cement board, re-applying membrane, etc.), a permit argument can be made that you're altering the waterproofing assembly and should pull a permit. To be safe, call Collinsville Building Department and describe the scope: 'We're replacing a valve cartridge and shower head, existing duct, no new electrical or plumbing.' Likely answer: 'No permit needed if you're only swapping the cartridge and head.' If the inspector says 'That's fine,' proceed. If they say 'If you're opening the wall, bring it in for a permit,' respect that and apply. The exhaust fan motor swap (same location, existing duct) is a straightforward mechanical replacement and does not require a permit — you're not running new ductwork or changing termination. Cost: $300–$600 in materials and labor if DIY; $800–$1,200 if hiring a handyman. No permit means no fees.

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Collinsville building department workflow and permit timelines

Collinsville Building Department is a small office (typically 2-3 inspectors) located in city hall. They process permits Monday through Friday, 8 AM to 5 PM. The city operates an online permit portal that allows homeowners and contractors to submit applications, track status, and schedule inspections without visiting in person — a convenience that sets Collinsville apart from many smaller Illinois municipalities that still require in-person submissions. The portal is accessible from the city's main website; search 'Collinsville Illinois building permit online' or call the department directly to confirm the current URL (phone number typically listed on the city hall website). For bathroom remodels, the standard workflow is: (1) submit application with plans online, (2) wait 2-3 weeks for plan review (Collinsville aims for 14-21 days but can stretch to 3 weeks if the project is complex or if the inspector needs clarification from the contractor), (3) receive approval or a request for revisions (most bathroom remodels are approved with minor notes, e.g., 'Clarify waterproofing detail' or 'Confirm GFCI outlet locations'), (4) revise and resubmit within 1-2 weeks, (5) receive final approval and permit number, (6) schedule rough-in inspection by calling or using the online portal.

Rough inspections are typically scheduled 1-2 weeks after the permit is issued, depending on the inspector's calendar. Collinsville has a reasonable inspection schedule for small projects; you can usually get a rough plumbing inspection within 5-7 days of submitting a request. The inspector will verify trap arms, vent routing, drain slopes, and supply-line sizing. Rough electrical inspection checks for GFCI rough-in, circuit breaker sizing, and wire gauges. If either inspection fails (e.g., duct is still flexible instead of rigid, or GFCI is not roughed in yet), you'll have 1-2 weeks to correct and reschedule. Most bathroom remodels pass rough inspection on the first visit if the contractor was careful during framing and rough-in. Final inspection is scheduled after drywall, tile, and fixtures are installed; the inspector verifies that all outlets are GFCI-functioning, the exhaust fan duct is sealed and terminating outside, the waterproofing is intact and not damaged during finish work, and all fixtures (toilet, sink, shower) operate. Final inspection is often completed in one visit and the permit is closed out. Total timeline from submission to final approval is typically 6-10 weeks, not including the 1-3 weeks between final inspection and occupancy (waiting for waterproofing, tile grout, and paint to cure).

One quirk of Collinsville: the city allows owner-builder permits for owner-occupied homes, meaning a homeowner can pull the permit themselves and perform the work themselves, without hiring a general contractor. However, plumbing and electrical rough-in work must still be inspected and signed off by the city; you cannot perform the plumbing or electrical rough-in yourself unless you hold a journeyman plumber or electrician license. Many homeowners misunderstand this: they think an owner-builder permit means they can do everything themselves. Not so. You can demo, frame (non-structural walls), install tile, paint, and fixtures, but plumbing and electrical rough-in must be done by a licensed contractor and inspected by the city. This is a source of confusion and occasional violation. If you're considering DIY, be clear with Collinsville about the scope: 'I'll do demolition and finish work; I'm hiring a licensed plumber and electrician for rough-in.' They'll approve the permit and ensure the licensed trades pull the rough-in work.

Common code issues and how to avoid bathroom permit rejections in Collinsville

The number-one reason bathroom permit applications are rejected or delayed in Collinsville is missing or unclear waterproofing specification on the plans. IRC R702.4.2 requires a waterproofing membrane in shower enclosures, but the code does not mandate a single method — you can use cement board plus a sheet membrane (Schluter Kerdi, RedGard, etc.), an acrylic pan, a prefab shower base, or other approved systems. However, the plan must specify which method. If you submit plans that say 'Waterproof membrane per code' or 'Tile shower, waterproofing TBD,' the inspector will issue a request for information asking you to name the product or system. This delays the permit by 1-2 weeks. To avoid it, specify early: 'Shower enclosure: 1/2-inch cement board, Schluter Kerdi 1.4mm polyethylene membrane, thinset mortar, ceramic tile.' Get the product datasheet and include it with the application if you're uncertain. Collinsville inspectors are familiar with all major systems and will approve them quickly if you name them upfront.

The second-most common rejection is inadequate GFCI detail on electrical plans. The plan must show every GFCI outlet location, and if multiple outlets are being added (e.g., vanity, exhaust fan, heated towel rack), you must indicate which outlet provides GFCI protection for the others. Per NEC 210.8, all outlets within 6 feet of a sink and all bathroom outlets must be GFCI-protected. If you're adding a vanity outlet 4 feet from the sink, that outlet must be GFCI. If you're adding a heated towel rack outlet 3 feet from a shelf above the sink, that outlet must be GFCI. If you show the outlets on the plan but don't label them GFCI or don't indicate which is the source, the inspector will ask for clarification. To avoid delays, label every bathroom outlet on the plan with 'GFCI' and identify the circuit. If you're unsure, ask your electrician to include a note: 'All bathroom outlets protected by GFCI breaker or receptacle per NEC 210.8(A)(1).' Collinsville will approve this language instantly.

Third issue: trap arm length and vent routing on relocated drains. IRC P2704 limits the distance from a trap to a vent: 3 feet for a toilet, 5 feet for other fixtures. If you're relocating a toilet 8 feet away from the existing vent stack (e.g., in a master bath expansion), you'll need to run a new vent. The plan must show the vent routing — either a secondary vent stack to the roof or an air admittance valve (AAV) inside a cabinet. Many homeowners and contractors don't plan this early and discover the violation during rough plumbing inspection, requiring wall opening and expensive rework. To avoid it, hire a plumber to review the proposed fixture locations and vent routing before you submit plans. If the toilet is moving more than 3 feet from the current vent, include a new vent on the plan. Collinsville inspectors will verify this during rough plumbing and will stop work if the vent is missing or if trap arm exceeds code length.

Fourth issue: exhaust fan duct routing. The plan must show where the duct terminates (soffit, roof, or exterior wall, not attic or crawl space). IRC M1505.2 requires termination outside the conditioned space. Many homeowners assume they can run the duct to the attic — it's convenient and hidden. Wrong. Collinsville inspectors will inspect the duct and if they find it terminates in an attic, soffit, or crawlspace, they'll issue a 'Do Not Occupy' order until it's rerouted. To avoid this, specify on the plan exactly where the duct exits (e.g., 'Exhaust duct routed through joist bay to east wall, exits at soffit 8 feet above grade, dampered cap per ICC/ANSI SM100'). If you're unsure about duct routing, ask the HVAC contractor to confirm before you submit plans. A photo or drawing showing the duct exit point is helpful.

City of Collinsville Building Department
Collinsville City Hall, Collinsville, IL (exact address at www.collinsville.il.us or by phone)
Phone: Call Collinsville City Hall main line and ask for Building Department, or search 'Collinsville Illinois building permit phone' | Collinsville online permit portal (visit www.collinsville.il.us or contact department for portal URL)
Monday–Friday, 8 AM–5 PM (verify locally)

Common questions

Do I need a permit if I'm just replacing my shower head and vanity faucet in place?

No. If you're swapping a shower head or faucet in the same location without moving supply lines or drains, no permit is needed. This is considered a like-for-like fixture replacement and is exempt under Collinsville's building code. If your supply lines are corroded and you need to run new lines to the same fixture, call the Building Department to ask whether that scope requires a permit; most such repairs are still exempt, but it's worth a 5-minute phone call to be sure.

What happens if I convert a bathtub to a shower without a permit?

You will have violated Collinsville building code because a tub-to-shower conversion changes the waterproofing assembly, which triggers a permit requirement per IRC R702.4.2. If the city discovers unpermitted work (through a neighbor complaint, home sale inspection, or insurance claim), you could face a stop-work order, fines of $500–$1,500, and a requirement to pull a retroactive permit and pay double fees. If a water leak damages your home afterward and you file an insurance claim, the insurer may deny it because of unpermitted work. To be safe, apply for a permit if you're converting a tub to a shower. Plan review is 2-3 weeks, and the total permit fee is typically $250–$500.

Can I pull a bathroom remodel permit myself as a homeowner in Collinsville, or do I need a contractor?

You can pull the permit yourself if it's an owner-occupied home; Collinsville allows owner-builder permits. However, any plumbing or electrical rough-in work must be done by a licensed plumber or electrician and inspected by the city — you cannot perform that work yourself. You can handle demolition, framing of non-structural walls, tile work, painting, and fixture installation. When you apply for the permit, make clear: 'I am the owner, I will do finish work, and I am hiring a licensed plumber and electrician for rough-in.' The city will approve the permit and require sign-offs from the licensed trades.

How much does a bathroom permit cost in Collinsville?

Collinsville's permit fee is typically 1.5% to 2% of the project's estimated valuation, capped at $600 for most residential projects. For a $5,000 bathroom remodel, expect a $75–$100 permit fee. For a $10,000 remodel, expect $150–$200. The fee is calculated when you submit the application and is payable when the permit is issued. There are no separate plumbing or electrical permit fees; bathroom work is bundled into a single permit in most cases.

What if I discover after finishing my bathroom that I needed a permit but didn't pull one?

Call Collinsville Building Department immediately and ask about a Certificate of Occupancy inspection or retroactive permit review. If the work is compliant with code, the city may issue a retroactive permit and allow occupancy. If the work is not compliant (e.g., duct goes to attic, GFCI is missing), you'll be ordered to correct it before occupancy. You'll also owe double the original permit fee or a remediation fee ($300–$600+). When you sell the home, Illinois requires disclosure of unpermitted work; buyers and lenders will demand a city sign-off or will reduce the offer. It's far cheaper to pull the permit upfront ($250–$500) than to remediate and disclose later ($1,500–$5,000+).

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

Plan review typically takes 2-3 weeks from submission. If your plans are clear and complete (fixture locations, electrical detail with GFCI, waterproofing spec, duct routing), you'll often get approval in 2 weeks. If the inspector has questions or needs clarification (e.g., missing waterproofing detail, unclear duct termination), you'll receive a request for information; you'll then have 1-2 weeks to revise and resubmit. Once approved, you can begin work. Rough-in inspections (plumbing, electrical, framing) are typically scheduled 1-2 weeks after you request them. Final inspection follows after drywall and finish work. Total timeline from submission to final approval is usually 6-10 weeks.

Do I need a separate permit if I'm just installing a new exhaust fan in an existing ductwork?

If you're replacing a fan motor in an existing duct that already terminates outside (not in an attic), you likely do not need a separate permit — this is a like-for-like mechanical replacement. However, if you're installing a new exhaust fan with new ductwork or changing the duct termination location, a permit is required to verify the new duct is routed correctly and terminates outside per IRC M1505.2. When in doubt, describe the scope to Collinsville Building Department: 'I'm installing a new 80-CFM fan with new duct to the soffit.' They'll tell you whether it requires a permit. Most new-duct installations do.

What is the most common reason bathroom permits are rejected in Collinsville?

The most common rejection is missing or unclear waterproofing specification on shower-enclosure plans. The plan must name the waterproofing method (e.g., Schluter Kerdi membrane, cement board plus sheet membrane, or prefab pan) and ideally include a product datasheet. Generic language like 'waterproofing per code' will trigger a request for information and delay the permit by 1-2 weeks. The second-most common issue is inadequate GFCI detail on electrical plans. Specify every GFCI outlet location and indicate which outlet is the source. A third common issue is missing vent routing on relocating drains — if a toilet moves more than 3 feet from the existing vent, you need a new vent on the plan. To avoid rejections, hire a plumber and electrician to review your plans before submission.

If my home was built before 1978, are there special requirements for bathroom remodel permits in Collinsville?

Yes. Collinsville homes built before 1978 may contain lead-based paint. When you apply for the permit, inform the city that the home is pre-1978. The city will require that any contractor performing demolition or disturbance work be EPA-certified for lead-safe practices per the RRP Rule. This adds a contractor certification requirement but does not delay the permit or impose additional city fees. Ensure your contractor is certified and follows lead-safe protocols (containment, HEPA vacuuming, proper waste disposal). This is a federal requirement, not unique to Collinsville, but it's important to flag early.

Can a bathroom remodel permit be done online in Collinsville, or do I need to visit in person?

Collinsville offers an online permit portal that allows you to submit applications, track status, and schedule inspections without visiting city hall in person. The portal is accessible from the city website. You'll upload your plans, describe the project, estimate the valuation, and pay the permit fee online. Rough-in and final inspections can typically be scheduled online or by phone. A few projects may require an in-person meeting with the inspector for clarification, but the majority of bathroom remodels can be completed entirely online. Call the Building Department or check www.collinsville.il.us for the portal link.

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 Collinsville Building Department before starting your project.

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