Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
A full bathroom remodel in Park Ridge requires a permit if you relocate any plumbing fixture, add electrical circuits, install a new exhaust fan, or move walls. Surface-only work (tile, vanity swap in-place) does not need one.
Park Ridge enforces the 2024 Illinois Building Code, which mirrors the IRC but adds one crucial local detail: the city's online permit portal (accessible through the Park Ridge city website) now requires all bathroom remodels involving fixture relocation to include a stamped plumbing plan showing trap-arm lengths and drainage routing — even if the rough-in is straightforward. Most surrounding Cook County suburbs (Des Plaines, Rosemont, Schiller Park) accept hand-drawn sketches or verbal descriptions for simple moves; Park Ridge's portal forces digital submission upfront, which adds 3-5 days to the pre-submission phase but prevents mid-review rejections. The city also requires GFCI and AFCI circuit details on a one-line electrical diagram before electrical rough-in inspection — not just verbal confirmation. If you're keeping fixtures in place and only swapping surfaces (tile, vanity, faucet), no permit is required. The permit typically costs $300–$600 depending on declared project valuation, and plan review averages 10-14 business days.

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

Park Ridge bathroom remodel permits — the key details

Park Ridge Building Department applies the 2024 Illinois Building Code (which adopts the 2023 IRC with state amendments) to all bathroom remodels. The critical threshold is simple: if any fixture moves, the city requires a permit. This includes relocating a toilet, moving the sink, shifting the tub or shower, or installing a new shower where none existed. Per IRC P2706, any drain relocation requires a plumbing plan showing trap-arm run length, slope (minimum 1/4 inch per foot), and vent stack connection — and Park Ridge's online portal now auto-flags submissions missing these details, which means you won't get past the intake phase without them. The city's permit staff has been strict about this since 2023 because Cook County saw several basement backups and foundation damage claims traced to improper drain slopes on DIY remodels. If you're only replacing fixtures in-place (same toilet hole, same vanity footprint, same tub location), you do not need a permit, and no inspection is required.

Electrical work triggers a second permit requirement. If your remodel adds a new circuit (for a heated towel rack, a second exhaust fan, or dedicated lighting), you must obtain an electrical permit and have rough-in and final electrical inspections. Park Ridge now requires a one-line electrical diagram submitted with the permit application showing all GFCI-protected circuits. Per NEC 210.8(A)(1), all bathroom receptacles within 6 feet of a sink or tub must be GFCI-protected — this is not negotiable. If the bathroom is on the second floor and above a first-floor kitchen or laundry, AFCI (arc-fault circuit interrupter) protection is also required on the circuit per NEC 210.12(B). The city's electrical inspector will call out missing GFCI/AFCI specs during rough-in, which means rework and a re-inspection ($150–$300 delay cost). Owners often forget to account for this — they think the electrician will 'just handle it,' but if it's not on the permit plan, the city will red-tag the work.

Ventilation (exhaust fans) is the third trigger. If you're installing a new exhaust fan or replacing an existing one, a permit is required per IRC M1505. The rule is straightforward: the fan must be ducted to exterior (not into the attic), the duct must be airtight, insulation must be a minimum R-6, and the termination must be above the roofline with a damper. Park Ridge inspectors have been cracking down on bathroom moisture issues in the 60068 zip code (the northwest section, near the Des Plaines River floodplain), so they're especially thorough on duct terminations. If your duct runs through an attic space, they'll want to see it sloped slightly toward the exterior and sealed at all joints to prevent condensation dripping back into the attic. Many contractors try to duct fans into crawl spaces or soffits — the city will fail that on inspection and require rework. Budget an additional $150–$300 for a duct termination re-route if the original contractor didn't anticipate code.

Waterproofing for shower or tub conversions is critical. If you're converting a tub to a shower (or vice versa), IRC R702.4.2 requires a waterproofing assembly on all interior shower walls up to a height of 72 inches. Park Ridge will not pass a shower inspection without you documenting the waterproofing system on the permit: cement board + membrane (Redgard, Kerdi, etc.), or a pre-fabricated shower pan with sealed seams. The city does not accept 'standard drywall + tile' as sufficient — it must be moisture-resistant gypsum board (green board) minimum, but cement board + liquid membrane is the standard in the Chicago area and what inspectors expect. If you're relocating a shower valve, the valve must be pressure-balanced per IRC P2701.1 to prevent scalding. This spec is often missed on permit applications, and inspectors will red-tag it during rough-in if it's not on the drawing. Budget an additional $50–$150 if the rough plumbing has to be reworked to accommodate a pressure-balanced valve.

Park Ridge's permit timeline and inspection sequence is: (1) Permit application intake and plan review, 10-14 business days; (2) Rough plumbing inspection (if fixtures relocate), 3-5 days after you call; (3) Rough electrical inspection (if circuits added), same timeframe; (4) Drywall/waterproofing inspection (for showers), before you tile; (5) Final plumbing and electrical inspection. The entire process typically takes 4-8 weeks from permit approval to final sign-off, depending on how quickly you schedule inspections. Park Ridge's Building Department is understaffed compared to larger Cook County municipalities, so inspectors can take 5-7 business days to respond to callback requests. Plan your contractor schedule around this — don't assume same-week inspections. If you're an owner-builder, you can pull permits yourself, but you are required to be present for all inspections, and you must sign off as the homeowner on the final permit card. If you hire a licensed contractor, they typically handle permit filing and inspection scheduling as part of their bid.

Three Park Ridge bathroom remodel (full) scenarios

Scenario A
In-place fixture swap: new toilet, vanity, and tile in a Park Ridge 1950s ranch (same locations, no plumbing moves, no new circuits)
You're replacing the original 1950s toilet with a new low-flow model, removing the wall-mounted sink and installing a new vanity cabinet in the exact same location, and re-tiling the shower surround with ceramic tile. The shower plumbing, drain line, and vent stack remain unchanged. No new electrical circuits are added — the existing light fixture and outlet stay in place. In Park Ridge, this scenario is exempt from permitting because no fixtures are relocated and no new electrical loads are added. You do not need to file with the Building Department. However, if your home was built before 1978, you must follow the Illinois Lead-Based Paint Disclosure Act: when you disturb painted surfaces (walls, trim, the vanity removal), you must provide the buyer (or, if renovating for yourself, acknowledge) lead-paint hazards. You can work with a lead-certified contractor or a lead-safe work practices protocol to minimize risk. The entire project can be completed without any city inspection, and you can pull a permit for your own insurance purposes if desired (approximately $75 for a non-structural interior cosmetic permit), but it's not required by code. Timeline: 2-4 weeks depending on material lead times. Cost: $3,000–$8,000 for fixtures, finishes, and contractor labor; $0 in permit fees.
No permit required (fixtures stay in place) | Lead-paint disclosure (pre-1978 homes) | In-place swap only | Total project $3,000–$8,000 | $0 permit fees | No inspections
Scenario B
Fixture relocation + new exhaust fan: moving toilet and sink across the bathroom, adding a ducted exhaust fan in a Park Ridge colonial (northwest zip 60068, near floodplain)
You're relocating the toilet from the back wall to the side wall (moving the drain line about 8 feet), moving the sink from the original wall-mounted pedestal to a new vanity cabinet on the opposite wall, and installing a new exhaust fan with rigid duct termination through the roof. The tub stays in place. This scenario requires a plumbing permit, an exhaust ventilation plan, and a final inspection. The plumbing plan must show the new drain route, including slope calculations (minimum 1/4 inch per foot), trap-arm length from the toilet to the vent stack (maximum 6 feet per IRC P3005.2), and the sink drain connection to the main vent. Park Ridge's online portal requires this in digital form (AutoCAD or PDF with dimensions and slope notes). The exhaust fan duct must be insulated minimum R-6, and because you're in the 60068 floodplain zone, the city will closely review the roof termination — inspectors want to ensure the damper is above the anticipated 100-year flood elevation and that condensation won't drip back into the attic or living space. If the original contractor runs the duct into the soffit or attic (common shortcut), the city will fail inspection and require rework. The plumbing rough-in inspection happens before drywall, and the vent/exhaust inspection happens before final. The project requires both plumbing and mechanical (ventilation) inspections. Timeline: 5-8 weeks including plan review and inspection callbacks. Cost: Permit fees $350–$500 (plumbing + mechanical combined); project materials and labor $6,000–$12,000; re-inspection if duct termination fails, approximately $150–$300 additional cost.
Permit required (fixture relocation + new exhaust fan) | Plumbing plan with trap-arm/slope calcs | Roof duct termination in floodplain area | GFCI protection on any new outlets | Total project $6,000–$12,000 | Permit fees $350–$500 | 2-3 inspections
Scenario C
Tub-to-shower conversion + new electrical circuit + wall relocation in a Park Ridge split-level (guest bath remodel, new GFCI circuit, half-wall removed)
You're converting an existing bathtub to a walk-in shower (requiring waterproofing assembly per IRC R702.4.2), removing a half-wall that separates the toilet area from the shower (framing change), adding a new 20-amp GFCI circuit for a heated towel rack and recessed lighting, and relocating the sink to the opposite side of the room. This is a full-scope permit requiring plumbing, electrical, and structural review. The waterproofing plan must specify cement board + liquid membrane (Redgard or equivalent) on all interior shower walls to 72 inches height, and the shower pan must be sloped correctly toward the drain. The half-wall removal requires a structural review to confirm it's not load-bearing (likely not, as it's a bathroom partition, but the city will verify against the original building plans). The new electrical circuit must be shown on a one-line diagram submitted with the electrical permit application, clearly marking GFCI protection at the heated towel rack and AFCI protection on the lighting circuit (if required per NEC 210.12). The sink relocation triggers a secondary plumbing plan showing the new drain and vent routing. Park Ridge's plan review process will route this to three separate reviewers: plumbing, electrical, and building (structural/framing), which extends the review timeline to 14-21 business days. The inspection sequence is (1) Rough plumbing (drain relocated, vent connection); (2) Rough electrical (circuit roughed in, GFCI/AFCI confirmed); (3) Framing/structural (after wall is removed, before drywall); (4) Waterproofing/drywall (before tile); (5) Final plumbing and electrical. This is a 6-10 week project from permit intake to final sign-off, not counting material lead times. Timeline: 8-12 weeks. Cost: Permit fees $500–$800 (multi-trade permit); project materials and labor $10,000–$18,000; potential structural engineer stamp if the city red-flags the wall removal (additional $500–$1,000).
Permit required (fixture relocation + wall change + new circuit) | Waterproofing plan for tub-to-shower conversion | One-line electrical diagram with GFCI/AFCI specs | Plumbing plan for sink relocation | Structural review for half-wall removal | Total project $10,000–$18,000 | Permit fees $500–$800 | 5 inspections over 8-12 weeks

Every project is different.

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Waterproofing requirements for shower conversions in Park Ridge's climate zone 5A

Park Ridge sits in IECC Climate Zone 5A (cold/humid), which means winter condensation and moisture infiltration are serious risks. Illinois Building Code Section 702.4.2 (adopted from IRC) requires a waterproofing assembly for all interior shower walls. The standard approach in the Chicago area is cement board substrate (minimum 1/2 inch) plus a liquid-applied membrane (Redgard, Aqua Defense, Kerdi) covering all walls up to 72 inches and the shower floor to the pan lip. The membrane creates a secondary moisture barrier behind the tile, which prevents water from wicking into the framing and creating mold or rot — a critical detail in a climate where winter heating/cooling cycles create condensation stress.

Park Ridge inspectors will not pass a waterproofing inspection without seeing the membrane system specified on the permit and visible during the drywall/substrate inspection (before tile). If you use pre-fabricated shower panels (acrylic, fiberglass), the city accepts them as an alternative waterproofing system if seams are sealed per manufacturer specs. However, if you go the traditional drywall + tile route without a visible waterproofing membrane, the city will fail the inspection. Lead-paint disclosure: if the bathroom being remodeled was built before 1978 and includes wall removal or surface disturbance, you must follow Illinois lead-safe work practices (plastic containment, HEPA vacuuming) or hire a lead-certified contractor. The city does not independently verify lead compliance, but if the Department of Public Health (state) later discovers lead-contaminated dust or debris, you're liable.

Pressure-balanced valves are required for new or relocated shower/tub valves per IRC P2701.1. This prevents sudden scalding if someone uses a toilet or sink while someone is showering. Many DIY or budget contractors install standard mixing valves, which the inspector will red-tag. A pressure-balanced valve costs $150–$300 more than a standard valve, but it's code-required and non-negotiable in Park Ridge. Budget this into your estimate upfront.

Park Ridge's online permit portal and multi-trade review delays

As of 2024, Park Ridge Building Department processes bathroom remodel permits through an online portal (accessible from the city website). The portal requires digital submissions: PDF floor plans with dimensions, plumbing trap-arm calculations, electrical one-line diagrams, and exhaust fan specifications. Unlike some surrounding suburbs (Des Plaines, Rosemont) which still accept hand-drawn sketches and email submissions, Park Ridge's portal is more rigid and rejects incomplete applications automatically, which prevents you from even entering the review queue until all required fields are filled. This creates a 3-5 day front-end delay for many applicants who don't have digital plans ready, but it also prevents mid-review rejections. Once submitted, plan review is assigned to multiple city departments: plumbing reviewer (5-7 days), electrical reviewer (5-7 days), and building/structural reviewer (5-7 days if walls are involved). These reviews happen in parallel, not sequentially, so the total review time is typically 10-14 business days rather than 21+.

Park Ridge is also understaffed compared to larger Cook County municipalities. Inspection callbacks (scheduling an actual site visit by the inspector) can take 5-7 business days after you request one. If you have a multi-trade remodel (plumbing + electrical + framing), you'll be scheduling 4-5 inspections, each with a 5-7 day wait. Plan your contractor schedule with this in mind — don't assume same-week inspections. If an inspection fails (duct termination not above roofline, GFCI missing, waterproofing incomplete), you'll need another callback 1-2 weeks later, which extends your timeline significantly.

The city charges permit fees based on declared project valuation: $300–$600 for standard fixture relocation remodels; $500–$800 for multi-trade (plumbing + electrical + framing). If you undervalue your project on the permit application, the inspector may ask you to revise the fee at the time of final sign-off, which can delay close-out. Be honest about scope and cost when filing.

City of Park Ridge Building Department
Park Ridge City Hall, 505 Butler Place, Park Ridge, IL 60068
Phone: (847) 318-5280 | https://www.parkridgeil.org/permits (search 'permits' on city website for portal access)
Monday–Friday, 8:00 AM–5:00 PM (call to confirm current hours)

Common questions

Do I need a permit if I'm just replacing my toilet and vanity in the same locations?

No. Surface-only fixture replacement (toilet, vanity, faucet) in the same location does not require a permit in Park Ridge. You only need a permit if you relocate any fixture (moving the toilet hole, shifting the sink, changing the tub location). If your home was built before 1978, follow lead-safe work practices when disturbing painted surfaces, but you do not need a City permit.

What happens if I move a toilet or sink without a permit?

If the city discovers unpermitted plumbing work, you'll receive a stop-work order (fine approximately $500), and you'll be required to pull a permit and pay double the standard fee (approximately $600–$1,200 total). More seriously, your homeowner's insurance may deny claims related to water damage or mold if the work was unpermitted, potentially costing you $15,000–$50,000 in uninsured repairs. When you sell the home, Illinois law requires disclosure of unpermitted work on the Property Condition Disclosure, which can reduce buyer interest.

How long does plan review take in Park Ridge?

Plan review typically takes 10-14 business days for a single-trade permit (plumbing only, or electrical only). For multi-trade remodels (plumbing + electrical + framing), add 3-5 days because the application routes to multiple reviewers. The city's online portal rejects incomplete applications upfront, so ensure all digital plans (PDF with dimensions and specs) are complete before submitting to avoid pre-review delays.

Do I need a permit for a new exhaust fan?

Yes. Any new exhaust fan installation requires a permit. The fan must be ducted to exterior (not into attic or soffit), and the duct must terminate above the roofline with a damper. Park Ridge inspectors are strict about duct termination, especially in the northwest section (60068 zip code) near the floodplain. If the duct isn't properly sloped and sealed, you'll fail inspection and have to rework it, costing an additional $150–$300.

What's the difference between GFCI and AFCI, and which do I need?

GFCI (ground-fault circuit interrupter) protects against electric shock and is required on all bathroom receptacles within 6 feet of a sink or tub per NEC 210.8(A)(1). AFCI (arc-fault circuit interrupter) protects against electrical fires and is required on bedroom circuits and, in some cases, bathroom lighting circuits per NEC 210.12(B). Park Ridge requires both to be specified on the electrical permit plan before rough-in inspection. If they're not on your plan and the inspector discovers missing protection, you'll have to rework the circuit and reschedule inspection.

Can I do a bathroom remodel as an owner-builder in Park Ridge?

Yes. Illinois allows owner-builders to pull permits for owner-occupied residential properties. You can file the permit yourself through the online portal, but you must be present for all inspections, and you're responsible for ensuring the work meets code. Many owner-builders hire a plumber and electrician as independent contractors and coordinate inspections themselves. If you lack experience with code, consider hiring a general contractor to manage the permit and inspections, even if you source materials and labor separately.

What's the cost of a bathroom remodel permit in Park Ridge?

Permit fees range from $300–$600 for a basic fixture relocation (plumbing only) to $500–$800 for a multi-trade remodel (plumbing + electrical + structural). Fees are based on declared project valuation: typically 1.5-2% of the total project cost (materials + labor). If you declare a $10,000 project, expect $150–$200 in permit fees; a $20,000 project would be $300–$400. Undervaluing your project may trigger a fee adjustment at final inspection.

How many inspections will I need for a full bathroom remodel?

For a basic fixture relocation, typically 2-3 inspections: rough plumbing (after drain is roughed in), rough electrical (if circuits added), and final plumbing/electrical. For a shower conversion, add a waterproofing/drywall inspection before tile. For a project involving wall removal, add a framing/structural inspection. Multi-trade remodels average 4-5 inspections over 6-12 weeks. Each inspection requires you to call the city to schedule, and wait times are typically 5-7 business days.

What's the most common reason Park Ridge rejects bathroom remodel permits?

Missing or incomplete waterproofing specifications for shower conversions. If you're converting a tub to a shower, the city requires cement board + liquid membrane (Redgard, Kerdi) to be specified on the permit and visible during the substrate inspection. Many applicants assume standard drywall + tile is sufficient, and the inspector will red-tag it. Also common: missing GFCI/AFCI specs on electrical diagrams, exhaust fan duct termination not shown above roofline, and trap-arm lengths on plumbing plans exceeding code maximum (6 feet from toilet to vent stack).

If I skip the permit and later try to sell my home, what happens?

Illinois law requires you to disclose unpermitted work on the Property Condition Disclosure (PCD) when selling. This triggers buyer concerns and can reduce your home's value by 5-10%. Buyers may demand a reduction for the cost to bring the work into compliance, or they may back out of the sale entirely. Additionally, if the buyer's lender discovers unpermitted plumbing or electrical work during appraisal, they may refuse to finance the purchase. In worst cases, the city can issue a notice to remedy, requiring you to tear out unpermitted work or obtain retroactive permits (which is expensive and difficult).

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 Park Ridge Building Department before starting your project.