Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
A full bathroom remodel in Roy almost always needs a permit—unless you're only swapping fixtures in place without moving plumbing or electrical. If you're relocating fixtures, adding circuits, installing a new exhaust fan, or converting a tub to a shower, you must pull a permit from the City of Roy Building Department.
Roy's building department enforces Utah's adoption of the 2021 International Residential Code (IRC) with city amendments that reflect Wasatch Front seismic and frost-depth realities. Unlike some Utah cities that allow owner-builders more latitude on cosmetic-only bathroom work, Roy requires permit and inspection whenever ANY fixture is relocated—even if you're the owner doing the work yourself. The city's online permit portal (managed through their website) now allows single-project submissions, which beats the old requirement to visit City Hall in person; however, plan-review timelines run 2–5 weeks for bathroom remodels because the city's small building department (shared with neighboring Ogden area jurisdictions) processes permits sequentially. Critically, Roy sits in both Wasatch Front flood zones and unincorporated areas near the Wasatch Fault; your electrical plan MUST show GFCI/AFCI compliance, and any shower waterproofing assembly must be documented (cement-board-plus-membrane is the city's default expectation). Fees run $250–$600 depending on declared project valuation, plus inspection fees ($75–$150 per inspection, typically 3–4 required).

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

Roy bathroom remodel permits—the key details

Roy permit fees for a full bathroom remodel run $250–$600 in permit costs, plus $75–$150 per inspection (typically 3–4 inspections), for a total city fee of $500–$1,200. The fee is calculated as a percentage of declared project valuation; a $20,000 bathroom remodel is assessed at roughly 1.5–2.5% of that valuation. You'll also need to budget for plan drawings (if you're not using a contractor), a building survey if the bathroom abuts a property line (unlikely, but possible), and any code corrections discovered during review. Owner-builders are allowed in Roy for owner-occupied homes, but you must pull the permit yourself and pass all inspections; if you hire a contractor, they typically pull the permit and manage inspections. The city's online portal accepts applications 24/7, but plan-review staff work Monday–Friday, 8 AM–5 PM; emailed applications are not processed on weekends. Once your application is submitted, expect initial feedback within 5–10 business days; corrections are requested in writing, and resubmission restarts the review clock. Expedited review is not available for residential projects. If you're in a historic district or flood zone (the Wasatch Front has multiple overlays), additional plan-review steps may apply; check the city's zoning map before submitting. Final inspection must be scheduled at least 24 hours in advance via the online portal, and the city will not sign off on your project until all corrections are documented.

Three Roy bathroom remodel (full) scenarios

Scenario A
Cosmetic bathroom refresh—new tile, vanity swap in place, no plumbing move (Ogden-area Roy bungalow)
You're keeping the existing toilet, sink, and tub in their original locations, removing and replacing the tile surround, installing a new vanity cabinet in the same footprint, and refinishing the floor with luxury vinyl plank. No plumbing lines are relocated, no new electrical circuits are added, and no fixtures are moved. This is a surface-only cosmetic remodel and does not require a permit from Roy. However, if you tear out tile and expose the substrate beneath, the building official will expect to see that the wall assembly is sound (no water damage, no soft framing); if damage is discovered, you may be required to remediate and document the repair with a photo inspection, which could trigger a voluntary permit for transparency. The actual tile installation and vanity cabinet replacement can proceed without city approval. Timeline is your schedule—no waiting for permit review. Total project cost is $8,000–$15,000 (materials and labor), and zero permit fees. No inspections required. This scenario is common and straightforward; most homeowners correctly assume cosmetic work is exempt, but the surprise rule is that tearing out tile to a bare wall is visual evidence of substrate condition, and some inspectors will require photo documentation if damage is visible. If you want to avoid any ambiguity, you could call the Roy Building Department and ask if they want you to pull a voluntary 'documentation permit' (free or minimal fee) to cover the substrate work; most building officials will say no, but the option exists.
Scenario B
Tub-to-shower conversion with new waterproofing and exhaust-fan upgrade (Roy rambler in Roy Meadows subdivision, ground floor)
You're removing a 32-inch alcove bathtub, converting the space to a walk-in shower with a prefabricated acrylic pan, installing new cement-board substrate with fabric membrane waterproofing, and adding a new dedicated exhaust fan with ductwork vented through the roof (the existing fan vents into the attic and is non-compliant). The electrical plan shows a dedicated 20-amp circuit for the new fan on a humidity sensor, and all GFCI outlets within 6 feet of the sink are shown. This project requires a full permit from Roy because it involves a fixture conversion (tub to shower), a waterproofing assembly change, and new electrical work. The permit fee is $350 (based on a ~$18,000 project valuation at 1.9%). Inspections are required at rough plumbing (before framing closure, to verify trap and vent sizing), rough electrical (to verify the 20-amp circuit and GFCI outlets before the fan is roughed in), post-drywall (to verify waterproofing assembly—the building official will look for cement board, seam membrane, and documented waterproofing at the curb and valve penetration), and final (to confirm the exhaust duct terminates correctly through the roof, not in the attic). Plan-review turnaround is 3–4 weeks. Once approved, rough inspections can be scheduled within 5–7 days of each phase. The prefabricated shower pan satisfies waterproofing requirements, so you won't need to specify a custom cement-board-and-membrane assembly; include the pan's product sheet with the permit application to speed approval. The attic duct must be abandoned or relocated; the building official will require photo evidence that the old duct is capped or removed. Total cost is $18,000–$25,000 (materials, labor, permits, and inspections combined). Timeline is 5–8 weeks from permit submission to final sign-off. This scenario showcases Roy's strict waterproofing and exhaust-fan venting requirements, which are common pain points in the Wasatch Front due to humidity and snow-melt moisture.

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Waterproofing and the 'cement board plus membrane' standard in Roy

Roy's building code official enforces IRC R702.4.2 strictly: bathroom showers and tubs must be enclosed with a vapor-permeable substrate (cement board is the standard; some building officials will accept Schluter-systems or equivalent closed-cell foam boards) covered by a water-resistive fabric membrane applied to all seams, corners, and penetrations. Drywall plus silicone caulk is not compliant; many homeowners and even some contractors assume it is, which causes permit rejections and costly re-dos. The city's stance reflects the Wasatch Front's high humidity (snow melt, spring runoff, and seasonal moisture from nearby reservoirs) and the historical prevalence of hidden mold in bathrooms. If you specify a prefabricated shower unit (acrylic pan with fiberglass surround), the manufacturer's waterproofing design satisfies the code, and you're exempt from the cement-board-plus-membrane requirement—but you must provide the product specification sheet to the building official at plan-review time.

The membrane itself must be applied continuously and mechanically fastened or adhesive-bonded; stapling alone is not permitted. Seams must overlap by at least 4 inches and be sealed with silicone or the manufacturer's recommended sealant. Penetrations (drain, vent, supply lines) must be flashed with the membrane before the final tile or surround is installed. The building official will require a post-drywall inspection before you close up the wall; they'll visually verify the membrane coverage and ask for photo documentation if they can't see the entire assembly. If you skip this step and the inspector finds drywall behind the tile during final inspection, you'll be forced to open the wall, install cement board and membrane, and re-inspect—this easily adds $3,000–$5,000 and 4–6 weeks to the project.

A common error in Roy is using a standard cement board (non-waterproofed) without a fabric membrane, assuming the board itself is waterproof; it's not. Cement board is water-resistant, not waterproof. The membrane is the waterproofing layer; the cement board is the substrate. If your application shows cement board but no membrane detail, the building official will request clarification or rejection during plan review. The cost to add membrane (labor and material) is roughly $800–$1,500 for a typical 5-by-8 bathroom; it's much cheaper to get it right during plan review than to tear out tile after final inspection.

Exhaust-fan ductwork and attic-venting violations in the Wasatch Front

IRC M1505 requires bathroom exhaust fans to duct air directly to the exterior; in Roy, this means venting through the roof or a soffit, not into the attic or crawlspace. Venting into the attic is a code violation and creates a moisture trap: warm, humid bathroom air condenses in the attic, causing mold, wood rot, and insulation failure. Many homes built before 2010 in Roy have attic-vented exhaust fans because the code was less strictly enforced; when you're permitted to upgrade, the building official will flag the old duct and require it to be capped or relocated to a roof or soffit termination. This is a non-negotiable inspection item.

The duct itself must be rigid or semi-rigid (flexible ductwork is permitted but is a fire hazard if kinked and creates a noise path); the run should be as short as possible to avoid friction loss and condensation. The duct termination must be on the roof (with a roof boot and damper) or through a soffit (with a damper hood); it cannot be hidden inside a soffit box or terminated under an eave. The building inspector will climb on the roof during final inspection to verify the duct exits correctly. If you live in a snow zone (Roy's elevation is 4,500–5,500 feet), the roof termination must be above the snow line and positioned so melting snow doesn't block the damper; some inspectors will require a snow-hood if the termination is low. Budget $800–$1,500 for a new duct run, including material and labor; if the attic vent is discovered during inspection and requires relocation, add 2–3 weeks to your timeline and $2,000–$3,000 to your cost.

A humidity sensor or timer is required on the exhaust fan per IRC M1505.2; continuous-run (24/7) fans are not permitted unless paired with a humidity sensor that automatically shuts them off when moisture levels drop. The building official will verify the fan circuit and sensor type on the electrical plan before rough-electrical inspection. If you're installing a high-efficiency fan (Energy Star rated), the city will often waive the sensor requirement if the fan draws less than 1.0 sones (noise rating); however, Roy's current interpretation (as of 2024) still expects a sensor or timer on most installations—call the building department to confirm the latest guidance.

City of Roy Building Department
Roy City Hall, Roy, Utah (contact city hall for exact building division address)
Phone: Contact Roy City Hall main line and ask for Building Permits | Roy online permit portal (https://www.cityofroy.com or search 'Roy UT building permits' for current link)
Monday–Friday, 8:00 AM–5:00 PM (verify locally before visiting)

Common questions

Do I need a permit if I'm just replacing a toilet or faucet in the same location?

No. Replacing a toilet, faucet, or cartridge in place without moving any supply or drain lines does not require a permit in Roy. However, if you discover a plumbing problem (leak, corroded pipe) while replacing the fixture and you decide to repair or replace the line, that repair work may trigger a permit requirement. If you're unsure, call the Roy Building Department and describe the scope; they'll confirm whether a permit is needed.

Can I pull a bathroom-remodel permit myself, or do I have to hire a contractor?

You can pull the permit yourself if you're the owner and it's your primary residence (owner-builder exemption in Utah). You'll submit the application and drawings through Roy's online portal, attend plan-review meetings if needed, and schedule and pass all inspections. Many homeowners hire a contractor to manage the permit and inspections because it's less hassle; contractors are required to carry a Utah Division of Construction Services license and will handle the paperwork. The permit fee is the same either way; you save the contractor's markup if you pull it yourself, but you're responsible for code compliance and inspection coordination.

What if my bathroom is in a flood zone or near the Wasatch Fault?

Roy has multiple flood-zone overlays (check the city's zoning map) and sits in Wasatch Fault seismic zone 4. If your bathroom is in a flood zone, the city may require additional review or elevation certificates if you're relocating fixtures or adding elevation-dependent utilities. Seismic zone 4 primarily affects framing anchoring and bracing; your bathroom remodel won't significantly change seismic compliance, but the building official may cross-check that any new walls meet bracing standards. Call the Roy Building Department and provide your address; they'll confirm if you're in a special zone and what extra steps may apply.

How long does plan review take in Roy?

Typical plan review for a bathroom remodel takes 2–5 weeks in Roy, depending on the complexity and whether the plan has deficiencies that require resubmission. Simple cosmetic permits (fixtures in place) might be approved in 1 week; full gut-and-relocate projects can take 4–5 weeks. The city processes permits sequentially, not in parallel; there's no expedited track for residential projects. Once approved, you can schedule rough-inspection appointments within 5–7 days.

What's the cost of a full bathroom-remodel permit in Roy, including all inspections?

Permit fees run $250–$600 depending on declared project valuation (typically 1.5–2.5% of the total remodel cost). Inspections are $75–$150 each; most bathroom remodels require 3–4 inspections, totaling $300–$600 in inspection fees. Total city cost is roughly $550–$1,200. This doesn't include contractor labor, materials, or plan-drawing services; it's only the permitting and city fees.

If I'm converting a tub to a shower, do I need a different permit than a standard remodel?

Not a different permit type, but the scope triggers a full permit (not an exemption). Tub-to-shower conversions require a waterproofing assembly change and must be inspected at the post-drywall phase to verify the cement-board-and-membrane assembly is correct. If you're only reglazing or refinishing the existing tub, no permit is needed; if you're removing the tub and installing a shower, a permit is required.

Can I do the work myself, or do I need to hire a licensed plumber and electrician?

Utah law requires plumbing work to be done by a licensed plumber or homeowner on their own primary residence (owner-builder exemption). Electrical work can be done by a licensed electrician or homeowner (with the same owner-occupancy restriction). Roy's building department will verify licensing during inspections; if you do the work yourself as the owner, you must be present at inspections to walk the building official through the installation. Many homeowners hire licensed trades to avoid liability; the cost is higher but compliance is assured.

What's the most common reason bathroom-remodel permits get rejected in Roy?

Missing waterproofing details (cement board and membrane not specified), missing exhaust-fan duct termination (often venting into attic instead of exterior), and incomplete electrical plans (GFCI outlets not shown, or 20-amp fan circuit not documented). Submit a detailed plan with all three components clearly labeled to avoid rejection. If you're unsure about the plan format, ask the building department for a sample bathroom-remodel permit application.

If the bathroom remodel takes longer than expected, do I lose my permit?

Permits are typically valid for 6–12 months from issuance (check Roy's current permit validity rules). If your project extends beyond the permit expiration, you can request an extension or renew the permit; extensions are usually granted if work is actively ongoing. If the permit expires and work hasn't started, you'll need to pull a new permit, which will require a fresh plan review.

What happens after I pass final inspection? Do I get a Certificate of Occupancy?

Residential bathroom remodels don't require a Certificate of Occupancy (that's for new buildings or major commercial projects). Once you pass final inspection, the building official will sign off the permit, and the work is complete. You'll receive a final inspection report documenting that all code requirements were met. Keep this report for your records; you'll need it if you ever sell the home (to prove the work was permitted and inspected) or if you file an insurance claim related to the bathroom.

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 Roy Building Department before starting your project.