What happens if you skip the permit (and you needed one)
- Stop-work orders carry fines of $500–$1,500 per day in Roy and can force removal of unpermitted work; your contractor's license (if applicable) may be flagged with the Utah Division of Occupational and Professional Licensing.
- Insurance denials: homeowner's insurance will not cover damage from unpermitted electrical or plumbing work, leaving you liable for mold, flooding, or electrical fires—claims often exceed $50,000.
- Resale disclosure: Utah requires sellers to disclose unpermitted work on the Transfer Disclosure Statement; buyers routinely demand $10,000–$30,000 price reductions or walk away entirely.
- Mortgage/refinance blocking: lenders in Utah will not refinance or fund purchase if title search reveals unpermitted bathroom work; you'll be stuck until it's permitted retroactively (if the city allows it) or corrected.
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
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.
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.
More permit guides
National guides for the most-asked homeowner permit projects. Each goes deep on code thresholds, common rejections, fees, and timeline.
Roof Replacement
Layer count, deck inspection, ice dam protection, hurricane straps.
Deck
Attached vs freestanding, footings, frost depth, ledger, height/area thresholds.
Kitchen Remodel
Plumbing, electrical, gas line, ventilation, structural changes.
Solar Panels
Structural review, electrical interconnection, fire setbacks, AHJ approval.
Fence
Height/material limits, sight triangles, pool barriers, setbacks.
HVAC
Equipment changeouts, ductwork, combustion air, ventilation, IMC sections.
Bathroom Remodel
Plumbing rough-in, ventilation, electrical (GFCI/AFCI), waterproofing.
Electrical Work
Subpermits, NEC sections, panel upgrades, GFCI/AFCI, who can pull.
Basement Finishing
Egress, ceiling height, electrical, moisture barriers, occupancy rules.
Room Addition
Foundation, footings, framing, electrical/plumbing extensions, structural.
Accessory Dwelling Units (ADU)
When permits are required, code thresholds, JADU vs ADU, electrical/plumbing/parking rules.
New Windows
Egress, header sizing, structural cuts, fire-rating, energy code.
Heat Pump
Electrical capacity, refrigerant handling, condensate, IECC compliance.
Hurricane Retrofit
Roof straps, garage door bracing, opening protection, FL OIR product approval.
Pool
Barriers, alarms, electrical bonding, plumbing, separation distances.
Fireplace & Wood Stove
Hearth, clearances, chimney, gas line work, NFPA 211.
Sump Pump
Discharge location, electrical, backup options, plumbing tie-in.
Mini-Split
Refrigerant lines, condensate, electrical disconnect, line set sleeve.