How to Get a Bathroom Remodel Permit in Knoxville, TN (2026 Guide)
Everything you need to know about bathroom remodel permits in Knoxville, TN, local requirements, fees, timelines, and how to apply.
By Joey, Founder · Last updated May 23, 2026 · How we research →
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Free Permit Lookup →Do You Need a Bathroom Remodel Permit in Knoxville?
Based on Knoxville's local building codes, you'll need a permit when:
Replacing plumbing fixtures (toilet, sink, tub) typically requires a plumbing permit.
Bathroom remodels that move or add plumbing require building and plumbing permits.
Adding a new bathroom requires building, plumbing, and electrical permits.
Permit Fees in Knoxville
Based on local Knoxville permit data, fees for bathroom remodel projects typically range:
Here's how fees break down by project scope nationally:
| Project Scope | Typical Permit Fee |
|---|---|
| Cosmetic remodel (fixtures stay in place) | Usually exempt |
| Plumbing permit (moving or adding fixtures) | $50 – $500 |
| Electrical permit (new circuits or wiring) | $40 – $500 |
| Building permit (structural changes) | $100 – $500 |
| Full gut remodel (multiple trade permits combined) | $400 – $1,500+ |
| Adding a new bathroom | $500 – $2,000+ |
Fees are typically calculated based on estimated project value. Contact Plans Review & Inspections Division for exact amounts.
How Long Does It Take?
In Knoxville, typical approval time for bathroom remodel permits is about 1 week.
More complex projects requiring structural review or variances may take longer. Simple projects may qualify for expedited or over-the-counter review in some cases.
How to Apply for a Bathroom Remodel Permit in Knoxville
- 1 Check requirements: Use our free lookup tool or contact Plans Review & Inspections Division to confirm your project needs a permit.
- 2 Gather documents: Prepare your application, site plan, construction drawings, and any other required documents.
- 3 Submit online: Knoxville accepts applications online at Plans Review & Inspections Division.
- 4 Pay fees: Pay the applicable permit fees ($50 – $1,000).
- 5 Wait for approval: Your application will be reviewed by Knoxville plan reviewers. Typical turnaround is about 1 week.
- 6 Begin work: Once approved, post your permit visibly at the job site before starting work.
- 7 Schedule inspections: Call Plans Review & Inspections Division at (865) 215-4311 to schedule required inspections at each phase of the project.
Knoxville Building Department Contact
Required Inspections in Knoxville
Most bathroom remodel projects in Knoxville require inspections at each construction stage:
Rough-In Plumbing Inspection, Drain pipe routing, sizing, and slope (1/4 inch per foot for pipes under 3 inches), supply line routing and pipe sizes, trap-to-vent distances per IRC Table P3105.1, proper pipe support and hangers, and pipes are typically pressure-tested for leaks.
Shower Pan / Waterproofing Inspection, Continuous waterproof membrane properly installed, liner turned up walls at least 2 inches above curb height, drain connection sealed, and a flood test, pan filled with 2 inches of water and held for 15 minutes minimum with no leaking (IRC P2709).
Rough-In Electrical Inspection, Wire gauge appropriate for circuit amperage, circuit routing and box placement, GFCI protection planned for all bathroom receptacles, dedicated 20-amp bathroom circuit, exhaust fan wiring and switch, and wet-location-rated fixtures in shower/tub areas.
Final Inspection, All fixtures installed and functioning, GFCI outlets tested, exhaust fan operational and vented to exterior, plumbing tested with no leaks, proper clearances (21 inches minimum in front of toilet and sink, 24 inches in front of shower entry), minimum 80-inch ceiling height in front of fixtures, and overall compliance with approved plans.
Schedule inspections with Plans Review & Inspections Division at (865) 215-4311 at least 24–48 hours in advance.
Frequently Asked Questions
Whether you need a permit depends on the size and scope of your bathroom remodel project. In Knoxville, some smaller projects are exempt while larger ones require a permit. Use our free lookup tool to check your specific situation.
Permit fees for bathroom remodel projects in Knoxville typically range from $50 – $1,000. Fees are usually based on the estimated project value.
Typical approval time in Knoxville is about 1 week. Complex projects requiring structural review may take longer.
In most cases, homeowners in Knoxville can pull permits and perform work on their own primary residence as an owner-builder. You're still responsible for meeting all code requirements and passing inspections.
Working without a required permit in Knoxville can result in fines, stop-work orders, required removal of completed work, and complications when selling your home.
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Free Permit Lookup →Other Permit Guides for Knoxville, TN
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See Detailed Bathroom Remodel Rules for Knoxville
View all local rules, exemptions, and fee details on the permit page.
Bathroom Remodel Permit Rules →