Plumbing Work Permit Requirements in Maynardville, TN

Union County is EXEMPT on the TN State Fire Marshal's residential jurisdictions list, meaning it enforces building codes locally. Building permits must be purchased in person at the Assessor of Property office — no online portal. Fee schedule not published online; call (865) 992-3211 for current fees. Tennessee state electrical permits required separately (inspector: Eric Ramsey, (423) 626-0724). Contractor licensing: TN statewide $25,000+ threshold; no HIC requirement in Union County.

Population: 2,568 Code: 2018 Verified: 2026-04-07 3 local rules

When you DON'T need a permit

TN (Union County), replacing a plumbing fixture (faucet, toilet, water heater) in the same location generally does not require a permit for existing homes. Renovations of existing dwellings are excluded from Tennessee statewide building standards.

Source: Tennessee State Building Codes / TCA 68-120-101 — existing dwelling renovations excluded

When you DO need a permit

TN (Union County), running new plumbing lines or relocating existing plumbing may require a permit. Contact the Union County Assessor of Property at (865) 992-3211 to confirm requirements.

Source: Tennessee State Building Codes / 2018 IRC — Union County local enforcement

TN (Union County), sewer or water line work requires a permit. Septic system work requires a separate permit from the Tennessee Department of Environment and Conservation, Knoxville Field Office.

Source: Tennessee State Building Codes / 2018 IRC — Union County local enforcement

Plumbing Work Permit Costs: Maynardville vs. Nearby

CityEstimated Fee
Maynardville
Nashville $75 – $250
Nashville $50 – $150
Nashville $150 – $600

Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation.

Check your specific project

Answer a few quick questions to get a personalized answer for your exact project.

Check Now — Free →

Building Department Contact

NameUnion County Assessor of Property
Address901 Main Street, Suite 106, Maynardville, TN 37807
HoursMon-Fri 8am-4pm

Frequently Asked Questions

Contact Maynardville's building department for current Plumbing Work permit fee information. Fees typically vary based on project scope and valuation.

It depends on the specifics of your project. Some smaller Plumbing Work projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.

Working without a required permit in Maynardville can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.

Contact Maynardville's building department for current processing times. Timelines vary based on project complexity and whether plan review is required.

Learn More About Plumbing Work Permits

Read our complete guide covering permit requirements, costs, common exemptions, and the application process.

Read Plumbing Work Guide →

Estimate your permit fees →

Disclaimer: This information was last verified on 2026-04-07. Building permit requirements may change. Zoning requirements (setbacks, lot coverage, height limits) are separate and vary by location. Always confirm with your local building and planning departments before starting your project. PermitMint provides general guidance, not legal advice.