Room Addition 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.
When you DON'T need a permit
TN (Union County), additions of 30 square feet or less of interior space are exempt from Tennessee statewide building permit requirements.
Source: Tennessee State Building Codes / TCA 68-120-101
When you DO need a permit
TN (Union County), additions over 30 square feet of interior space require a building permit under Tennessee state law. Electrical permits are required statewide. Permits must be purchased in person at the Union County Assessor of Property office.
Source: Tennessee State Building Codes / TCA 68-120-101 — additions over 30 sq ft
Room Addition Permit Costs: Maynardville vs. Nearby
| City | Estimated Fee |
|---|---|
| Maynardville | — |
| Nashville | $300 – $1,000 |
| Nashville | $500 – $3,000 |
| Nashville | $800 – $5,000 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation.
Zoning Considerations
Room additions typically require zoning review for setbacks, height limits, and lot coverage. Your addition must comply with your zoning district's building envelope requirements.
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Frequently Asked Questions
Contact Maynardville's building department for current Room Addition permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Room Addition 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 Room Addition Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Room Addition Guide →