Retaining Wall 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.
By Joey, Founder · Last verified April 7, 2026 · How we research →
When you don’t need a Retaining Wall permit in Maynardville
TN (Union County), retaining walls 4 feet or less in height (measured from bottom of footing to top of wall) generally do not require a building permit under IRC.
When you need a Retaining Wall permit in Maynardville
TN (Union County), retaining walls over 4 feet require a building permit and engineered design. Permits must be purchased in person at the Union County Assessor of Property office.
Retaining Wall Permit Costs: Maynardville vs. Nearby
| City | Estimated Fee |
|---|---|
| Maynardville | N/A |
| Nashville | $150 – $600 |
| Memphis | $150 – $600 |
| Knoxville | $150 – $600 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Maynardville permit costs →
Zoning Considerations
Retaining walls near property lines may require zoning setback review. Walls that significantly change the grade of a property may need additional zoning approval.
Estimated Project Timeline in Maynardville
Here's a typical timeline for a retaining wall project in Maynardville, TN:
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Frequently Asked Questions
Contact Maynardville's building department for current Retaining Wall permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Retaining Wall 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 Retaining Wall Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Retaining Wall Guide →