Do I need a permit for hvac replacement or installation in Unincorporated Franklin County?
Unincorporated Franklin County does not issue residential building permits. The county has passed a resolution opting out of the state residential building program, so no county or state residential building permit is required in the unincorporated county. Per the Tennessee State Fire Marshal's Office, an owner can still voluntarily request a state building permit and inspections (and a certificate of occupancy) via https://www.tn.gov/commerce/fire/residential-permits.html ; inspection questions 615-741-7170. Electrical work is still covered by state electrical permit rules.
The requirements below come from Tennessee rules and describe the standard the work must still meet. They are not a statement that Unincorporated Franklin County will issue you a permit.
Yes. In Tennessee, hvac replacement or installation generally requires a permit, and Unincorporated Franklin County is no exception.
Replacing a furnace, air handler, or condenser (a change-out) generally requires a mechanical permit; new gas or electrical connections may require additional trade permits and inspections. Confirm submittal and inspection details with your local codes department or the state issuing agent, as thresholds and forms differ by jurisdiction.
Get your exact answer
Answer a few questions to see the specific permits, documents, and next steps for your hvac replacement or installation in Unincorporated Franklin County.
Check my projectDocuments you may need
- Mechanical permit applicationRequired
- Equipment specifications (make, model, capacity)Likely required
- Contractor license informationLikely required
Possible inspections
- Mechanical rough-in inspection where ductwork or gas/electrical connections change
- Final mechanical inspection
Frequently asked questions
- Do I need a permit for hvac replacement or installation in Unincorporated Franklin County?
- Yes. In Tennessee, hvac replacement or installation generally requires a permit, and Unincorporated Franklin County is no exception. The documents and inspections sections on this page list what the building department typically asks for.
- Who issues the permit in Unincorporated Franklin County?
- The local building department for Unincorporated Franklin County handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.