HVAC Replacement permit in Johnson City, TN
Yes — you need a permit for hvac replacement work in Johnson City.
Replacing an air conditioner, furnace, or heat pump needs a permit. The state mechanical exemptions only cover portable heaters, portable coolers, portable ventilation units, and small self-contained refrigeration, so a whole-house system is not exempt. Emergency swaps still need a permit application the next day.
| Permit needed? | Yes |
|---|---|
| Where the line falls | Replacing an air conditioner, furnace, or heat pump needs… |
| Fee | The Board of Commissioners may set a permit fee schedule (Sec. 16.4); no dollar amounts appear in the code. |
| Review time | Not in the ordinance |
| Code section | IRC R105.2 / R105.2.1 |
| Based on | IRC 2018 as adopted statewide in Tennessee |
How to pull the permit
- Put together a site plan showing where the work goes, with dimensions.
- Apply through the Johnson City building department.
- Pay the permit fee when the permit is issued. Work done before that isn't covered.
- Book each inspection listed on the permit as the job reaches that stage.
If you skip it
Doing work without the required permit violates the code. Each violation is a misdemeanor, and every day it continues counts as a separate offense (Sec. 16.6).
Nearby cities, same job
Rules stop at the city line. If your lot is near a boundary, or you work across several towns, this is where they differ.
| City | Distance | Permit? | Where the line falls |
|---|---|---|---|
| Johnson City | — | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| Knoxville | 91 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| Farragut | 105 mi | Yes | No size threshold in the code |
| Chattanooga | 183 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| Gallatin | 227 mi | Yes | No size threshold in the code |
| Murfreesboro | 228 mi | No | Replacing like package or split HVAC equipment that is pe… |
Other work in Johnson City
Questions people ask
How much does a hvac replacement permit cost in Johnson City?
The Board of Commissioners may set a permit fee schedule (Sec. 16.4); no dollar amounts appear in the code.. Valuation-based fees mean the number depends on what the job is worth, so the department quotes it when you apply.
I already built it without a permit. What now?
Johnson City can issue a stop-work order and require you to apply after the fact, sometimes with an extra fee. Work that was covered up may have to be opened for inspection. Full walkthrough here.
Does unpermitted work cause problems when selling the house?
Often, yes. A buyer's inspector or the title company may flag it, and lenders can balk at financing a home with open or missing permits. What to do about it.