HVAC Replacement permit in Largo, FL
Yes — you need a permit for hvac replacement work in Largo.
Replacing an air conditioner, furnace, or heat pump needs a mechanical permit. Only portable units and minor part swaps that do not change the equipment's approval are exempt. The city adopts the Florida Building Code, Mechanical by reference.
| Permit needed? | Yes |
|---|---|
| Where the line falls | Replacing an air conditioner, furnace, or heat pump needs… |
| Fee | Not in the ordinance — the department quotes it |
| Review time | Not in the ordinance |
| Code section | FBC 105.2 |
| Based on | Florida Building Code 2023 |
How to pull the permit
- Put together a site plan showing where the work goes, with dimensions.
- Apply through the Largo 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
Largo's code doesn't set a specific fine for this work. In practice the department can issue a stop-work order, and unpermitted work tends to surface during a sale, when the buyer's inspector or the title company asks for it.
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 |
|---|---|---|---|
| Largo | — | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| Clearwater | 5 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
| St. Petersburg | 13 mi | Yes | No size threshold in the code |
| Tampa | 18 mi | Yes | You need a mechanical permit to replace an air conditione… |
| Lakeland | 51 mi | Yes | Replacing a whole air conditioner, furnace, or heat pump … |
| North Port | 69 mi | Yes | Replacing an air conditioner, furnace, or heat pump needs… |
Other work in Largo
Questions people ask
I already built it without a permit. What now?
Largo 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.