Basement permit in Miami, FL
Yes — you need a permit for basement work in Miami.
You need a building permit to finish a basement or convert it into living space. This is Building work under Sec. 10-1, which covers alteration, enlargement, and change of use and occupancy of a structure. Miami's exempt Building list (Sec. 10-5 / Sec. 10-11) exempts only floor finishes and interior finish work in one- and two-family dwellings; a full finish or conversion adds walls and partitions, alters egress, and pulls in electrical, mechanical, and plumbing work, none of which is exempt. If the property is in a special flood hazard area, the flood-elevation rules of Ch. 20 (Sec. 20-1, 20-3, 20-4) also apply to any floor including a basement.
| Permit needed? | Yes |
|---|---|
| Where the line falls | You need a building permit to finish a basement or conver… |
| Fee | The code names no basement-specific amount. For residential properties of up to three dwelling units, the remodeling/building permit fee is figured from the estimated construction cost, including labor and materials (Sec. 10-18). Current amounts are on the city site at miamigov.com. |
| Review time | 30 days |
| Code section | Sec. 10-5(b); Sec. 10-1 |
| Based on | Florida Building Code 2023, as amended by City of Miami Code ch. 10 |
How to pull the permit
- Put together a site plan showing where the work goes, with dimensions.
- Apply through the Miami 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.
Either of you can pull it. When a contractor does the work, it is normally their job.
If you skip it
If you do the work without the required permit, the city can issue a stop work order and a ticketed fine of up to $500.00 per day plus costs, with possible per-diem and irreparable-harm fines (Sec. 10-131).
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 |
|---|---|---|---|
| Miami | — | Yes | You need a building permit to finish a basement or conver… |
| Miami Beach | 4 mi | Yes | No size threshold in the code |
| Hialeah | 9 mi | Yes | You need a building permit to finish a basement or conver… |
| Doral | 10 mi | Yes | No size threshold in the code |
| Miami Gardens | 12 mi | Yes | No size threshold in the code |
| Miramar | 16 mi | Yes | No size threshold in the code |
Other work in Miami
Questions people ask
How much does a basement permit cost in Miami?
The code names no basement-specific amount. For residential properties of up to three dwelling units, the remodeling/building permit fee is figured from the estimated construction cost, including labor and materials (Sec. 10-18). Current amounts are on the city site at miamigov.com.. 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?
Miami 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.