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Do I need a permit for plumbing fixture or repiping in Unincorporated Miami-Dade County?

Permit required

Yes. In Florida, plumbing fixture or repiping generally requires a permit, and Unincorporated Miami-Dade County is no exception.

Repiping, meaning replacing supply, drain, waste, or vent piping, requires a plumbing permit in Florida. A straightforward like-for-like replacement of a faucet, sink, or toilet, and clearing stoppages or fixing leaks, is generally exempt as long as no pipe or valve is moved or replaced. As soon as concealed pipe must be removed and replaced, it is treated as new work that needs a permit.

Local detail for Unincorporated Miami-Dade County: Permits for unincorporated Miami-Dade County are handled by the county RER Building Division. Additional RER office at Stephen P. Clark Center, 111 NW 1st Street, 11th Floor, Miami, FL 33128 (305-375-2877).

Florida and local notes for Unincorporated Miami-Dade County

Every address in this county sits inside the Florida Building Code High Velocity Hurricane Zone, the strictest wind construction standard in the state, so materials and methods face requirements that do not apply elsewhere in Florida. Your city issues the permit, not the county. Miami-Dade County's own building department serves the unincorporated area, while each municipality runs its own building department, and the county Board of Rules and Appeals interprets the code across all of them. Once a concealed drain, water, soil, waste, or vent pipe must be removed and replaced with new material, the county treats it as new work needing a permit and inspection. Licensed plumbers may do repairs up to $500 without one. A sanitary line replacement requires agreeing to the county's standard slab cut repair detail, and a Special Inspector Form covers the trench backfill and slab repair. Plumbing always needs a permit under the county's HB 803 rules, regardless of project value.

Documents you may need

  • Plumbing permit applicationLikely required
  • Contractor license and insuranceLikely required
  • Riser or isometric diagram or scope descriptionSometimes required
  • Product approval or Notice of Acceptance documentation for HVHZ rated materialsSometimes required
  • Building Permit Application with the plumbing category and Plumbing Fee SheetLikely required
  • Sanitary Line Replacement standard slab cut repair detail and Special Inspector Form (Category 25)Sometimes required

Possible inspections

  • Rough plumbing inspection
  • Final inspection
  • Rough plumbing inspection before walls are closed
  • Pressure test
  • Plumbing final inspection

Frequently asked questions

Do I need a permit for plumbing fixture or repiping in Unincorporated Miami-Dade County?
Yes. In Florida, plumbing fixture or repiping generally requires a permit, and Unincorporated Miami-Dade 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 Miami-Dade County?
The local building department for Unincorporated Miami-Dade 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.