Do I Need a Permit to Remodel My Bathroom in Miami-Dade?

When a permit is usually required

Bathroom renovations across Miami-Dade typically require permits whenever plumbing lines are altered, electrical is added, or waterproofing behind tile is affected. The list below covers the scope combinations we most often see trigger permit filings.

• Moving or adding plumbing fixtures — relocating a toilet, adding a second sink, moving the shower or tub.
• Adding or altering electrical — new outlets (including GFCI locations), lighting, exhaust fans, heated flooring, mirror lighting.
• New or modified exhaust ventilation ducted to the exterior.
• Structural changes — removing walls, expanding the bathroom footprint, or converting a closet into a bathroom.
• Full gut renovation involving demolition down to studs and new waterproofing.
• Installing a new tub or shower pan that changes drain location or requires new waterproofing.
• Any work on the ceiling that opens up floor framing on the level above.

When a permit may not be required

Some cosmetic bathroom refreshes fall outside permit requirements in most Miami-Dade jurisdictions. Local variations still apply, and condo associations often require internal approval regardless.

• Painting, wallpapering, or re-caulking.
• Replacing a toilet, vanity, or faucet with a like-for-like model at the same location.
• Installing a new mirror, medicine cabinet, or towel bars.
• Replacing an exhaust fan with a like-for-like model on the existing duct and circuit.
• Regrouting tile without removing waterproofing.

Miami-Dade / South Florida considerations

Bathroom remodels are one of the most common permit types in South Florida, and jurisdictions have refined their review process accordingly. Several local considerations affect timelines.

• Waterproofing details are commonly reviewed in Miami-Dade — plans should show the membrane type, floor slope, and curb detail.
• Sub-permits — plumbing, electrical, and mechanical each require separate filing under the master permit.
• High-rise condo units in Brickell, Aventura, and Sunny Isles Beach almost always require association approval, riser diagrams, and often a plumbing pressure test.
• Ground-floor bathrooms in older Miami Beach homes may need floor-slab investigation before drain relocation is approved.
• Historic homes in Coral Gables or Miami Shores sometimes require Historic Preservation Board review if bathrooms sit on the exterior wall or have original fixtures.

Common mistakes that delay approval

Bathroom remodels tend to be fast projects, which puts pressure on permitting. The most common delays come from filings that are technically valid but incomplete.

• Starting tile demolition before the plumbing sub-permit is issued.
• Omitting the waterproofing detail from drawings.
• Not filing a mechanical sub-permit when exhaust ductwork changes.
• Forgetting condo board approval on high-rise remodels.
• Using a licensed general contractor whose license does not cover plumbing without the correct plumbing sub-contractor.
• Missing riser diagrams for units above the ground floor.

Documents usually needed

Bathroom remodel filings vary by scope, but most Miami-Dade applications include a similar core set of documents.

• Building permit application (Miami-Dade or municipal form).
• Scaled floor plan showing existing vs. proposed fixtures.
• Plumbing riser diagram for multi-story or high-rise units.
• Electrical plan showing GFCI outlets, lighting, and any new circuits.
• Waterproofing detail for shower or tub area.
• Mechanical drawings for any exhaust duct changes.
• Notice of Commencement above the threshold value.
• Condo or HOA approval letter when applicable.
• Contractor license and insurance on file.

How Permit Partners FL can help

Permit Partners FL manages every phase of the bathroom remodel permit — filing the master permit and every trade sub-permit, coordinating riser diagrams for high-rise units, responding to plan reviewer comments, and scheduling the inspections that close out the project cleanly. We work directly with your architect, contractor, and condo association to keep the application moving.