Bathroom Remodel Permits in Florida, Scope by Scope.

The Permit Line in Florida

The permit line in Florida is the difference between maintaining what exists and changing what exists. Under Florida Statute 553.79, non-structural work on a single-family home — floor coverings, paint, cabinet work, decorations — is exempt. The exemption ends the instant the scope touches plumbing, electrical, mechanical, or structure, or sits in a flood hazard area.

A bathroom is the hardest room to call because it packs all four regulated trades — plumbing, electrical, mechanical, and waterproofing — into one small space. That is why the answer to "do I need a permit" is rarely a flat yes or no, and why it has to be decided scope by scope rather than room by room.

Repair versus alteration, the way the code reads it

The FBC classifies the work itself, not your intentions. The Existing Building code separates a repair from an alteration, and that single distinction decides most bathroom permits before any fixture is touched.

A repair stays exempt

A repair restores a fixture or surface to sound condition without changing its function or location — resealing a joint, replacing a cracked tile, swapping a leaking faucet for the same model. Repairs and many like-for-like Level 1 alterations ride the 553.79 exemption.

An alteration usually does not

An alteration replaces, reconfigures, or relocates. A like-for-like swap is a Level 1 alteration; moving walls or fixtures is a Level 2 alteration that reconfigures space. Level 2 work, and anything that adds a trade, needs a permit regardless of how cosmetic the finished room looks.

One boundary catches people who try to outsmart it: FS 553.79 forbids splitting one job into smaller pieces to dodge a permit. A bathroom remodel is read as a single project, so a "cosmetic refresh" that quietly relocates the toilet flange is a permitted plumbing alteration, not an exempt cosmetic one.

What Rarely Needs a Permit

A cosmetic bathroom remodel that leaves every building system where it is generally needs no permit in Florida. If you are only refreshing surfaces and reusing the existing rough-in locations, you are usually inside the 553.79 exemption — with the flood-zone exception noted below.

The exempt scopes share one trait

The reliably exempt scopes have a single thing in common: nothing behind the wall changes. They restore or re-cover what is already there, which is exactly what the statute means by non-structural maintenance.

• Paint, wallpaper, and decorative trim — explicitly named non-structural surface finishes.
• Mirrors, towel bars, shelving, and accessories — surface-mounted, no system touched.
• A same-size vanity, sink, or toilet — reset over the existing supply and drain.
• A faucet or showerhead swap — provided no supply line is rerouted.
• Surface tile over a sound, watertight substrate — a finish swap, not a waterproofing rebuild.

Each of these re-covers or replaces in place, which is why the building department treats them as maintenance rather than alteration. The instant one of them reaches behind the wall, it leaves this list.

How the statute defines the exemption

The exempt categories are written into the law, not left to a clerk's discretion, which is what makes them dependable.

Like-for-like fixture

A new toilet, sink, or vanity installed in the exact location of the old one, connected to the existing drain and supply, is a replacement — not a plumbing alteration.

Surface finishes

Paint, wallpaper, mirrors, accessories, and decorative trim are named non-structural under FS 553.79 and are exempt regardless of how the room looks afterward.

Surface tile over sound substrate

Re-tiling a floor or a dry wall over an intact, properly prepared substrate is a finish swap. It stops being exempt the moment it opens shower waterproofing, a plumbing-inspected assembly.

The catch is the flood hazard area. In coastal and low-lying Florida, a jurisdiction can require a permit even for otherwise-exempt work, because flood-zone rules attach to the structure itself. When the parcel sits in a special flood hazard area, verify before assuming the exemption applies.

What Triggers a Permit

Any scope that adds, moves, or alters a building system triggers a permit. In a bathroom that means plumbing relocation, electrical changes, ventilation work, layout changes, and shower waterproofing — each treated by the FBC as inspected work, not finish work.

Plumbing is the most common trigger

Moving a drain, relocating supply lines, adding a second sink, or converting a tub to a shower changes the rough-in, which makes it a permitted plumbing alteration. A shower rebuild that opens the waterproofing belongs here too, because the pan and membrane are an inspected assembly that ends in a flood test.

Electrical is the trigger homeowners underestimate

Permitted electrical scope in a bathroom is broader than most homeowners expect, and any one of these crosses the line on its own.

1. Adding or relocating a receptacle — new outlets or moving an existing one.
2. Moving or adding a light or switch — including a vanity light or a separate fan switch.
3. Wiring a new exhaust fan — a fan circuit is electrical and mechanical at once.
4. Installing a heated floor or a new dedicated circuit — load additions the panel has to carry.

Each item changes the wiring an inspector must verify before the wall closes, so a bathroom that "only" gains a heated floor or a second outlet is squarely permitted electrical work.

GFCI is mandatory near water

Under the NEC 210.8(A), every dwelling bathroom receptacle requires GFCI protection, and any receptacle within 6 ft of the outside edge of a tub or shower is included. The protection comes from a GFCI breaker or the first receptacle on the circuit, a point detailed in our bathroom GFCI code guide.

Ventilation is mechanical work in a humid state

Replacing or relocating an exhaust fan is mechanical work, and Florida humidity makes the spec non-negotiable.

The 50 cfm rule and where the duct ends

The FBC Residential code requires bathroom exhaust of at least 50 cfm intermittent, ducted directly to the outdoors — never into an attic, soffit, or crawl space. The termination must clear building openings by at least 3 ft. We unpack airflow sizing in our bathroom ventilation guide.

Read down the table and the pattern is unmistakable: the exempt rows all reuse what is already in the wall, and every permitted row adds, moves, or rebuilds a system the inspector has to see before it is covered.

The Inspections You Will See

A permitted Florida bathroom remodel is inspected in stages, with the rough-in checks happening before anything is closed up. You cannot cover plumbing, wiring, or a shower pan until each has passed, which is why sequencing matters as much as the work itself.

The order is fixed for a reason

Each inspection gates the work that hides it, so the sequence is not negotiable.

• Framing first — moved walls and blocking are checked while everything is open.
• Rough-in next — plumbing and electrical are verified before insulation or board.
• Waterproofing before tile — the shower pan is flood-tested with the membrane exposed.
• Final last — fixtures, the GFCI receptacle, and the fan are confirmed working.

Skipping or reordering a stage forces a teardown of finished work, which is why a permitted job is paced to the inspector rather than to the calendar.

Why the flood test surprises people

The shower pan flood test is the inspection most cosmetic-minded homeowners never anticipate. It is a plumbing requirement, not a courtesy, and it is the single strongest reason a "simple" shower retile that opens the pan is not exempt — the assembly underneath is permitted, tested work the inspector witnesses before any tile hides it.

The County-by-County Reality

Florida has one building code but many building departments. The FBC is statewide, yet each county and many cities administer it, set their own fees and submittal rules, and may add local amendments — so the same bathroom scope can move faster in one jurisdiction than another.

The HVHZ divide

The sharpest divide is the HVHZ. Miami-Dade and Broward counties enforce high-velocity hurricane provisions and a product-approval regime, where windows, exterior assemblies, and certain materials need a documented approval on file. A bathroom that touches an exterior wall or a window can pull HVHZ requirements that a Hillsborough or Orange County bathroom never sees.

Flood zones add a second layer

Coastal and flood-zone parcels stack another set of rules on top of the trade permits, and they can reach scopes that would otherwise be exempt.

• Substantial-improvement rules — can apply when the project value is high relative to the structure.
• Review of otherwise-exempt finishes — flood-zone parcels can require sign-off even on cosmetic work.
• Elevation and material limits — below base flood elevation, finishes and fixtures may need flood-resistant ratings.

The practical move is to confirm scope with your specific building department before demolition, because what was exempt in your last home may not be at this address. A five-minute call clarifies the local amendment before it becomes a stop-work order.

Who Pulls the Permit

In Florida, a permit is pulled either by the property owner or by a state-licensed or county-registered contractor, and the name on the permit owns the inspections and the liability for the code work. That choice is not a formality — it decides who answers to the inspector and who is on the hook if the rough-in fails.

The owner-builder trap

An owner-builder permit is legal, but it transfers code responsibility, inspection scheduling, and warranty exposure to the homeowner, who must occupy the home and cannot resell it for a set period without disclosure.

What the homeowner takes on

Under an owner-builder permit you become the de facto contractor: you schedule every inspection, you certify the work meets the FBC, and any tradesperson you hire must be separately licensed. For a multi-trade bathroom, that is a meaningful amount of liability to absorb.

Why a contractor permit is cleaner for multi-trade work

When a licensed contractor pulls the permit, the licensed party stays accountable for the rough-in, the flood test, and the closeout as one chain of custody. The inspector has a single responsible name, and the homeowner is not personally certifying plumbing or electrical they did not perform.

How to Pull It Right

The clean path is to classify the scope honestly, then let whoever holds the license pull the permit before demolition. Decide the classification first, because it dictates the plan, the fees, and the inspection chain that follows.

Run the scope down that tree and you will land on one of two outcomes: a documented cosmetic job you can start, or a permitted project that needs a plan and a sequence of inspections. There is no third option where moving a system quietly stays exempt.

Letting the licensed party carry it

For a multi-trade job, having the contractor pull the permit keeps the licensed party accountable for the rough-in and the flood test. We handle that end to end through our permit handling service, and fold it into a single full bathroom remodel so plumbing, electrical, and waterproofing pass as one coordinated project rather than three disconnected ones.