Permit Required? Depends (most plumbing work)
Typical Fee Range $66–$449 Toilet swap $65.55; full remodel about $449 before two 4% surcharges
Fee Method Flat building fee + per-item trade permits

What's Required in San Antonio

  • Tile, vanity cabinets, countertops and paint need no permit.
  • Replacing a toilet, sink, faucet or tub/shower valve needs a plumbing permit.
  • Pulling and resetting the same toilet without replacing parts is exempt.
  • New outlets, lighting or fan wiring need an electrical permit from a licensed electrical contractor.
  • Exhaust fans need a mechanical permit.
  • Homeowners may pull plumbing permits only for their own homestead with a notarized affidavit.
  • Replacing sheetrock or changing walls needs a Residential Repair building permit.
  • Each trade passes its own rough-in and final inspections.

Do you need a permit to remodel a bathroom in San Antonio?

Usually, because almost every bathroom remodel touches plumbing. City Code Section 10-6(e)(1)g exempts tiling, cabinets, counter tops and similar finish work, so new tile, a new vanity cabinet or paint needs nothing. But the plumbing exemption in Section 10-6(e)(5)b is narrow: it covers clearing stoppages, repairing leaks and the removal and reinstallation of water closets only when no valves, pipes or fixtures are replaced or rearranged. Pulling your existing toilet to lay a new floor and setting it back is exempt. Installing a new toilet, sink, faucet or tub/shower valve in the same spot is not; the Development Services Department (DSD) Home Remodeling FAQ says installing faucets, sinks and toilets needs a permit.

How much is a bathroom remodel permit in San Antonio?

DSD's FY 2027 Development Fee Schedule (revised September 2026) prices each trade separately. Plumbing is $57.50 base plus $8.05 per fixture, and the city's plumbing application counts tub/shower valves and replaced water or drain lines as fixtures. Electrical and mechanical permits also start at $57.50. A building permit for wall or sheetrock work is $172.50 (general repair) or $241.50 (full remodel).

  • New toilet in the same spot: $57.50 + $8.05 = $65.55, or $70.79 with the two 4% surcharges.
  • Full gut remodel: building $241.50 + plumbing $81.65 (toilet, lavatory, tub/shower valve) + electrical $61.54 (two outlets at $0.18, two LED fixtures at $1.84) + mechanical $64.69 (one exhaust fan at $7.19) = $449.38, about $485.33 with surcharges.
What you are doingCity filingRule
Retiling, new vanity cabinet, new countertop, paintNoneFinish work (10-6(e)(1)g)
Pulling and resetting the same toilet for new flooringNone10-6(e)(5)b, no fixture replaced
Replacing a toilet, sink, faucet or shower valvePlumbing permit, $57.50 + $8.05 eachLicensed plumber or homesteading owner
Adding a GFCI outlet, lights or fan wiringElectrical permit, $57.50 + itemsLicensed electrician only
Installing an exhaust fanMechanical permit, $57.50 + $7.19DSD Home Remodeling FAQ
Replacing sheetrock or moving a wallBuilding permit, $172.50 or $241.50Residential Repair Permit Application
Converting a closet or adding a bathroom in an additionBuilding + all trade permitsPlan review over 1,000 sq ft

Who can do the work?

DSD's residential permits page says homeowners must use licensed trade contractors for new electrical, plumbing and HVAC work. The one exception is plumbing in your own homestead: City Code Section 10-6(j) lets a homeowner pull a plumbing permit for a homestead where they reside, provided they make the installation themselves without anyone's help, and DSD requires a notarized Plumbing Affidavit for Homeowner's Permit stating the house is not a business or rental property. Otherwise plumbing permits go to a licensed Responsible Master Plumber registered with a company. A homeowner can pull the building permit by attesting to 12 months of ownership after the project.

What gets inspected?

Each permit is inspected on its own record: plumbing rough-in before walls close, electrical rough-in, and finals for each trade, plus a framing inspection if the building permit includes framing. Inspections are free to schedule online on BuildSA (the schedule lists a $3.45 scheduling fee otherwise), and a failed inspection costs $57.50 to re-inspect.

How to Get a Bathroom Remodel Permit in San Antonio

1

Separate finish work from trade work

Tile, paint and cabinets need nothing; list every fixture, circuit, fan and wall change that does.

2

Decide who files plumbing

Use a licensed plumber, or file the plumbing permit yourself for your homestead with a notarized homeowner affidavit.

3

File trade and building permits

Licensed contractors file electrical and mechanical permits on BuildSA; file the Residential Repair application if walls or sheetrock change.

4

Pay the fees

Pay each permit's base and per-item fees plus the two 4% surcharges; online filing avoids the $11.50 convenience fee.

5

Pass rough-in and final inspections

Schedule inspections free online before closing walls, then the finals that close each permit.

Frequently Asked Questions

Yes if you install a new toilet. City Code Section 10-6(e)(5)b exempts only removing and reinstalling a water closet without replacing or rearranging valves, pipes or fixtures, and DSD's Home Remodeling FAQ says installing toilets needs a permit. The plumbing permit is $57.50 plus $8.05 per fixture, so $65.55 before surcharges.
Permits are priced by trade under the FY 2027 fee schedule. A single fixture swap is $65.55. A full remodel with a $241.50 building permit, three plumbing fixtures, basic electrical and an exhaust fan comes to about $449, or about $485 with the two 4% surcharges.
Tiling by itself is exempt finish work under City Code Section 10-6(e)(1)g. If the job replaces the shower valve or drain lines, that is plumbing fixture work that needs a plumbing permit, and replacing the wall board rather than patching it can need a Residential Repair building permit.
Only in the homestead you live in, and only if you do the installation yourself without help from anyone. You file the plumbing application with a notarized Plumbing Affidavit for Homeowner's Permit, and a city plumbing inspector inspects the work. Rental and business properties are excluded.
Yes. DSD's Home Remodeling FAQ lists exhaust fans with HVAC equipment as work that needs a mechanical permit. Under the FY 2027 schedule that is the $57.50 mechanical base fee plus $7.19 for the fan, with an electrical permit for any new wiring to it.