Permit Required? Required
Typical Fee Range $150–$500 Based on work value plus individual trade permit costs.
Fee Method Valuation-based
Apply Online Apply at Building Division →

What's Required in St. Louis

  • Permit required for any plumbing fixture relocation.
  • Plumbing permit for tub or shower replacement.
  • Electrical permit for GFCI circuits and bathroom lighting.
  • Exhaust fan must vent directly to the exterior.
  • Shower pan inspection mandatory before tiling.
  • Tempered glass required for windows near water fixtures.

How to Get a Bathroom Remodel Permit in St. Louis

1

Step 1: Outline Work

Identify if structural or plumbing changes are planned.

2

Step 2: Submit Application

Apply for a residential alteration permit via the portal.

3

Step 3: Rough Inspections

Required for plumbing and electrical before closing walls.

4

Step 4: Waterproofing Check

Inspect the shower membrane and pan for leaks.

5

Step 5: Final Check

Final sign-off of all bathroom fixtures and ventilation.

Frequently Asked Questions

No, if it's in the same location and no piping changes.
Yes, unless you have an operable window meeting code size.
An inspection where the shower floor is filled with water to ensure it's watertight.