Bathroom Remodeling in Austin: 2026 Costs, Slab Drains and Permit Rules

What a bathroom remodel costs in Austin

Our numbers begin with national remodeling cost data and apply the Texas construction cost factor of 0.82, published by the U.S. Army Corps of Engineers. The Corps has no separate Austin entry, so the whole state uses the same factor. The same bathroom costs about 18% less here than the national average.

Estimates for 2026, including labor and standard parts. Austin prices use the Texas statewide construction cost factor of 0.82 (US average = 1.00) from the U.S. Army Corps of Engineers Area Cost Factors, which have no separate Austin entry. Your quote depends on access, materials and the condition of the home.

For your own room size, finish level and ZIP code, use the cost estimator below or open the full bathroom cost estimator.

The same estimator has its own page, easy to share or bookmark: Bathroom remodel cost estimator.

Slab foundations and the price of moving a drain

If the house sits on a concrete slab rather than over a crawl space, a plumber cannot reach a new drain line from below, so moving a toilet or shower means saw-cutting a trench through the finished floor, running the pipe, and patching the concrete. A layout change is the largest single swing in an Austin bathroom budget.

What drives an Austin bathroom budget

Waterproofing and shower rules in Austin

The shower carries more code requirements than any other part of the room.

What the inspector checks in the shower

• Pan: a continuous waterproof pan tied into the drain and flood-tested before any tile goes down.
• Valve: an anti-scald valve that keeps the water temperature steady when someone else opens a tap.
• Glass: tempered or laminated safety glass in shower doors and tub enclosures.
• Walls: smooth, hard, nonabsorbent surfaces behind the tile, to the height the code requires above the drain.
• Exhaust: a fan ducted outside, never into the attic.

Ventilation for a humid Central Texas summer

Austin summers are long, hot and humid. A working exhaust fan matters in that climate. Replacing an exhaust duct run under 15 feet is permit-exempt in Austin, but a new fan on a new circuit is not. If the fan is old or venting into the attic, replace it while the ceiling is open.

Why older Austin showers usually need more than new tile

If the backer behind old tile turns out to be soft once the tile comes off, replacing it and swapping the valve while the wall is open turns a tile job into a permitted remodel, so plan for that before demolition starts.

Water-saving and plumbing rules in Texas

Texas sets its own rules for who may do the plumbing work and what fixtures go in.

The Texas State Board of Plumbing Examiners licenses and regulates plumbers in Texas. A Responsible Master Plumber is authorized to obtain permits for plumbing work, and a Tradesman Plumber-Limited may construct, install, repair, service or renovate plumbing for one and two-family dwellings under the supervision of a Responsible Master Plumber. Most Austin bathroom plumbing crews work under that license level.

The board's Ask Kevin+ chatbot can help you review a contractor's bid before signing and check that completed plumbing work meets code. Its training data includes code amendments for over 300 Texas municipalities. You can also upload photos of completed plumbing work for code-based context. The board encourages homeowners to be careful about counterfeit plumbing products bought from unfamiliar websites or sources priced well below normal market price, and to keep invoices, receipts, packaging and product information for materials used in regulated plumbing installations.

Planning for aging in place

A bathroom remodel is the cheapest time to make the room work for someone with a walker, a bad knee or a wheelchair, because the walls and floor are already open.

Recessing the floor framing for a curbless entry is structural work, so it moves the project from an express permit into plan review. The code also wants a toilet at least 15 inches from its centerline to any side wall or fixture, with a 30-inch-wide space and 24 inches clear in front. In a narrow hall bath, those numbers often decide whether a wider shower fits at all.

Do you need a permit?

In the City of Austin, most real bathroom remodels need a permit, and many qualify for a fast express permit.

Austin's Express Permits page lists bathroom remodels including tub and shower conversions as eligible for a Residential Express Building Permit (Minor Repairs). Only tub, shower and sink surround drywall can be removed. Walls cannot be relocated or removed, and plumbing fixtures cannot be relocated or added. A trade permit may be required depending on the work, and it should be indicated on the application. Most Express Permits are issued within one business day, though timing may differ in a floodplain or historic district. If the work exceeds the express limits, you need a new residential building permit application and fees, and the express fees are not reimbursed.

The city's Work Exempt from Building Permits list says the same. Painting, tiling, cabinets and countertops need no permit, and replacing a faucet or an exposed trap is exempt. A new installation or replacement of a shower, tub, or combination tub and shower is not exempt. A gypsum board repair is exempt only if it does not exceed 128 square feet and is not part of a tub and shower surround.

Fees and the payment portal

Austin's fee schedule for FY 2026-27 took effect October 1, 2026. Residential building plan review and permit fees are published in a separate residential fee schedule. Paying by credit card through the AB+C portal adds a 2.35% service fee with a $2.00 minimum. Paying online by checking account avoids that fee, but a $30 ACH Return Fee applies for insufficient funds. In-person credit card payments are accepted only for amounts under $10,000.

The contractor or homeowner listed on the permit must have an Austin Build + Connect (AB+C) Portal account to pay fees, manage the permit and schedule inspections. A registered General Contractor must be assigned and linked to the building permit, though a homeowner can act as general contractor after registration. An activated permit expires on the 181st day if the project has not been scheduled or received an inspection, and a canceled or failed inspection does not extend that date. After a passing inspection, the expiration date is extended 180 days.

Permits in the rest of the metro

Each city and county in the region runs its own permit counter.

Round Rock also strongly recommends an asbestos survey before removing walls in homes built before 1980. If your Austin-area bathroom is in an older house and the plan calls for cutting into walls, ask about that before demolition.

How long a bathroom remodel takes in Austin

On site, the work follows a fixed order: demolition to the studs, framing repairs and grab bar blocking, rough plumbing, electrical and fan, one rough inspection on a combined permit, backer board and waterproofing with the pan flood test, then tile, fixtures, glass and the final inspection. Glass is measured after the tile is done. If this is the only bathroom in the house, agree with the remodeler on how you will have a working toilet each night.

Areas we cover

GOLDGCP bathroom remodelers work across the Austin metro, including:

• Austin
• Round Rock
• Cedar Park
• Georgetown
• Pflugerville
• Leander
• Westlake

Enter your ZIP code below to see bathroom prices for your area and the remodelers who cover it.