Short answer: for a typical interior bathroom remodel in The Woodlands on public water and sewer, Montgomery County does not require a building permit. But there are four situations that change that answer — and the covenants are a separate conversation entirely.
I’m Gabe, owner of Marvel Works, and this question comes up on almost every bathroom remodel walkthrough we do in The Woodlands. Homeowners moving here from Houston, Dallas or out of state assume there’s a city permit office they need to visit. There isn’t — and that surprises people. Here’s how it actually works, with links to the official sources so you can verify everything yourself.
Why The Woodlands Is Different: There Is No City Hall
The Woodlands is not an incorporated city. It’s governed by The Woodlands Township, a special-purpose district — which means there is no municipal building department issuing bathroom remodel permits the way the City of Houston or City of Conroe does. For permitting purposes, most of The Woodlands sits in unincorporated Montgomery County. The one exception is the Village of Creekside Park, which sits in Harris County (more on that below).
So the permit question really becomes: what does Montgomery County require?
What Montgomery County Actually Requires for an Interior Remodel
This one you don’t have to take my word for. Montgomery County’s Permitting Department answers it directly in its official permitting FAQ:
- If your home is in the floodplain — contact the county’s Floodplain Administration before doing interior work.
- If your home is on a septic system — contact the county’s Septic Department.
- If your home is on public water and sewer — no county permit is required for an interior remodel.
Since nearly every home in The Woodlands is served by public water and sewer through the local municipal utility districts, most interior bathroom remodels here — new tile, new shower, new vanity, new fixtures in the same footprint — do not require a Montgomery County permit. The county also confirms in the same FAQ that it performs no final inspections on residential construction outside the floodplain.
If you want to confirm anything for your specific property, the Montgomery County Permit Department is at 501 North Thompson, Suite 100, Conroe, TX 77301, phone 936-539-7836.
The Four Situations Where the Answer Changes
1. You’re changing the home’s footprint
The moment your bathroom project becomes an addition — bumping out a wall, adding a new bathroom under a new roofline — it stops being an interior remodel. Montgomery County requires a Development Permit for development in unincorporated areas, and the county is explicit that every structure or addition (defined as anything with a roof and at least one wall) requires its own permit. If a master bath addition is on your list, see our room additions page and the room addition cost guide — and expect real permitting.
2. Your home is in or near the floodplain
A permit is required for any development or work within the 100-year floodplain, and homes in or within 100 feet of a Special Flood Hazard Area have additional elevation documentation requirements. Sections of The Woodlands back up to Spring Creek and Panther Branch, so this is worth a five-minute check with Floodplain Administration before you demo anything.
3. You’re on septic
Rare inside The Woodlands proper, but common in nearby Magnolia, Montgomery and parts of Conroe. Adding a bathroom to a home on septic brings the county’s septic (OSSF) program into the picture — your system has to be verified for the added load. Call the county before you plan a new bathroom on septic.
4. You live in Creekside Park
Creekside Park is the only Woodlands village in Harris County, and Harris County runs its own permitting through the County Engineer’s office. Per the Harris County Engineering permits FAQ, a permit is needed for all “development” in unincorporated Harris County — broadly defined as man-made changes to real estate. Whether your specific interior-only scope needs one is worth a call to their residential permits line at 713-274-3920 before work starts.
No Permit Does Not Mean No Rules: Licensed Trades Still Apply
Here’s the part some cut-rate operators conveniently skip: Texas licenses plumbers at the state level through the Texas State Board of Plumbing Examiners, and electricians through the Texas Department of Licensing and Regulation. That’s state law — it doesn’t disappear just because the county doesn’t require a remodel permit. When we move a drain line or add a circuit for a heated floor, licensed tradespeople do that work. Ask any contractor you interview who is pulling their plumbing and electrical, and ask for license numbers.
What About the HOA Covenants?
Separate question, separate authority. The Woodlands Township’s Covenant Administration Department enforces the deed restrictions, and each village’s Residential Design Review Committee (RDRC) reviews home improvement applications. The projects the Township lists as needing approval are things like room additions, major remodeling, patio covers, pools and exterior changes — so if your bathroom remodel touches the exterior at all (a new window in the shower wall, a vent through a visible roofline, an addition), plan on a covenant application through the Township’s online portal before construction.
A purely cosmetic interior update is generally not what the covenants are aimed at, but requirements can be nuanced — when in doubt, call Covenant Administration at 281-210-3800 and ask. It’s a quick call that can save you real headaches. We walk through how the whole approval process works in our Woodlands HOA requirements guide.
Who Pulls the Permit When One Is Needed?
When a project does require a county development permit or a Township covenant application, your contractor should handle the paperwork — or at minimum prepare it with you. At Marvel Works we prepare and submit the applications for our projects because we’d rather spend a week on paperwork than have a client get a compliance letter. If a contractor asks you to figure out the permits for a project that clearly needs them, that tells you something.
Quick Contrast: Inside Houston City Limits
If you own property inside the City of Houston, the rules are completely different — the Houston Permitting Center issues residential remodel permits, and remodels involving plumbing, electrical or structural work require them, with inspections. It’s one of the practical differences between remodeling in The Woodlands and remodeling inside the Loop.
Ready to Talk About Your Bathroom?
Marvel Works is an owner-operated remodeling company based right here in the north Houston area. We handle bathroom remodels, wet room conversions and everything down to handyman-level repairs — and we deal with the county and Township paperwork so you don’t have to.
Call or text Gabe at 832-390-8685 for a free estimate, or request a quote online. Budgeting first? Start with our bathroom remodel cost guide.
Frequently Asked Questions
Do I need a permit to retile my shower or replace a tub in The Woodlands?
No county permit is required for interior remodeling if your home is on public water and sewer and outside the floodplain, per Montgomery County’s permitting FAQ. Plumbing work should still be performed by a state-licensed plumber.
Do I need a permit to move plumbing inside my bathroom?
Montgomery County’s interior remodel guidance doesn’t distinguish between fixture swaps and relocations — the triggers are floodplain, septic, or footprint changes. The work itself must be done by a licensed plumber under Texas law, and if you’re in Creekside Park, confirm with Harris County first.
Who issues building permits in The Woodlands?
There’s no city permit office. Montgomery County’s Permit Department (936-539-7836) covers most of The Woodlands for development permits; Harris County (713-274-3920) covers Creekside Park. The Woodlands Township’s Covenant Administration (281-210-3800) handles deed restriction approvals — a separate process from county permitting.
Does the HOA need to approve an interior bathroom remodel?
The covenant review process is aimed at exterior and structural changes — additions, major remodeling, anything visible outside. Interior-only cosmetic work generally isn’t the focus, but confirm your specific scope with Covenant Administration at 281-210-3800.
What happens if I skip a required permit?
For projects that genuinely require one — additions, floodplain work — building without it can mean stop-work orders, problems at resale, and redoing work at your expense. Given that the permit process exists and is inexpensive relative to the project, there’s no good reason to skip it.
