Township design review, Montgomery County permitting, and what a spa primary bath actually costs on a wooded Woodlands lot in 2026.
A primary bathroom remodel in The Woodlands typically runs $40,000 to $85,000 in 2026, driven mostly by shower size, stone selection, and whether the layout changes. Interior-only bathroom work does not trigger Woodlands Township Residential Design Review — that review applies to exterior changes — but construction permits for plumbing, electrical, or structural work go through Montgomery County. Expect five to eight weeks for a full primary bath, longer if a window, wall, or drain location moves.
What Woodlands homes actually need
Most primary baths we open up in The Woodlands are from the 1990s and 2000s: a large corner garden tub nobody has filled in a decade, a cramped separate shower with a framed door, a long double vanity at builder height, and a windowless water closet. The square footage is usually generous. It is simply allocated to the wrong things.
The highest-value move is almost always the same — take the garden tub out and give that footprint to a large walk-in shower or a wet room with a freestanding soaking tub inside it. You gain a bathroom that gets used daily instead of a feature that photographs well and sits cold.
Covenants and permits, plainly
The Woodlands Township enforces covenants through Residential Design Review, and homeowners often assume this means every project needs approval. For an interior bathroom remodel it generally does not — design review governs exterior appearance, additions, structures, and tree removal.
What does apply is Montgomery County permitting for plumbing, electrical, and structural work. If you are relocating drains, adding circuits, or altering a load-bearing wall, that is permitted and inspected work. If you are also changing a window — which comes up often when someone wants natural light over a new tub — you are now touching the exterior, and design review does enter the picture.
The practical point: ask your contractor to tell you, before contract, exactly which approvals your specific scope triggers. It is a short list, and it should be a confident answer.
Where the budget goes
On a $55,000 Woodlands primary bath, a realistic distribution looks like this: tile and stone $12,000 to $18,000, cabinetry and counters $10,000 to $15,000, plumbing fixtures and trim $6,000 to $12,000, shower glass $3,000 to $6,000, plumbing and electrical labor $6,000 to $9,000, and demolition, drywall, paint, lighting, and project management making up the balance.
The two decisions that move the number most are shower size and stone. A curbless wet room with a linear drain requires re-sloping the floor and, on a slab, cutting concrete. Large-format porcelain that looks like marble costs a fraction of book-matched natural stone and is materially easier to live with.
Wooded lots, humidity, and details that matter here
The Woodlands is shaded and humid, and bathrooms here need ventilation sized properly rather than whatever the builder installed in 1998. Specify an exhaust fan rated for the room volume, ducted fully to the outside, on a timer or humidity sensor.
Waterproofing is the other thing worth paying attention to and never economizing on. A properly installed sheet or liquid membrane behind tile is invisible and is the difference between a shower that lasts twenty years and one that quietly rots a wall.
Frequently asked questions
- Do I need Woodlands Township approval for an interior bathroom remodel?
- Generally no — Residential Design Review covers exterior work, additions, structures, and tree removal. Interior remodels that do not change the exterior typically do not require it, but changing or adding a window does.
- How long does a Woodlands primary bath take?
- Five to eight weeks for a full primary bath with a new walk-in shower, and longer if plumbing locations move or a window is added, since that adds permitting and inspection time.
- Is it worth converting the garden tub to a walk-in shower?
- For most Woodlands homeowners, yes. It is the single most-used improvement in the room. If you want a tub for resale or for children, a freestanding tub inside a wet room gives you both without keeping the dead corner.
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