Three kinds of Blacktown bathroom
Post-war houses. Much of Blacktown, Seven Hills, Lalor Park and Doonside was built in the 1950s to 70s — brick veneer and fibro homes with a small bathroom, a separate toilet and often a bath under the shower. Many still have the original tiles.
Walk-up units. Around the station and the town centre, older three-storey walk-ups have compact bathrooms, no lift and masonry walls.
Newer estates. Further out, homes from the 2000s onward in areas such as Stanhope Gardens and Kellyville Ridge have builder-grade bathrooms that owners want to lift: better tiles, a proper shower, more storage.
What gets checked first
- Asbestos in pre-1990 wall linings — tested before pricing.
- Floor structure under the shower on raised timber floors.
- Old galvanised pipes — replaced while the walls are open.
- Strata approval for units, before any start date.
Popular changes
- Separate toilet combined into the bathroom.
- Bath-over-shower swapped for a walk-in shower, or a freestanding bath kept where there is room.
- Wall-hung vanity with drawers.
- Tiles to the ceiling in the shower.
See small bathroom renovations and waterproofing.
Units near the station
Walk-up bathrooms follow the same process as Harris Park: strata approval, stair-carried materials, and a three to four week program.
What it costs
See the 2026 cost bands.
Call 02 5017 7788 or send the room details through.
Questions people ask before they commit
Do older Blacktown houses have asbestos in the bathroom?
Houses built or renovated before about 1990 can have asbestos cement sheeting behind wall tiles and in eaves and wet-area linings. It is tested before demolition is priced, and removal is handled by a licensed asbestos contractor.
Can a separate toilet be combined with the bathroom?
Often, where the toilet sits beside the bathroom. Removing the dividing wall gives room for a walk-in shower and a wider vanity. Whether the wall is load-bearing is checked first.
What does a bathroom renovation cost in Blacktown?
As a 2026 guide, a standard house bathroom usually lands between $18,000 and $32,000, and a unit bathroom between $17,000 and $27,000, depending on size, layout changes and finishes.
Do I need strata approval for a unit bathroom?
Generally yes. Bathroom renovations that involve waterproofing usually need owners corporation approval before work starts, so apply early.