Build clever bathroom storage in a Singapore maisonette

The upper bathroom in a maisonette is often tight and oddly shaped, which is why storage is the first thing owners get wrong. This HDB Renovation Guide Singapore centres on maisonette bathroom storage ideas with measurements and layout tips, while flagging the common defects to avoid. The core answer is to build vertical, keep the floor clear, and check for defects before you fit a single shelf.

Why maisonette baths need a storage plan

Being internal and two floors up, the maisonette bathroom gives you little wall space and poorer ventilation. Without a plan, bottles end up on the basin edge and the floor gets cluttered, which traps moisture. A measured storage layout keeps things dry and the room safe to move in.

Storage ideas with measurements

• Recessed cabinet, 400mm wide, 150mm deep, above the basin: Uses dead wall space, keeps the corridor clear. Stay clear of pipes and structural walls.
• Tall niche, 300mm by 600mm, in the shower wall: Holds soap and shampoo at arm height. Must be built during tiling, before the room is sealed.
• Under-basin drawer, 500mm wide, 450mm deep: Replaces the open pedestal and hides cleaning gear.
• Over-toilet unit, 600mm wide, 300mm deep, hung at 1.6m: Uses the only free upper wall in most maisonette baths.

Common defects to avoid

• Hollow tiles behind the cabinet, which mean the screws will not hold. Tap and listen before drilling.
• Water seepage from a poorly sealed niche, which rots the wall behind it.
• Uneven flooring that makes a freestanding unit rock. Level it first.
• Skipping the defect check on BTO pre-done tiles, which sit under a 3-year liability period.

Costs and HDB rules

A measured bathroom storage build runs about S$1,000 to S$3,500, including carpentry and tiling works. A full maisonette renovation is roughly S$60k to S$90k and takes 10 to 16 weeks for a resale. Any wall fixing, tiling, or built-in needs an HDB renovation permit through the Renovation Contractor Registration System, and only HDB-registered contractors may do regulated works. BTO toilet tiles are pre-done and under a 3-year defect liability, so hacking them early can void waterproofing and needs HDB approval. Noisy works run Monday to Saturday, 9am to 6pm, never on Sundays or public holidays.

Layout tips

• Keep a 700mm clear path from the door to the shower.
• Put daily items low and spares high, so the room stays tidy.
• Match the cabinet colour to the floor to make the small room read as one.
• Use water-resistant board, not plain plywood, inside a damp bath.

Frequently asked questions

Can I build a recessed cabinet in a maisonette bath? Yes, if the wall is non-structural and the permit approves it. Check for pipes first.

How do I avoid hollow-tile failures? Do a defect inspection and tap-test before drilling, and have your contractor note weak spots.

Is the over-toilet unit worth it? Yes, it uses the only free wall and keeps the floor clear.

A maisonette bathroom stores best when the plan respects the room's limits. Measure, build up the walls, dodge the common defects, and the tight space will work harder than it looks.