What is the renovation timeline for a maisonette master bedroom in Singapore?
A maisonette is a two-storey HDB flat, and its master bedroom often sits on the upper level with a private stair landing, which changes both the schedule and the rules. This HDB Renovation Guide Singapore sets out a practical renovation timeline for a maisonette master bedroom and the HDB rules that apply before you start. The straight answer is that a maisonette master bedroom fits inside a broader 10 to 16 week resale renovation, or 8 to 12 weeks for a BTO, but the stair access and the bomb shelter below it add real constraints.
How a maisonette changes the schedule
Materials and debris move up a narrow internal stair, so deliveries are slower than in a single-level flat. Carpenters plan the master bedroom around the stair landing, and a large wardrobe panel must bend around the turn, adding about a week to carpentry. For a resale, the 10 to 16 week window covers the whole home, with the master bedroom after the downstairs wet works.
Phase-by-phase master bedroom timeline
- Weeks 1 to 2: permit and hacking of old wardrobes and partitions, with debris carried down the stair.
- Weeks 3 to 4: rewiring, new power points, and any ceiling or cornice works on the upper slab.
- Weeks 5 to 7: built-in wardrobe and study carpentry, measured to clear the stair turn.
- Weeks 8 to 10: painting, flooring overlay, and lighting, then a final cleanup of both levels.
A BTO maisonette trims this to about 8 to 12 weeks because the shell is new and the defect liability period covers the basics.
HDB rules that apply to the master bedroom
- You may hack non-structural partition walls with HDB approval, but never beams, columns, or the reinforced concrete slab.
- The bomb shelter, often at the lower level, keeps its door and frame, and its walls cannot be hacked.
- Windows on the upper floor must be done by an HDB-approved window contractor using shatter-resistant glass and proper restraints.
- HDB caps the number of allowed electrical points, so plan bedroom lighting and chargers within that limit.
- Noise rules apply: hacking and drilling only Monday to Saturday, 9:00am to 6:00pm, never on Sundays or public holidays.
A practical pre-start checklist
- Confirm with your contractor which walls are structural before any hacking plan.
- List every power and lighting point and check it against HDB's cap.
- Measure the stair turn so wardrobe panels actually fit up to the bedroom.
- Book an HDB-approved window contractor if the upper windows need work.
- Align the master bedroom phase with the downstairs wet works to avoid rework.
Frequently asked questions
Can I open up the stair landing for a bigger bedroom? Only if the wall is non-structural and HDB approves; load-bearing elements stay.
Why does my maisonette cost more to renovate? Stair handling, two levels of works, and tighter carpentry access add labour.
Do I need a permit for the wardrobe alone? Built-in carpentry is allowed with approval, and the overall renovation permit covers it.
A maisonette master bedroom in Singapore follows the same HDB rules but runs on a tighter clock because of the stair, so plan the wardrobe around the turn and the timeline stays calm.
