HDB permit rules for an executive master bedroom in Singapore

An executive apartment is larger than a 5-room flat, and the master bedroom often has a built-in wardrobe bay and a study corner. This HDB Renovation Guide Singapore explains the permit rules that apply to that room and gives a practical checklist before you sign with a contractor. The key point is that most carpentry is allowed, but anything touching structure, windows, or the floor screed needs HDB approval through a registered contractor.

Which works need an HDB permit

Any renovation affecting walls, floors, windows, pipes, or fixed fittings needs an HDB renovation permit. Apply through HDB's e-Services and the Renovation Contractor Registration System, or RCRS. Only HDB-registered contractors may carry out regulated works. For the master bedroom, this means wardrobe carpentry is fine, but moving a structural wall, hacking the original screed, or replacing the window is not a DIY job.

Practical checklist before you start

1. Confirm the contractor is on the HDB registered list and can submit the permit for you.
2. Mark structural walls, beams, and columns on the plan. These cannot be hacked.
3. Check if the room shares the bomb shelter wall. That wall and the shelter door stay.
4. Decide floor treatment. Overlay is allowed, hacking the screed is not in most flats.
5. Plan window works with an HDB-approved window contractor using shatter-resistant glass.

Costs and timing

Master bedroom carpentry in an executive flat, including a full wardrobe and a feature wall, runs S$6,000 to S$12,000. The permit itself is modest, but the queue adds time. A full executive renovation takes about 10 to 16 weeks for resale, or 8 to 12 weeks for BTO. Noisy works are allowed Monday to Saturday, 9am to 6pm, and stop on Sundays and public holidays.

Tips to avoid permit problems

• Keep the original reinforced concrete screed. Overlay vinyl or tile on top instead.
• Use a CaseTrust-accredited firm with Renovation Continuity Insurance for peace of mind.
• Do not box in the bomb shelter door, HDB requires access to stay clear.
• Ask for the approved plan in writing before any hacking begins.

FAQ

Do I need a permit just for a wardrobe? Built-in carpentry is allowed with approval, and the registered contractor handles the paperwork as part of the job.

Can I hack the master bedroom wall for a walk-in robe? Only if it is a non-structural partition and HDB approves. Load-bearing walls stay.

Who checks the work? HDB inspects regulated works. Using a registered contractor keeps you on the right side of the rules.

An executive master bedroom gives you room to plan, but the permit rules still set the limit. Follow the checklist, use a registered contractor, and your wardrobe and feature wall get done without a stop-work order.