HDB Interior Design Singapore: Hacking Walls Legally

HDB interior design Singapore homeowners keep asking the same question. Can we hack a wall to get a bigger living room. Since around 2021, HDB has restricted hacking of precast concrete walls in newer BTO flats, so any demolition plan needs the right checks first. We walk through what is allowed, what is not, and how to do it by the book.

Which walls you can never touch

HDB flats have structural elements that no renovation can alter. The rules exist to protect the building and the families next door. Before you dream of an open layout, learn the hard limits that every contractor respects.

Your team must leave these alone. Structural walls, beams, columns, and slabs are off limits. The bomb shelter, officially the household shelter, stays as built. You may add only light fittings and laminated flooring inside it, and the original door remains. Hacking any of these voids your permit and can trigger HDB enforcement action.

• Load-bearing walls marked on your HDB floor plan.
• Beams and columns that run through the flat.
• The floor slab and any reinforced concrete ledge.
• The household shelter and its original steel door.

A common mistake is assuming the wall between the bomb shelter and the living room is fair game. It is not. Plan around it with carpentry instead of demolition.

HDB interior design Singapore and the open-concept question

Open-concept kitchens are allowed in HDB flats. Many new BTO units arrive induction-ready, which fits HDB and SCDF rules on cooking without a gas supply. If you want a true open plan, you usually remove a non-structural divider between the kitchen and living area, not a load-bearing wall.

For an HDB open concept kitchen, the real skill is reading the plan. A wall that looks solid may be a lightweight partition you can take down. A wall that looks thin may hide a beam. Your HDB Licensed Renovation Contractor checks this against the official submission drawings before quoting a single dollar.

How to get an HDB renovation permit

All hacking work needs an HDB renovation permit before it starts. The permit is filed through the HDB Directory of Renovation Contractors, and only an LRC can submit it. Processing takes about 2 weeks, so add that to your calendar before you book a move-in date.

1. Engage an HDB Licensed Renovation Contractor from the DRC list.
2. Share your floor plan and the exact walls you want removed.
3. The contractor submits the permit application to HDB with the works scope.
4. Wait about 2 weeks for approval. Do not start hacking early.
5. Display the approved permit at the flat during the works.

Hacking steps for a safe demolition

Once the permit lands, the work follows a set order. Good sequencing keeps dust down and avoids damage to the rest of the home. I tell clients to stay with family on hacking days if they can. I have watched HDB interior design Singapore renovations stall because a wall looked removable but carried load.

1. Protect adjacent rooms with plastic sheeting and floor boards.
2. Hack during permitted hours, weekdays 9am to 6pm, never Sundays or public holidays.
3. Remove the non-structural partition first, then cart debris the same day.
4. Let the contractor patch and make good the ceiling and skirting lines.
5. Book an HDB or LRC inspection if required before you close up the walls.

Noise rules are not suggestions. Hacking and drilling only happen on weekdays between 9am and 6pm. Sundays and public holidays stay quiet across the block. Neighbours will report breaches, and HDB can suspend your permit on the spot.

Smart alternatives when you cannot hack

Sometimes the wall you want gone is structural, or the cost of making good is high. You still have options that open the space without demolition. This is where HDB flat space saving ideas earn their keep.

• Use a cased opening with a wide doorway instead of full removal.
• Replace solid doors with glass panels to pull light across rooms.
• Run consistent HDB approved flooring like vinyl or laminate from one room to the next so the eye reads one continuous space.
• Build low carpentry, such as a half-height display shelf, to divide the zone without a wall.

Good whole-house customization means matching the layout to what HDB will approve, not fighting the rules after you have paid a deposit. Talk to a renovation team that handles HDB permits every week, and you get a home that feels open and stays fully compliant from day one.