Can HDB Walls Be Removed? What Homeowners Need

A wall can make an HDB flat feel smaller than it is, block daylight, divide the kitchen from the living area, or prevent a layout from adapting to the way a household now lives. So, can HDB walls be removed? In some cases, yes. But the answer depends on the wall itself, the approved flat configuration, the services around it, and the renovation requirements that apply to the proposed work.

This is particularly important for resale and older HDB flats. Previous renovations, concealed electrical work, existing finishes and undocumented alterations can make wall removal more complicated than it appears on a floor plan.

The right starting point is therefore not hacking. It is identifying what the wall does, checking the actual unit, and deciding whether removing it will genuinely improve the finished home.

Can HDB Walls Be Removed Legally?

Some internal non-structural partition walls may be eligible for removal or alteration, subject to the applicable HDB requirements and approvals.

Structural walls, reinforced concrete elements, beams, columns and other components that form part of the building’s structural system must not be removed or altered simply to achieve a different interior layout.

A wall’s appearance is not enough to determine whether it can be hacked. Thickness, material or location alone should not be treated as proof.

The proposed alteration should be checked against the relevant plans and actual site conditions before demolition is included in the renovation scope.

Where approval is required, the necessary application should be handled before work begins.

Structural Walls Versus Internal Partition Walls

The most important distinction is whether a wall forms part of the building’s structure.

Structural elements help transfer loads safely through the building. They are not interior design components that can be adjusted to create a wider doorway or open-plan room.

Internal partition walls mainly divide spaces. Some may be suitable for partial or full removal, but even a non-structural wall can contain:

• Electrical wiring
• Switches and sockets
• Air-conditioning provisions
• Plumbing or service routes
• Connections to ceiling or floor finishes

This means the demolition itself is often only one part of the job.

A proper renovation plan should also account for what happens after the wall is gone.

Why Resale HDB Flats Need Extra Care

Wall removal in a resale flat can require more investigation than in a newly completed home.

The existing unit may already have undergone one or more renovations. Walls may have been altered, electrical points relocated, flooring overlaid or services concealed behind finishes.

This creates several practical questions:

• Does the existing flat still match the original plan?
• Have previous alterations been made?
• Are there concealed electrical or plumbing routes?
• Will existing flooring match after the wall is removed?
• Does the ceiling continue evenly between both rooms?
• Will new carpentry need to replace storage currently fixed to the wall?

These issues should be assessed before the quotation is finalised.

If you are planning a broader resale renovation, our guide to home renovation planning in Singapore explains why site verification should come before final design decisions.

Do Not Rely on a Neighbour’s Layout

A nearby flat may appear identical to yours, but another homeowner’s renovation is not proof that your proposed wall can be removed.

Different units may have different orientations, construction details, service arrangements or previous alterations.

A neighbour may also have used a partial opening rather than full removal, or carried out work that is no longer visible after completion.

Use other homes for inspiration, but verify your own unit independently.

Kitchen Walls and Open-Concept Layouts

Kitchen walls are one of the most common areas homeowners want to alter.

Opening the kitchen can:

• Improve daylight
• Connect cooking and dining areas
• Make compact homes feel larger
• Improve visual interaction between family members

But removing the wall should not be the only design objective.

The revised kitchen still needs enough space for:

• Refrigerator door clearance
• Worktop depth
• Cooking appliances
• Electrical points
• Storage
• Ventilation
• Circulation

For households that cook frequently, full wall removal may not always be the best answer.

A widened opening, glass divider or partial partition can create visual connection while retaining some separation.

Bathrooms, Service Areas and Utility Zones

Walls close to bathrooms and service areas deserve particular attention.

Wet zones involve:

• Waterproofing
• Plumbing
• Drainage
• Floor levels
• Pipe access
• Existing finishes

A proposed wall alteration near these areas may therefore affect more trades than expected.

Service ducts, risers and maintenance access areas should also be treated carefully. These spaces should not be assumed to be available for storage or expansion simply because they appear unused.

Plan the New Layout Before Hacking

A wall should be removed because the replacement layout works better, not simply because open-plan interiors are popular.

Before finalising demolition, test the new room around real dimensions.

Consider:

• Sofa depth
• Dining clearance
• Kitchen circulation
• Wardrobe access
• Door swings
• Storage
• Lighting
• Furniture placement
• Future household needs

A 3D visualisation can help homeowners understand whether the proposed space genuinely feels more functional before construction begins.

In some homes, retaining part of the wall can create a better result.

A partial wall can support:

• A television console
• Kitchen cabinetry
• Storage
• Electrical points
• A study area
• A visual divider

Alternatives to Full Wall Removal

Full demolition is not the only way to make an HDB interior feel more open.

Depending on the layout, alternatives can include:

• A widened doorway
• Partial wall removal
• Fixed glass panels
• Sliding partitions
• Folding panels
• Half-height dividers
• Open shelving between spaces

These approaches may preserve privacy, air-conditioning efficiency and useful wall space while still improving daylight and connection.

What Does HDB Wall Removal Cost?

The cost is not limited to hacking.

The full scope may include:

• Application or coordination work
• Site protection
• Demolition
• Debris disposal
• Electrical relocation
• Surface repairs
• Ceiling repairs
• Flooring reinstatement
• Painting
• Carpentry changes

Removing a wall can expose differences between the finishes on either side.

For example, a wall may leave a visible gap in existing floor tiles or vinyl. If the original material is no longer available, extending new flooring across the combined room may produce a cleaner result.

Electrical points previously mounted on the wall will also require new locations.

A transparent quotation should separate the demolition work from the reinstatement and finishing work.

Timing and Renovation Sequence

Wall hacking normally happens early in the renovation programme.

If eligibility or approval is confirmed too late, it can delay:

• Flooring
• Electrical work
• Ceiling installation
• Carpentry measurements
• Painting
• Final finishing

The layout should therefore be resolved before custom carpentry is fabricated or finishing materials are ordered.

A Safer Process for Altering HDB Walls

A practical process is:

1. Identify what is not working in the existing layout.
2. Develop one or more alternative space plans.
3. Assess the actual flat and relevant plans.
4. Identify structural elements and nearby services.
5. Confirm whether the proposed work is permitted.
6. Complete required approval steps where applicable.
7. Finalise electrical, flooring, ceiling and carpentry details.
8. Coordinate demolition with the other renovation trades.
9. Reinstate affected finishes properly.
10. Inspect the completed work before handover.

Albedo Design approaches wall alterations as part of the complete renovation plan rather than as an isolated hacking item.

This helps homeowners evaluate the change based on buildability, cost and long-term functionality.

What If You Own a New BTO Flat?

New BTO owners face a slightly different planning process because the decision is often being made before the first full renovation begins.

We cover that separately in our guide:

Can BTO Walls Be Removed? What to Check First

That article focuses specifically on new BTO layouts, planning before renovation, service coordination and alternatives to full wall removal.

Make the Layout Work After the Wall Is Gone

Removing an eligible wall can make an HDB flat feel brighter, more connected and more flexible.

But demolition should never be the end goal.

The stronger question is whether the finished layout provides better circulation, practical storage, appropriate privacy and enough flexibility for the household over time.

Planning a larger HDB renovation? Explore our Residential Renovation Contractor for HDB & BTO Homes in Singapore service for interior design, renovation and project coordination.