Partition Walls in Singapore: Types, Costs and HDB Rules

A partition wall is the most common way to add a room to a Singapore flat: a study carved from the living room, a second bedroom for a growing family, or a kitchen closed off from the rest of the home. Building one is simpler than most people expect. Taking one down is not. Here are the types, the rules and the trade-offs.

Partition Wall or Room Divider?

The first question is whether you need a wall at all. A room divider, such as a slatted screen, open shelving or a curtain, separates a space visually and keeps the light. A partition wall gives you privacy and quiet, and a room you can close. If you need to sleep while someone else watches television, or take calls behind a shut door, you need a wall. Our guide to room dividers covers the lighter options.

Types of Partition Wall

Gypsum board (drywall)

A timber or metal stud frame clad in gypsum board. It is the fastest and cleanest to install, light enough for any floor, and easy to run wiring through. With insulation in the cavity it blocks sound reasonably well. It is less robust than block for hanging heavy cabinets, so plan reinforcement where the television or wall-hung storage will go.

Hollow block

A masonry wall that feels solid, takes heavy fixings and blocks sound better than an uninsulated drywall. It is slower and messier to build, heavier, and needs a lintel above any door or window opening.

Glass block

Translucent blocks that let daylight through while blurring the view, useful for a room that would otherwise have no window of its own. They have a distinctly retro look, which suits some styles more than others.

Modern Luxury, at Bellewaters

Glass partitions and sliding glass doors

Framed clear, fluted or reeded glass is the most popular way to close off a kitchen or study in a Singapore home, because it separates the space without losing the light. Our fluted glass guide compares the finishes. Ask your contractor how the system you choose is classified for HDB before you commit to it.

HDB Rules for Building a Partition Wall

HDB’s building works guidelines allow new internal walls in three materials without a renovation permit: 63mm hollow block, 80mm glass block, or gypsum board. A few conditions come with it:

• A new room for living in must have adequate natural lighting and ventilation.
• The escape route in a fire must stay direct, and must not pass through another room.
• A block wall needs a reinforced concrete lintel above any door or window opening in it.
• Fixings into gypsum are limited in size, which matters for heavy wall-hung items.
• Combustible or toxic materials such as plywood and plastics are not allowed for partitions.
• All work, even work that needs no permit, must be done by a contractor listed in HDB’s Directory of Renovation Contractors.

The lighting and ventilation rule is the one that shapes most layouts. A room carved from the middle of a living area, with no window of its own, will struggle to meet it, which is why a new bedroom or study is usually placed against an existing window.

Removing a Wall Is Different

Taking a wall down, in full or in part, always needs HDB’s written approval first. Structural walls, columns and beams can never be hacked. Non-structural walls can only be removed up to the underside of the beam or slab above, and if steel reinforcement turns up during hacking, work must stop and HDB must be told.

HDB assesses which walls are structural when your contractor applies for the permit with the flat’s floor plan. Demolition is limited to weekdays between 9am and 5pm, for no more than three consecutive days. Our HDB renovation permit guide covers the full process. The household shelter is off limits entirely: its walls, floor, ceiling and door must not be altered.

In a condo, partition works are governed by your MCST’s house rules instead. Our comparison of HDB and condo renovation rules explains the difference.

How Much Does a Partition Wall Cost?

Gypsum board is usually the cheapest. As a rough guide, Singapore contractors quote around $20 to $40 per square foot for a drywall partition in 2026, which puts a typical HDB bedroom wall at somewhere around $1,500 to $2,800 before doors, insulation and finishing. Block and glass walls cost more, and glass varies widely with the frame and the type of glass.

The wall itself is rarely the whole cost. A new room also needs a door, lighting and power points, possibly air-conditioning, and in an older flat the wiring may need attention anyway. Price the room, not just the wall.

Modern Eclectic, at 291 Bishan

Designing a Partition That Does Not Feel Like an Afterthought

• Borrow light. A glazed strip above the door, or a fluted glass panel beside it, keeps the corridor side from going dark.
• Build storage into it. A wall with a wardrobe or shelving on one side does two jobs for the same floor space.
• Match the ceiling. Run the partition to meet the false ceiling cleanly, and plan cove or downlights for both new rooms.
• Soundproof where it matters. Insulation in a drywall cavity costs little and makes a real difference for a bedroom or study.

Planning a Partition in Your Home

A partition is easiest to get right at the layout stage, before carpentry and lighting are drawn around the old plan. For how partitions fit into a whole-flat layout, see our HDB interior design ideas. Get in touch for a free consultation and we will check what your flat allows before you commit.