Typical Cost
How much does an HDB renovation cost by flat type?
Typical Homenex renovation cost by HDB flat type (S$), October 2026 | Flat type | Typical range (S$) |
|---|
| 3-room BTO | 35,000 – 50,000 |
| 3-room resale HDB | 45,000 – 65,000 |
| 4-room BTO | 45,000 – 60,000 |
| 4-room resale HDB | 55,000 – 80,000 |
| 5-room BTO | 60,000 – 75,000 |
| 5-room resale HDB | 70,000 – 95,000 |
| Executive flat or maisonette (resale) | 75,000 – 115,000 |
4-room HDB: S$45,000 – S$60,000 for a BTO flat and S$55,000 – S$80,000 for a resale flat.
5-room HDB: S$60,000 – S$75,000 for a BTO flat and S$70,000 – S$95,000 for a resale flat.
These ranges include carpentry and Homenex's design fee. Your own figure depends on the condition of the flat and the scope you choose.
What Moves The Price
What most often takes a project to the top of the range.
These items most often decide where an HDB renovation lands within its range.
- TV feature wall: the size, materials and built-in details of the feature wall.
- Flooring: the type of flooring and how much of the home is redone.
- Carpentry: how much built-in carpentry the home has, such as wardrobes, kitchen cabinets and storage.
Scope First
Budget depends on what the home needs.
Two HDB flats with the same floor area can require very different investment. A BTO home may begin with a clean shell and standard fittings. A resale flat may involve demolition, repair, rewiring, plumbing updates, replacement flooring and more site coordination.
Before treating a budget number as final, review the rooms affected, the condition of the flat and the level of custom work expected.
- Living and dining: feature wall, TV storage, lighting and loose furniture coordination.
- Kitchen: cabinet length, laminate selection, countertop material, appliance planning, backsplash and workflow.
- Bedrooms: wardrobes, platform storage, study corners and lighting.
- Bathrooms: overlay or replacement, tile selection, fittings, vanity, shower screen and ventilation.
Cost Drivers
Custom carpentry and wet works usually need careful control.
Custom carpentry often has a large effect on budget because it appears across kitchens, wardrobes, storage walls, vanities, study areas and display features. Wet works can also affect cost because they involve hacking, waterproofing, tiling and coordination with plumbing or drainage.
The goal is not to remove every cost driver. It is to decide which cost drivers support your daily life enough to justify the investment.
- Laminate carpentry is usually more cost-controlled than veneer or specialty surfaces, but the edge detail, texture and colour matching still need care.
- Quartz and sintered stone counters usually cost more than basic solid surfaces, but can be easier to justify for daily cooking if stain and heat resistance matter.
- Large-format bathroom tiles can feel calmer, but may increase installation complexity and make floor falls or small bathrooms harder to resolve.
- Vinyl flooring can be practical for many dry HDB areas, while tiles may suit homeowners who prioritise water resistance, durability and a cooler underfoot feel.
Quotation Clarity
Compare assumptions, not only totals.
A low quotation can become uncertain if important assumptions are unclear. Homeowners should check whether demolition, haulage, electrical points, plumbing, painting, hardware, fittings, permits, protection works and cleanup are included or excluded.
A clearer quotation reduces the chance of misunderstanding when design decisions become site instructions.
Contingency
Keep a reserve for changes and site findings.
Resale HDB homes especially can reveal conditions only after closer inspection or hacking. Even BTO homeowners may change appliance choices, lighting preferences or storage requirements during planning.
A practical contingency keeps decisions calmer because every change does not immediately feel like a crisis.
