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BTO and HDB Renovation Cost in Singapore (2026): 3, 4 and 5-Room Breakdown
Typical 2026 renovation budgets for 3, 4 and 5-room BTO and HDB flats, a cost breakdown by item, and the hidden costs to check in any quote.
- A standard 4-room BTO renovation typically costs about $40,000 to $56,000 in 2026; 3-room about $25,000 to $43,000, 5-room about $45,000 to $67,000.
- Carpentry is usually the biggest item, around a third of the budget.
- Check quotes for haulage, protection works, PE endorsement, electrical and plumbing.
Homey Furnishing 3 min read A standard renovation for a 4-room BTO in Singapore typically costs about $40,000 to $56,000 in 2026. A 3-room is about $25,000 to $43,000 and a 5-room about $45,000 to $67,000. Resale flats usually cost more because of hacking and rewiring, while a light cosmetic refresh can cost far less. Here is where the money goes, and what to check before you sign.
Renovation cost by flat type (2026)
| Flat type | Typical standard renovation |
|---|---|
| 3-room BTO or HDB | About $25,000 to $43,000 |
| 4-room BTO or HDB | About $40,000 to $56,000 |
| 5-room BTO or HDB | About $45,000 to $67,000 |
These are market ranges from 2026 Singapore renovation cost guides. Resale flats commonly cost 20 to 40% more than a BTO of the same size, because of hacking, re-tiling and rewiring. An extensive job with heavy hacking and premium finishes can go well above these ranges.
Where the money goes
Carpentry is usually the biggest single item, often around a third of the budget. For a 4-room BTO budget of about $48,000, that is roughly $15,000.
| Item | Typical 2026 cost |
|---|---|
| Kitchen cabinets, top and bottom | About $180 to $360 per foot run |
| Wardrobes | About $200 to $360 per foot run |
| Tiling | About $6 to $12 per sq ft |
| Bathroom waterproofing and re-tiling | About $3,100 to $4,700 per bathroom |
| Toilet renovation, overlay vs hack and redo | About $4,500 to $6,500 vs $5,000 to $8,000 per toilet |
| Partition wall hacking, edges made good | About $550 to $1,300 per wall |
| Simple false ceiling | From about $1,500; elaborate designs for a large flat can reach about $6,000 |
For the hacking items, our hacking cost calculator gives a range for your own scope. For toilets, read our HDB toilet renovation guide, and for kitchens, our HDB kitchen renovation cost guide.
Costs that quotes often leave out
- Debris haulage and disposal after hacking.
- Protection works for floors, lifts and common areas.
- PE endorsement where a professional engineer is required, about $800 to $2,000.
- Electrical points and rewiring, done by a licensed electrical worker.
- Plumbing changes, done by a PUB licensed plumber.
- Curtains, lights and appliances, which are often outside a renovation package.
Ask for an itemised quote with these lines shown, even when they cost nothing. Our guide to clearer repair quotes shows what to ask for.
How to keep a BTO renovation on budget
- Fix the layout early. Moving the kitchen sink, hob or toilets adds plumbing and gas costs.
- Overlay where you can. Tile and vinyl overlays need no permit and skip the hacking.
- Spend on carpentry you use daily. Wardrobes and kitchen cabinets first, feature walls later.
- Use a DRC contractor. HDB requires renovation works to be done by a contractor in its Directory of Renovation Contractors. See our guide to HDB registered contractors.
- Separate the small jobs. Curtains, drying racks, drilling and furniture assembly can be done at a fixed price with our BTO move-in packages.
Want a design and renovation quote? See our BTO interior design and HDB interior design services. Renovation works are carried out by our partner V On Construction Pte. Ltd., which is listed in HDB's Directory of Renovation Contractors.
FAQ
How much does it cost to renovate a 4-room BTO? A standard renovation is typically about $40,000 to $56,000 in 2026, depending on carpentry, flooring and how much is hacked.
How much does it cost to renovate a 5-room HDB flat? About $45,000 to $67,000 for a standard renovation. Resale 5-room flats usually cost more because of hacking and rewiring.
What is the biggest cost in an HDB renovation? Carpentry, often around a third of the budget. It is priced per foot run, so compare quotes on the same lengths and materials.
How much does a false ceiling cost in Singapore? A simple false ceiling for a few areas can start from about $1,500, while elaborate designs across a large flat can reach about $6,000. False ceilings need no HDB permit but must leave at least 2.4m of headroom.
Sources: smartcalculator.sg HDB Renovation Cost Singapore 2026 and Renovation Quotation Singapore 2026, The Moneybees HDB toilet renovation guide, Home & Decor renovation price guide, and HDB Renovation Guidelines, checked 21 October 2026. All figures are market ranges, not quotes.