How much does it cost to renovate a 4-room HDB in Singapore 2026?

A 4-room HDB BTO renovation typically costs $40,000–$63,000 in 2026 for a habitable but stylish finish. A 4-room HDB resale renovation costs significantly more — $56,000–$82,000 — because resale units almost always require hacking, rewiring and waterproofing on top of the cosmetic work. Premium resale renovations with high-end finishes cross $100,000.

Why does resale renovation cost more than BTO?

Resale flats typically cost 20–40% more to renovate than equivalent BTO flats. The reason is infrastructure: BTO units are handed over with new wiring, new bathroom waterproofing and modern plumbing, so most spend goes on furniture-grade carpentry and surfaces. Resale units often need full electrical rewiring (older boxes can't handle modern loads), bathroom hacking and re-waterproofing, kitchen tile-removal, and ceiling/wall hacking — these are labour-intensive trades that add tens of thousands.

How much should I budget for a kitchen renovation?

A basic Singapore HDB kitchen remodel starts at $8,000–$15,000 covering new cabinets, a quartz or solid-surface countertop, and standard appliances. A mid-range kitchen with custom carpentry, better appliances and a larger backsplash runs $15,000–$30,000. A premium kitchen with imported surfaces, integrated appliances and an island counter can reach $30,000–$60,000.

How much for a bathroom renovation in Singapore?

Per bathroom: a basic refresh (replace fittings, retile) costs $4,000–$8,000; a full gut-and-rebuild with quality fittings runs $8,000–$20,000; a premium bathroom with rain showers, frameless glass and designer fittings can be $20,000–$40,000. HDB resale units usually need the full $8,000+ scope because older tiling and waterproofing has to come out anyway.

What's the biggest cost driver in a Singapore renovation?

Carpentry. Built-in cabinets, wardrobes, kitchen cabinetry, living room TV consoles, and bathroom vanities together typically account for 35–45% of the total renovation cost. The wood grade (plywood vs. solid wood vs. laminate), the linear meterage you choose, and whether you go floor-to-ceiling drive the number more than the contractor's labour rate.

How much contingency should I keep for renovation surprises?

10–15% on top of your contracted scope. Common surprises that eat into this: hidden damage uncovered during hacking, mid-project design changes, lead-time-driven appliance swaps, and corrections to off-spec installations. Most over-budget renovations are not from a single big-ticket item — they are death by a thousand $300–$2,000 add-ons.

Can I finance my renovation in Singapore?

Yes. Renovation loans from banks (HDB-listed financial institutions) are capped at the lower of 6 months' salary or $30,000, at fixed rates typically 4–6% p.a. with 1–5 year tenors. Use our [Renovation Loan Calculator](/housing/renovation-loan-calculator) to model your monthly instalment, then sense-check whether the loan + your savings cover the realistic range for your flat type.

← Back to Articles

Renovation Cost Singapore 2026: What HDB, Resale & Condo Renos Actually Cost

verifiedBy Smart Calculator Editorial·Verified against official .gov.sg sources·20 May 2026

Real Singapore renovation cost ranges for 2026 — by flat type, by room, BTO vs resale, plus the carpentry and contingency rules that decide whether you go over budget.

Try the Calculator

Renovation Loan Calculator

Apply what you read — get an instant result.

Calculate →

A Singaporean renovation isn't a single number — it's a range, and the range depends on three things: your flat type, whether you bought BTO or resale, and how much carpentry you commission. Get those right and you can plan to within 10%. Get them wrong and you'll be the next person posting "we went 40% over budget" on r/singapore.

Here is what HDB and condo renovations actually cost in 2026, with the cost drivers that decide where you land in the range. When you're ready to budget yours, the Renovation Loan Calculator shows the monthly impact.

The big table — total renovation cost by flat type (2026)

Flat type	Typical range	Premium range
3-room HDB BTO	$30,000 – $45,000	$50,000+
4-room HDB BTO	$40,000 – $63,000	$70,000+
5-room HDB BTO	$45,000 – $70,000	$80,000+
4-room HDB resale	$56,000 – $82,000	$100,000+
5-room HDB resale	$65,000 – $94,000	$110,000+
Resale condo	$80,000 – $105,000	$130,000+
Executive condo / new condo	$50,000 – $90,000	$120,000+

These ranges cover a habitable, well-finished home — flooring, basic carpentry, electrical, lighting, painting, kitchen, all bathrooms. They do not include furniture, white goods, or moving costs.

A few things to notice straight away.

Resale is 20–40% more than BTO. Always.

The single biggest cost decision happens before you call a contractor: BTO or resale.

A 4-room BTO arrives with new wiring, new bathroom waterproofing, new plumbing and finished walls. You can move in with a cosmetic refresh (paint + light fittings + flooring) for under $25,000 if you genuinely want to. The renovation budget mostly buys furniture-grade carpentry — wardrobes, TV console, kitchen cabinetry.

A 4-room resale almost always needs:

Hacking of old kitchen and bathroom tiling
Re-waterproofing of bathroom floors (15–30 year-old waterproof membranes are no longer trustworthy)
Full electrical rewiring — older distribution boards often can't handle modern aircon, induction hobs and EV chargers
Ceiling and wall hacking if the previous owner installed false ceilings or partition walls you want to remove

Those are labour-intensive trades, not material costs. They add $15,000–$30,000 before you've placed a single piece of new furniture. That's the 20–40% premium, almost in full.

Where the money actually goes

Inside any flat type, the cost mix is roughly the same. Carpentry dominates.

Component	Share of total budget
Carpentry (cabinets, wardrobes, vanity, TV console)	35–45%
Kitchen (cabinetry, countertop, appliances)	12–20%
Bathroom (per bathroom, all-in)	8–15%
Flooring (vinyl / laminate / tile / marble)	8–14%
Electrical + lighting	6–10%
Painting	3–6%
Aircon (3–4 fan-coil units)	4–7%
Contingency (10–15%)	10–15%

This is why two identical 4-room flats can come in $25,000 apart. The owners chose different carpentry, not different contractors.

Kitchen and bathroom — the two rooms that decide the budget

Both are small but punch above their weight. Bathroom and kitchen together typically cost more than every other room combined.

Tier	Kitchen	Bathroom (each)
Basic refresh	$8,000 – $15,000	$4,000 – $8,000
Mid-range gut	$15,000 – $30,000	$8,000 – $20,000
Premium / designer	$30,000 – $60,000	$20,000 – $40,000

If you're tight on budget and need to choose, the contractor's-rule answer is: spend on the kitchen, not the second bathroom. A well-built kitchen lasts 15+ years and is the room every visitor sees. A premium second bathroom is mostly enjoyed alone.

The 10–15% contingency rule

Almost every over-budget Singapore renovation has one shape: not one big surprise, but death by a thousand $300–$2,000 add-ons. Mid-project lighting upgrades. A second coat of waterproofing once the old one came off. The "while we're at it" socket relocation. A grade-up on bathroom tiles.

Two practical rules from contractors:

Hold 10–15% in reserve, in cash. Not as a loan — as cash you can release immediately when the contractor asks. This is your contingency. If you don't spend it, it pays for furniture or stays in savings.
Lock the design at the contract stage. Every change order after the contract is signed costs 1.5–2× what the same item would have cost in the original quote, because the contractor has to re-coordinate trades.

Renovation financing

Bank renovation loans (from HDB's panel of financial institutions) are capped at the lower of:

6 months of your monthly gross salary, or
$30,000

Tenor is usually 1–5 years; rates 4–6% p.a. fixed in 2026. That means if your renovation is $60,000+ — most resale renovations — at least half is coming from your savings, not the loan.

→ Use the Renovation Loan Calculator to model the monthly payment. → Before committing, sense-check affordability with the HDB Affordability Calculator. → For the full home-buying total cost (renovation included), the Total Ownership Cost Calculator approach applies — but stretched over 25 years.

What a typical owner actually spends

Below is what each life stage tends to look like in real Singapore renovations, anchored to 2026 ranges.

First-time HDB BTO couple, mid-20s to early-30s. Budget around $45,000–$55,000 on a 4-room. Most of it on carpentry and the kitchen. Skip premium bathroom tiles. Don't over-build on TV-console carpentry that will look dated in 5 years.
Family upgrading to a 5-room resale, late-30s. Budget $75,000–$90,000. The resale premium covers full bathroom gut, kitchen rebuild, and re-flooring. Carpentry done once, well, lasts the next 12–15 years.
Move into a resale condo, 40s+. Budget $85,000–$110,000. Most of the increase over a 5-room HDB resale comes from longer condo handover scope (more carpentry, en-suite bathroom upgrade, kitchen breakdown).

Caveats

Ranges are 2026, broad market. A specific quote depends on contractor pedigree, design complexity, and your finish choices.
Excludes furniture and white goods. Add at least $10,000–$25,000 for a habitable furnished unit.
Excludes "while you're at it" purchases. Bidet, water heaters, fancy locks, smart switches — easy to add another $3,000–$8,000.
MCST submissions for condos take time. Condo renovations have additional approval steps and tighter working-hour rules. Plan timelines, not just costs.

Sources

Industry rate cards aggregated from Singapore renovation contractors and design firms (RCS, FixMove, HomeMatch, MoneySmart, Qanvast, EZID) for 2026.
HDB renovation loan rules — Housing & Development Board panel of financial institutions, 2026 caps and tenors.