Planning a 4 room HDB renovation in Singapore? Whether you're moving into a new BTO or refreshing a resale flat, understanding the true cost of renovation is the first step to avoiding budget surprises.
Based on Earth Interior Design's completed 4-room HDB projects, a full renovation typically costs between S$35,000 and S$100,000, with most homeowners spending around S$55,000 – S$70,000 for a well-designed standard renovation. Renovation timelines average 3 months.
Basic
S$35k – S$50k
Standard
S$50k – S$70k
Premium
S$70k – S$100k
Typical timeline
About 3 months
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How much does a 4 room HDB renovation cost?
Cost depends primarily on the scope of carpentry, your material and finish choices, and whether your flat is a BTO or resale. Here are the three tiers most 4-room HDB owners fall into:
| Package | Typical cost | What it covers |
|---|---|---|
| Basic | S$35k – S$50k | Functional refresh: new flooring, paint, lighting and minimal custom carpentry. Ideal for BTO owners who want a clean, simple home. |
| Standard | S$50k – S$70k | Custom carpentry throughout, feature wall, kitchen and bathroom upgrades, quality finishes. The most popular choice for 4-room HDB owners. |
| Premium | S$70k – S$100k | Full renovation with premium materials, bespoke furniture, integrated lighting design and designer finishes from end to end. |
4 room HDB renovation cost breakdown
Here's a typical cost breakdown by work scope for a 4-room HDB flat in Singapore:
| Scope of work | Typical cost (SGD) |
|---|---|
| Hacking and tiling | S$8k – S$15k |
| Carpentry (kitchen, wardrobes, feature wall) | S$15k – S$30k |
| Painting (full flat) | S$2.5k – S$4k |
| Electrical and plumbing | S$3k – S$6k |
| False ceiling and lighting | S$3.5k – S$8k |
| Bathroom renovation (×2) | S$8k – S$18k |
| Kitchen renovation | S$6k – S$14k |
* Estimates based on Earth Interior Design's completed 4-room HDB projects in Singapore. Actual costs vary by flat condition, material selection and project scope.
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BTO or resale
Resale flats usually need more hacking, rewiring and bathroom work, which adds S$5,000 – S$15,000 compared with a BTO.
Scope of carpentry
Kitchen cabinets, wardrobes and a feature wall make up the largest share of most budgets.
Materials and finishes
Premium countertops, veneers and designer lighting push a renovation into the premium tier.
Timeline: Based on our completed 4-room HDB projects, renovations typically take 2 to 5 months, averaging about 3 months. See our renovation timeline guide.
Our completed 4 room HDB projects
4-room HDBWoodlands Avenue
3-month renovation
4-room BTOYio Chu Kang Road
3-month renovation
4-room HDBAnamalai Avenue
3-month renovation
4-room HDBRivervale Crescent
2-month renovation
4-room HDBBedok South Avenue
5-month renovation
4-room HDBHillview Avenue
5-month renovation
Frequently asked questions
A full 4 room HDB renovation in Singapore typically costs between S$35,000 and S$100,000 depending on scope, material choices, and whether the flat is a new BTO or resale. The average for a standard renovation with custom carpentry and bathroom upgrades is around S$55,000 – S$70,000.
Based on our completed 4-room HDB projects, renovations typically take 2 to 5 months. A standard renovation with carpentry and tiling work averages 3 months. Larger scope projects or resale flats with extensive hacking can take up to 5 months.
BTO flats are generally cheaper to renovate as the structure is new, hacking requirements are minimal, and there are no old fixtures to remove. Resale renovations often require more demolition work, which adds S$5,000 – S$15,000 to the total cost. See our BTO and resale HDB cost guides.
A typical package covers hacking, tiling, carpentry (kitchen, wardrobes, living room cabinetry), painting, electrical works, bathroom renovation, and lighting. Feature walls, false ceilings, and smart home systems are add-ons.
Yes. All renovation works in HDB flats must be carried out by HDB-licensed renovation contractors. Earth Interior Design is a licensed contractor and handles all permit applications on your behalf.
Related cost guides
- BTO Renovation Cost Singapore (2026)
- Resale HDB Renovation Cost Singapore (2026)
- Kitchen Renovation Cost Singapore (2026)
Design ideas: 4 room HDB kitchen designs · 4 room HDB master bedroom designs
