Renovating a 3-room HDB flat in Singapore typically costs between $30,000 and $70,000. That’s a wide range – and for good reason. Your final bill depends on your flat’s condition, the materials you choose, and how much work needs doing. Some homeowners spend less. Others spend more. Knowing what drives costs helps you plan better.
Many homeowners feel lost when they get their first contractor quote. The numbers look big. The line items feel unclear. And it’s hard to know if you’re getting a fair deal or paying too much. This happens because renovation pricing isn’t standard. Every flat is different, and every contractor prices things differently.
In this guide, you’ll learn what each part of a renovation actually costs. You’ll see which items eat the most budget. You’ll also find out what most quotes leave out – and how to avoid nasty surprises later.
Cost Breakdown by Flat Condition
Your flat’s condition is the single biggest factor in renovation cost.
A brand-new BTO flat needs less work. The walls are clean. The pipes are new. You mainly focus on adding your own finishes. Costs for a new BTO typically start around $30,000 to $45,000 for a basic to mid-range reno.
A resale flat costs more to renovate. Old tiles, outdated wiring, and worn plumbing all need attention. Resale renovations often run from $45,000 to $70,000 or more. The older the flat, the more hidden work tends to appear once hacking begins.
| Flat Condition | Estimated Renovation Cost |
| New BTO (basic finish) | $30,000 – $40,000 |
| New BTO (mid-range) | $40,000 – $55,000 |
| Resale (light refresh) | $40,000 – $55,000 |
| Resale (full renovation) | $55,000 – $75,000+ |
These figures cover standard work. They don’t include appliances, air-conditioning units, or furniture.
Core Component Cost Drivers
Most of your renovation budget goes toward five main categories. Understanding each one helps you see where your money is going – and where you can adjust.
Carpentry & Cabinets (30%-45% of Budget)
Carpentry is almost always the largest single cost in a 3-room HDB renovation.
This includes your kitchen cabinets, wardrobe, TV feature wall, shoe cabinet, and any built-in storage. Custom carpentry costs more than modular options. The wood material grade also makes a big difference. Laminate is affordable. Solid wood or high-gloss finishes cost significantly more.
For a 3-room flat, carpentry can run from $12,000 to $25,000 or more. Homeowners who want lots of built-in storage tend to land at the higher end. Keeping carpentry lean is one of the fastest ways to bring your total bill down.
Electrical Rewiring & Plumbing (20%–25% of Budget)
Electrical and plumbing work is non-negotiable in older resale flats.
Flats more than 20 years old often need full rewiring. Old wiring can’t handle modern appliances safely. New power points, circuit breakers, and lighting are part of this cost. Expect to pay $4,000 to $8,000 for a full electrical upgrade in a 3-room flat.
Plumbing costs cover pipe replacement, new water points, and drainage work. This matters most in kitchens and bathrooms. Budget around $2,000 to $5,000 for plumbing, depending on scope. Cutting corners here causes bigger problems later.
Tiles & Masonry (15%–20% of Budget)
Tile costs depend on the tile size, type, and how much hacking is needed.
Large-format tiles cost more to buy and lay. Imported tiles from Italy or Spain add significant cost. Local or regional tiles give a cleaner budget. For a 3-room flat, tiling a kitchen and two bathrooms typically runs $5,000 to $10,000.
Masonry work includes tile laying, screeding, and wall plastering. These are labour-intensive jobs. They take time and skill. Rushing this stage causes cracked or uneven tiles later.
Demolition & Hacking
Demolition is usually charged separately from the main renovation quote.
Hacking old tiles, removing walls, and clearing debris all cost money. For a 3-room flat, expect to pay $1,500 to $4,000 for hacking work. The more you remove, the higher this cost climbs. HDB also requires permits for certain hacking work. Your contractor should handle this.
Some contractors bundle hacking into their overall quote. Always check. If it’s not listed, ask before you sign.
Painting & Finishing
Painting is one of the most affordable parts of a renovation – but it matters.
A full interior repaint for a 3-room flat costs around $1,500 to $3,000. The price depends on wall condition, ceiling height, and number of coats. Premium paints cost more but last longer and clean easier. Finishing work also covers skirting, doors, and hardware. These small items add up to $1,000 to $3,000 depending on your choices.
Hidden Costs Often Excluded from Contractor Quotes
Most renovation quotes don’t include everything you need to move in.
This is where budgets get blown. A quote looks reasonable. Then the add-ons arrive. These four items are almost always excluded unless you ask specifically.
Air-Conditioning Units
Air-conditioning is rarely included in renovation quotes.
A standard split-unit system for a 3-room flat costs $2,500 to $4,500 for supply and installation. This depends on the brand and number of units. Brands like Daikin, Mitsubishi, and Panasonic are popular in Singapore. Servicing contracts add ongoing cost too. Budget for this separately.
Bathroom Waterproofing
Waterproofing is often listed as an optional add-on – but it’s essential.
Poor waterproofing causes water seepage. This damages your floor below and creates disputes with your downstairs neighbour. Proper bathroom waterproofing costs $500 to $1,500 per bathroom. Don’t skip this. HDB actually requires waterproofing for bathroom floor hacking. Check that your quote includes it.
Administrative Fees
Renovation permits and HDB fees are not part of a contractor quote.
HDB charges an application fee for renovation permits. Fees vary by work type but typically range from $15 to several hundred dollars depending on scope. Some contractors help submit applications but may charge a handling fee. Factor in $200 to $500 for admin costs.
Appliances & Move-In Furniture
Appliances and furniture are always your own separate cost.
A washing machine, refrigerator, oven, and hood alone can run $3,000 to $8,000. Add a dining table, sofa, and bed frame, and you’re easily looking at another $5,000 to $15,000. Many homeowners forget this until move-in day. Plan your full move-in budget early – not just the renovation cost.
Smart Budgeting Tips
Budgeting well from the start prevents regret later.
A renovation budget has two parts: what you spend and what you protect. Most people focus only on spending. The smarter move is to plan both.
Prioritize Wet Areas
Kitchens and bathrooms are the highest-risk zones for cost overruns.
These areas involve waterproofing, tiling, plumbing, and electrical work all at once. Problems here are expensive to fix later. Spend more here and less on cosmetic areas like feature walls or fancy light fittings. A solid wet area renovation protects your flat for 15 to 20 years.
Opt for Tile Overlays
Tile overlay means laying new tiles over existing ones – without hacking.
This saves $2,000 to $5,000 in hacking and disposal costs. It’s allowed in some areas under HDB rules. Not all areas qualify, so check with your contractor first. The floor level rises slightly, which can affect door clearances. It’s a good trade-off when the existing tiles are still structurally sound.
Keep a Contingency Fund
Set aside 10% to 15% of your total budget for unexpected costs.
Once hacking starts, hidden problems often appear. Rotted subfloors. Leaking pipes. Old wiring that fails inspection. These can’t always be predicted. A contingency fund keeps your project moving without panic. On a $50,000 renovation, that means keeping $5,000 to $7,500 in reserve.
Check Contractor Qualifications
Hire only licensed renovation contractors registered with HDB.
Unlicensed contractors may offer lower prices. But they can’t apply for HDB renovation permits. Work done without permits creates problems when you sell your flat. Always verify a contractor’s HDB registration. Check reviews and ask for past project photos. A good contractor saves you money through proper planning – not just a low quote.
Tips to Lower Your 3-Room Renovation Bill
You can meaningfully reduce renovation costs without sacrificing quality.
The key is making smart choices early. Changing your mind mid-renovation costs more than making the right decision from the start.
Go Modular Instead of Custom
Modular carpentry costs 20% to 40% less than fully custom built-ins.
Modular systems from brands like IKEA, Häfele, or local modular suppliers give clean results at lower cost. They’re not as flexible as custom carpentry. But for wardrobes, shoe cabinets, and kitchen bases, modular works well. Save custom carpentry for areas where it truly matters – like your kitchen top or a statement wardrobe.
Leverage HDB Schemes
HDB offers grants and schemes that can reduce your overall renovation spend.
The HDB Enhancement for Active Seniors (EASE) programme subsidises home modifications for elderly residents. The Home Improvement Programme (HIP) handles certain upgrading works for eligible flats. These schemes don’t cover full renovations. But if your flat qualifies, you can avoid paying for specific work out of pocket. Check your eligibility on the HDB website before you finalise your renovation plan.
Frequently Asked Questions
How Much Does It Cost to Renovate a 3-Room HDB?
A 3-room HDB renovation in Singapore typically costs $30,000 to $70,000.
New BTO flats with basic finishes cost less – usually $30,000 to $45,000. Resale flats requiring electrical, plumbing, and tile work often run $50,000 to $70,000 or more. The exact cost depends on materials, scope, and contractor rates.
How Much Renovation Cost for a 3-Room HDB Flat?
The average renovation cost for a 3-room HDB flat ranges from $35,000 to $60,000 for most homeowners.
This covers carpentry, tiling, painting, electrical, and plumbing work. It doesn’t include air-conditioning, furniture, or appliances. Those add another $8,000 to $20,000 depending on your choices.
What Is a Realistic Renovation Budget?
A realistic budget for a 3-room HDB renovation is $45,000 to $60,000 all-in.
This includes the main renovation works, some furniture, basic appliances, and a contingency buffer. Going below $30,000 often means skipping important works or choosing very basic materials. Be honest about your priorities before you lock in a number.
How Do Singaporeans Afford Renovations?
Most Singaporeans use a combination of savings, CPF, and renovation loans.
Many homeowners save for one to two years before renovating. Others take a bank renovation loan to spread the cost over three to five years. Some use CPF OA funds for specific eligible costs. Planning your financing before you start avoids stress during the project.
Can I Use CPF to Pay for Renovation?
CPF Ordinary Account funds can be used for renovation – but only for specific items.
Eligible items include built-in wardrobes, kitchen cabinets, and electrical fittings. You can’t use CPF for furniture, appliances, or general painting. The withdrawal limit depends on your CPF balance and the type of property. Check directly with CPF Board for your specific eligibility.
What Is the Most Expensive Part of a House Renovation?
Carpentry is usually the most expensive part of a home renovation in Singapore.
Built-in cabinets, wardrobes, and kitchen joinery can take up 30% to 45% of your total budget. Wet area work – bathrooms and kitchen tiling plus plumbing – comes in second. These two categories often account for more than half your renovation spend.
How Much Does It Cost to Renovate a Kitchen in Singapore?
Kitchen renovation in Singapore typically costs $8,000 to $20,000 for an HDB flat.
This includes kitchen cabinets, countertop, tiling, plumbing, and electrical work. A basic laminate kitchen sits at the lower end. Solid surface countertops and full-height cabinets push costs higher. Kitchen hood and hob are usually quoted separately.
How Much Does It Cost to Renovate a Bathroom in an HDB in Singapore?
Bathroom renovation in a Singapore HDB flat typically costs $4,000 to $10,000 per bathroom.
This covers hacking, waterproofing, tiling, sanitary fittings, and plumbing. A basic toilet with standard fittings costs less. A larger bathroom with premium tiles and rain shower fittings costs more. Waterproofing alone adds $500 to $1,500 but is essential.
Can I Pay in Instalments for Renovation?
Yes, most homeowners pay in stages based on project milestones.
A typical payment schedule looks like this: 20% to 30% upfront, then payments tied to hacking completion, carpentry delivery, and final handover. Never pay the full amount upfront. Always get the payment schedule in writing before work begins.
Which Bank Is Good for a Renovation Loan in Singapore?
DBS, OCBC, and UOB are among the most commonly used banks for renovation loans in Singapore.
Most banks offer renovation loan rates between 3% and 5% per annum. Loan tenures typically run one to five years. The maximum loan amount is usually six times your monthly income or $30,000, whichever is lower. Compare interest rates and processing fees before you decide.
Conclusion
Renovating a 3-room HDB flat costs between $30,000 and $70,000 depending on condition, scope, and materials. The biggest cost drivers are carpentry, wet area work, and electrical or plumbing upgrades. Understanding these early helps you build a realistic budget – not an optimistic one.
Hidden costs catch many homeowners off guard. Air-conditioning, waterproofing, admin fees, and furniture can add $15,000 to $25,000 on top of your renovation quote. Always ask your contractor what’s excluded. Always set aside a 10% to 15% contingency buffer before work begins.
We at Singapore Home Renovation Services help 3-room HDB homeowners plan and renovate with full cost transparency. We walk you through every line item before you commit to anything. If you’re ready to get a clear and honest renovation quote, reach out to us today. We’ll help you get the home you want – without the budget surprises.
