Breaking down your renovation budget by room can make it easier to decide where to spend and where to save.
Typical Costs for Key Areas of a 3 Room HDB
| Area |
Typical Renovation Cost |
| Kitchen |
S$10,800 – S$22,300 |
| Bathroom |
S$4,200 – S$8,700 |
| Living & dining |
S$8,000 – S$18,000 |
| Bedroom |
S$3,500 – S$9,000 |
These are indicative costs. The final price depends on the size of the area, materials, amount of carpentry and whether additional electrical, plumbing or hacking works are required.
Kitchen Renovation Cost
3 Room Resale HDB Kitchen Renovation by Starry HomesteadThe kitchen is often one of the largest parts of a 3-room HDB renovation budget. A typical kitchen renovation can cost around S$10,800 to S$22,300, depending on the extent of carpentry, countertop material, tiling, plumbing and electrical work.
A basic kitchen renovation may focus on functional cabinets, a standard countertop and essential fittings. A more extensive renovation may include quartz or other premium countertops, additional storage, feature walls, upgraded hardware and changes to the existing kitchen layout.
If you are trying to control costs, consider whether you really need to change the kitchen layout. Moving sinks, plumbing points, gas points or electrical points can introduce additional labour and installation costs.
Bathroom Renovation Cost
3 Room BTO bathroom renovation by Luova Project ServicesBathroom renovations typically cost around S$4,200 to S$8,700 per bathroom.
The cost can include:
- Hacking and removal of existing tiles
- Waterproofing
- Wall and floor tiling
- Sanitary fittings
- Shower fittings
- Plumbing works
- Bathroom storage and vanity units
For resale flats, bathroom renovation costs may be higher if existing waterproofing, plumbing or tiles need to be replaced. Good quality floor tiles also matter in wet areas because they affect water resistance, slip resistance, and the overall finish, and some wet area works fall under renovation works that require HDB or BCA approval.
While bathroom fixtures can be changed relatively easily, waterproofing and wet works should be properly planned because mistakes can increase the actual cost of the bathroom renovation later.
Living and Dining Area Renovation Cost
3 Room BTO Living & Dining Room Renovation by Ovon DesignRenovating the living and dining area can cost around S$8,000 to S$18,000, depending on how much built-in work and customisation is required.
Common renovation works include:
- Flooring
- Painting
- Lighting
- TV consoles
- Feature walls
- Built-in storage
- Dining-area carpentry
For a 3-room flat, avoid adding built-in carpentry simply because there is available wall space. Every additional cabinet, console or feature can increase your renovation cost while making the space feel more crowded.
Bedroom Renovation Cost
3 Room BTO Bedroom Renovation by Zenith ArcBedroom renovation can cost around S$3,500 to S$9,000 per room, depending largely on the amount of carpentry required.
A basic bedroom renovation may only require painting, flooring, lighting and loose furniture. Adding a built-in wardrobe, study desk, storage cabinets or feature wall will increase the cost.
For smaller bedrooms, prioritise storage that solves a specific need rather than building cabinetry into every available space.
Master Bedroom With Walk-In Wardrobe
3 Room Resale HDB Wardrobe by Mr Designer StudioIf you want to create a walk-in wardrobe in the master bedroom, expect the renovation cost to increase. A master bedroom with a walk-in wardrobe can cost around S$6,000 to S$14,000, depending on the amount of carpentry and the materials selected.
Consider whether a full walk-in wardrobe is necessary for your lifestyle and storage needs. A well-planned built-in wardrobe may provide similar functionality while using less space and costing less.
Factors That Affect Your 3 Room HDB Renovation Cost
The renovation cost of two 3-room flats can differ significantly even when both have similar floor areas. These are some of the main factors that affect the final quotation.
1. Flat Age and Condition
The condition of a resale flat can have a major impact on your renovation budget. Older units may require more extensive hacking, electrical, plumbing or waterproofing works.
Always inspect the existing finishes and infrastructure before finalising your renovation budget.
2. Custom Carpentry
Carpentry can become a significant expense, particularly when you add kitchen cabinets, wardrobes, TV consoles, shoe cabinets, study desks and other built-ins.
Before commissioning custom carpentry, consider which storage solutions are genuinely necessary and where loose furniture could work instead.
3. Materials and Finishes
The materials you select can significantly change the total cost. For example, flooring, countertops, cabinetry laminates, tiles, sanitary fittings and hardware are available at different price points.
Your choice of interior design style can also influence the materials, finishes and amount of customisation required. Explore these 3-room BTO interior design styles for ideas that balance style and functionality.
Premium finishes can increase your budget substantially, particularly when they are used throughout the flat.
4. Electrical Works
Modern homes often require more power points, lighting, appliance connections and other electrical installations than older flats were originally designed for.
Older resale flats may also require rewiring or electrical upgrades. Discuss your current and future electrical needs with your Renovator before work begins.
5. Layout Changes
Changing the existing layout can involve additional hacking, masonry, plumbing, electrical and carpentry works.
If you are working with a limited renovation budget, keeping the existing layout where practical can reduce unnecessary costs.
Any renovation work requiring HDB or other approvals should also be checked before work begins.
6. Flooring
Flooring costs depend on the material, installation method and condition of the existing floor.
For resale flats, additional floor preparation or hacking may be required before new flooring can be installed. Choosing a more cost-effective flooring material, such as laminate flooring, can help reduce the overall renovation budget.
Some layout-related flooring works may also require HDB renovation permits and must follow HDB renovation guidelines, with permit fees typically around S$20–S$40 depending on the work scope, and referring to your official HDB floor plan for BTO or resale will help ensure compliance. Permit approval can take around 2 to 4 weeks, so homeowners should factor this into their renovation planning. Licensed contractors typically submit renovation plans to HDB for approval. Structural modifications may require both HDB and BCA approval, but homeowners should verify the exact regulatory requirements for their scope of work.
7. Timeline
Your renovation timeline can also affect costs. If you need work completed within a particularly short timeframe, there may be additional logistical or labour considerations.
Giving your Renovator a realistic timeline allows the different renovation stages to be planned and coordinated properly.
In Singapore, HDB renovation work is generally allowed on weekdays from 9:00 AM to 5:00 PM, so timelines should be planned around approved working hours.
How to Budget for a 3 Room HDB Renovation
Once you know your estimated renovation range, it helps to divide your budget according to the scope you actually need, and you can also compare this against overall 2026 renovation costs in Singapore across different property types.
Planning ahead helps prevent costly mistakes during renovations, especially when you are deciding what to prioritise first.
3 Room HDB Renovation Budget Guide
| Renovation Budget |
What It May Cover |
| S$35,000 – S$45,000 |
Basic BTO renovation with essential works |
| S$45,000 – S$60,000 |
More complete renovation with moderate customisation |
| S$60,000 – S$75,000 |
More extensive renovation or typical resale works |
| S$75,000+ |
Extensive resale renovation or premium finishes |
These ranges are intended as budgeting guides rather than fixed renovation packages. Your total renovation budget should also account for hidden costs such as delivery, disposal, permits, or appliance upgrades, and keep a buffer for unexpected costs that may come up during the renovation process.
Set Aside a Contingency Budget
It is sensible to keep an additional 10–20% of your renovation budget as a contingency.
For example, if you have allocated S$50,000 for your renovation, a 10–20% contingency would mean keeping another S$5,000 to S$10,000 available so your total budget covers not just quoted works, but also likely hidden costs and unexpected costs.
This is particularly important for resale flats, where issues may only become apparent after existing tiles, cabinetry or finishes are removed. Some homeowners also compare renovation loans separately when planning affordability.
5 Ways to Save on Your 3 Room HDB Renovation
A lower renovation budget does not necessarily mean compromising on quality. The key is to decide where your money will have the greatest impact.
1. Keep the Existing Layout Where Possible
Changing the location of kitchens, bathrooms, plumbing points and other fixed elements can increase labour and installation costs.
If your existing layout works for your lifestyle, keeping it can free up more of your budget for finishes and furniture.
2. Choose Practical Materials
You do not necessarily need premium materials throughout the entire flat.
Consider cost-effective alternatives that provide the appearance and functionality you want. For example, laminate finishes can provide a range of wood or stone-inspired looks without the cost of some natural materials.
3. Prioritise Carpentry
Custom carpentry can quickly increase the cost of a 3-room renovation.
Instead of building storage into every room, identify where built-ins are genuinely useful. Kitchens and wardrobes may deserve more of your carpentry budget, while some living-room storage can potentially be handled with loose furniture.
4. Compare Itemised Quotations
Do not compare renovation quotations based solely on the final price; instead, focus on how to compare detailed renovation quotations so you understand exactly what you are paying for.
Ask Renovators for detailed, itemised quotations so you can see exactly what is included. Check the specifications for materials, dimensions, fittings, installation and other works.
A quotation that appears cheaper may have fewer items included, so comparing the scope line by line gives you a more meaningful comparison.
5. Prioritise Essential Works
If your budget is limited, prioritise works that affect functionality, safety and long-term durability.
For example, it may make more sense to allocate your budget towards proper waterproofing, electrical works and kitchen functionality before adding decorative features such as elaborate feature walls or ceiling treatments.
What to Check Before Signing a Renovation Contract
Once you have selected a Renovator, review the quotation and contract carefully before making a commitment, using a checklist of must-do renovation contract fairness checks to protect yourself.
Check that the contract clearly states:
- The full renovation scope
- Materials and product specifications
- What is included and excluded
- Total renovation cost
- Payment schedule
- Expected completion timeline
- Warranty terms
- How additional works will be charged
- What happens if there are delays or disputes
Avoid relying on verbal promises. If something is important to your renovation, make sure it is included in the written quotation or contract.
Getting several detailed quotations can also help you identify differences in scope before deciding which Renovator to work with, especially when shortlisting from a list of CaseTrust-accredited interior design firms and renovation contractors.
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Frequently Asked Questions About 3 Room HDB Renovation Cost
How much does it cost to renovate a 3-room HDB flat?
A new or BTO 3-room HDB renovation typically costs around S$35,000 to S$55,000, while a resale 3-room renovation typically costs around S$45,000 to S$75,000.
The actual cost depends on the renovation scope, flat condition, materials, carpentry and whether layout or infrastructure changes are required.
Is a 3-room BTO cheaper to renovate than a resale flat?
Generally, BTO flats require less remedial work because they are newly completed. Resale flats may require additional hacking, electrical, plumbing and waterproofing works, which can increase the total renovation cost.
However, the condition of the individual flat and the scope of renovation are still important factors.
What is the most expensive part of a 3-room HDB renovation?
The cost varies depending on your renovation scope. Kitchen works and custom carpentry can represent a significant portion of the budget, while extensive resale works such as hacking, rewiring and plumbing can also increase costs.
How much contingency should I set aside for a 3-room HDB renovation?
Consider setting aside around 10–20% of your renovation budget as a contingency. This can help cover unexpected works or changes, particularly when renovating an older resale flat, and you should also plan time and budget for post-renovation defect checks and rectification.
How can I reduce the cost of a 3-room HDB renovation?
Keeping the existing layout, choosing practical materials, limiting unnecessary custom carpentry, prioritising essential works and comparing detailed itemised quotations can all help you manage your renovation budget.
Should I hire an Interior Designer or a Main Contractor?
Both options can be suitable depending on the scope of your renovation and how much design guidance you need.
An Interior Designer can provide design planning and project coordination, while a Main Contractor may be more suitable for homeowners with a straightforward renovation scope who already have a clear idea of what they want. Read more on our article about Interior Designers vs Contractors.
The important thing is to compare the services, scope and quotation rather than looking only at the headline price.
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