HDB Renovation Singapore
Planning an HDB renovation in Singapore starts with a clear idea of how you want your home to work. A good renovation should improve comfort, storage, movement and daily life while meeting HDB rules.
From a new BTO flat to an older resale home, each property needs a different plan. The right renovation team can guide the design, permits, materials and building work from start to finish. This guide covers HDB renovation services, renovation costs, rules, ideas and the full renovation process.
HDB Renovation Services in Singapore
Every HDB home has different needs. Flat age, size, layout and existing condition shape the renovation scope.
BTO Renovation
Resale HDB Renovation
Resale flats can need a wider scope. Old tiles, wiring, pipes, cabinets and bathroom fittings may need replacement. The design can also reshape the layout to suit a new family.
3-Room HDB Renovation
A 3-room flat benefits from smart space planning. Built-in storage, compact kitchen cabinets and flexible furniture can free up floor space without making rooms feel crowded.
4-Room HDB Renovation
A 4-room HDB renovation gives families more room to balance shared areas with private spaces. Careful carpentry and storage planning can help every room serve a clear purpose.
5-Room HDB Renovation
A 5-room flat creates more options for larger kitchens, dining spaces, work areas and custom storage. A clear design plan keeps these areas connected.
Executive Apartment Renovation
Executive Apartments offer more floor area but may involve a larger renovation scope. Space planning helps make use of the added room while keeping the home easy to maintain.
How Much Does HDB Renovation Cost in Singapore?
HDB renovation cost depends on the flat type, existing condition, materials and scope of work. Resale flats often cost more because they may need hacking, rewiring, plumbing upgrades and removal of old finishes.
| HDB Flat Type | BTO Renovation Cost | Resale Renovation Cost |
| 3-Room HDB | S$40,800–S$52,500 | S$55,000–S$68,300 |
| 4-Room HDB | S$50,000–S$60,000 | S$70,000–S$81,600 |
| 5-Room HDB | S$60,600–S$76,500 | S$80,800–S$98,900 |
These figures are market estimates. The final cost of HDB renovation in Singapore will depend on your layout, design choices, materials, carpentry needs and renovation scope.
Renovation Cost by Work Scope
Different trades can change the total budget. Common cost areas include:
- Carpentry: Kitchen cabinets, wardrobes, shoe cabinets and storage units.
- Kitchen renovation: Cabinets, worktops, tiles, plumbing and electrical points.
- Bathroom renovation: Hacking, waterproofing, tiles, sanitary fittings and plumbing.
- Flooring: Vinyl, tiles and other floor finishes.
- Electrical work: New power points, lighting points, wiring and distribution board work.
- Plumbing: New or replaced pipes, water points and sanitary connections.
- Painting: Wall preparation, paint and labour.
- Hacking: Removal of approved walls, tiles, floors and existing fixtures.
Ask for an itemised quotation so you can see what each part of the renovation covers.
HDB Renovation Rules and Permits
HDB renovation in Singapore work must follow current housing rules. Some works need approval before they start, while other works can proceed without a permit if they meet HDB guidelines.
HDB Renovation Permits
HDB requires prior written approval for certain renovation works. Your renovation contractor in Singapore should check the proposed scope and submit the required application before work begins.
Flat owners must engage a contractor listed in HDB’s Directory of Renovation Contractors for renovation work.
Hacking Rules
HDB requires written approval for partial or complete demolition and hacking of walls. Structural walls, columns, beams and slabs cannot be removed. Never begin hacking before the required approval is in place.
Plumbing and Waterproofing
Noise and Working Hours
General renovation works can take place from 9 am to 6 pm from Monday to Saturday. Renovation work cannot take place on Sundays and public holidays.
Noisy work, such as wall demolition, tile cutting, drilling and removal of wall or floor finishes, can take place from 9 am to 5 pm on weekdays. HDB does not allow these noisy works on Saturdays, Sundays or public holidays.
BTO vs Resale HDB Renovation
BTO and resale flats often need different renovation plans.
| Area | BTO | Resale HDB |
| Existing condition | New | Condition varies with age |
| Hacking | Often limited | May require more removal work |
| Plumbing | Newer systems | Older pipes may need replacement |
| Electrical | Newer system | Rewiring may form part of the scope |
| Flooring | May need new finishes | Existing flooring may need removal |
| Carpentry | New custom work | Old carpentry may need removal |
| Renovation scope | Often design-led | May include repair and replacement |
| Budget | Often lower | Often higher for full renovation |
| Timeline | Around 6–10 weeks | Around 10–12 weeks for common flat sizes |
A site assessment gives a clearer picture of the work your flat needs.
4-Room HDB Renovation Ideas That Make Space Work
A good 4-room HDB renovation in Singapore should create useful space rather than fill every wall.
Living Room and Kitchen
Bedrooms and Bathrooms
Storage, Carpentry and Lighting
Use carpentry to solve a clear need. Shoe cabinets, wardrobes and kitchen storage can reduce clutter. Layer ceiling lights, task lights and feature lights to support different activities.
Good space planning should leave clear paths through the home and make each room easy to use.
How to Choose a Renovation Contractor in Singapore
The right renovation contractor in Singapore should offer more than an attractive design. Check the team, paperwork and project process before signing.
- Confirm that the contractor appears in HDB’s Directory of Renovation Contractors.
- Review completed HDB renovation projects.
- Check relevant business and industry credentials.
- Compare itemised quotations instead of total prices alone.
- Confirm what the renovation scope includes and excludes.
- Ask for a project schedule and key milestones.
- Read the warranty terms in writing.
- Check genuine client reviews across trusted platforms.
- Understand the payment schedule before work starts.
- Find out who will manage your project and who you should contact during renovation.
A clear contract protects both sides and reduces confusion during the project.
Our HDB Renovation Process
A structured process keeps design choices, approvals and building work on track.
1. Initial Consultation
The project starts with your needs, preferred layout, design goals and renovation scope.
2. Site Assessment
The team inspects the flat, takes measurements and checks existing conditions that may affect the work.
3. Space Planning and Design
The designer shapes the layout around movement, storage and daily use. Material and design choices then bring the plan together.
4. Quotation
5. Material Selection
You select flooring, laminates, worktops, tiles, paint and other finishes based on the approved design.
6. HDB Approvals
7. Renovation Works
8. Quality Checks and Handover
The team checks the completed work, addresses agreed defects and walks through the finished home with you before handover.
Why Choose Us for Your HDB Renovation?
Choosing the right renovation team can shape your entire experience. We combine thoughtful design, skilled workmanship and organised project management to create HDB homes that suit your needs.
HDB-Registered Renovation Contractor
Our HDB registration shows that we meet the requirements for carrying out renovation works in HDB flats. We follow relevant guidelines and manage required renovation applications before approved work starts.
CaseTrust Accredited
Our CaseTrust accreditation reflects our commitment to fair business practices, clear communication and responsible service. Clients receive transparent information about their renovation scope, agreements, payments and key project details.
Experienced Renovation Team
Our team brings years of renovation experience to each project. We understand HDB layouts, space limits, materials and practical design needs, helping homeowners make informed choices for their homes.
100+ Completed Projects
Workmanship Warranty
Complete Project Management
We coordinate each renovation stage, from consultation and space planning to material selection, approvals, construction and final checks. One organised process keeps responsibilities clear and helps reduce project confusion.
Get an HDB Renovation Quote
Your home deserves a renovation plan built around the way you live. Start with a consultation to discuss your flat, design needs, renovation scope and project timeline.
Get a clear plan before renovation begins and turn your HDB flat into a home that works for everyday life.
Frequently Asked Questions
How much does HDB renovation cost in Singapore?
Costs vary by flat type and scope. Current 2026 market estimates place a full BTO renovation from around S$40,800 for some 3-room projects, while larger or resale renovations can cost much more.
How long does an HDB renovation take in Singapore?
Current market data suggests around 6–10 weeks for common BTO flat sizes and around 10– 12 weeks for many resale projects. Complex work can take longer.
Do I need an HDB renovation permit?
Some renovation works require HDB approval. Your registered renovation contractor in Singapore should check the scope and apply for required permits before work begins.
What renovation works require HDB approval?
Examples include demolition or hacking of walls and certain replacement works. Requirements depend on the type of work and flat conditions.
How much does a 4-room HDB renovation cost?
Current 2026 market estimates place a 4-room BTO renovation around S$50,000–S$60,000 and a resale renovation around S$70,000–S$81,600. The final quotation depends on scope and materials.
What is the difference between BTO and resale HDB renovation?
How do I choose the right renovation contractor in Singapore?
Check HDB registration, completed work, credentials, reviews, quotations, warranty terms and project management arrangements.
What should I check before hiring an HDB renovation contractor?
Review the contract, work scope, payment terms, materials, timeline, warranty and person responsible for your project.
What is included in an HDB renovation quotation?
A good quotation should list the agreed works, materials, quantities and costs. It should also state exclusions where they apply.
Can an interior design firm manage the complete HDB renovation process?
Yes. A full-service team can manage design, space planning, material selection, approvals, contractors, renovation work and handover when these services form part of the agreed scope.