Quick Answer Start planning your BTO renovation two to three months before key collection. Shortlist and appoint an HDB-registered contractor, finalise your layout and budget, and check your block’s specific HDB renovation guidelines. On key collection day, set up your SP Services account, then inspect for defects and report them to the Building Service Centre within 30 days and before renovation starts. Once defects are logged, your contractor can apply for HDB permits and begin works, which must be completed within three months of the permit date.
Collecting the keys to your first BTO flat is one of the most exciting moments for any Singaporean homeowner. After years of waiting, you finally have a blank canvas. But the weeks around key collection are also when many first-time owners make costly mistakes, from rushing into a renovation package to missing the defects reporting window.
This BTO renovation checklist walks you through exactly what to do before, during and after key collection, so your renovation starts smoothly and you can move in on schedule. It is based on HDB’s own guidance and our decade of experience as an HDB-licensed contractor at Han Yong.
Your BTO Renovation Timeline at a Glance
Most moderately renovated BTO flats are ready for move-in about 12 to 16 weeks after key collection.
Before Key Collection: Planning Checklist
HDB itself recommends that you start thinking about your renovation theme and sourcing for a contractor before your key collection date. The more decisions you make early, the faster your renovation can start once the keys are in hand.
1. Set a realistic renovation budget
Start with the total amount you can comfortably spend, including furniture and appliances. For 2026, a full renovation of a 4-room BTO typically costs about $50,000 to $62,000, while a 3-room BTO is around $36,000 to $52,000. Our detailed HDB renovation cost breakdown shows where the money goes.
Remember that bank renovation loans are capped at six times your monthly income or $30,000, whichever is lower, and CPF cannot be used for renovation. Plan your cash flow accordingly and keep a 10% contingency.
2. Decide what you actually need
Before looking at mood boards, list how you will use the home. Do you work from home? Plan to have children soon? Cook daily or rarely? Your answers decide whether you need a proper study, an enclosed kitchen, extra storage or a flexible spare room.
- Number of bedrooms you will actually use as bedrooms
- Storage needs (wardrobes, shoe cabinets, store room shelving)
- Kitchen style: open concept or enclosed
- Work-from-home space
- Number and placement of air-conditioners
- Power points for appliances, TV, routers and charging
3. Choose your design style
Collect photos of homes you like and note common elements: colours, materials, lighting and furniture shapes. Our bedroom themes for homeowners and living room projects are a good starting point. Keep the style consistent across the home so the flat feels cohesive.
4. Check your block’s specific renovation guidelines
Every BTO project has its own layout details, such as which walls are reinforced concrete and which are lightweight drywall. HDB provides an e-service that shows the renovation guidelines and restrictions specific to your BTO project and block. Review this with your contractor before finalising any layout changes.
5. Shortlist and appoint an HDB-registered contractor
Only contractors listed in the HDB Directory of Renovation Contractors can submit renovation permit applications on your behalf. When comparing contractors, look for:
- A valid HDB licence and a track record of BTO projects
- Itemised quotations rather than lump-sum packages
- A clear timeline and milestone-based payment schedule
- Responsiveness and willingness to suggest practical alternatives
- Real photos of completed projects, not only 3D renders
Our article on compliance and certification for renovation contractors explains why licensing matters.
6. Get your floor plan and finalise the layout
Your BTO floor plan is available from HDB. Use it to plan carpentry, furniture placement, lighting points and air-conditioner positions with your contractor. Locking the layout before key collection lets carpentry measurements and fabrication start sooner.
Key Collection Day Checklist
Key collection for BTO flats takes place at HDB Hub. Bring your NRIC, any remaining payments and supporting documents listed in your appointment letter. Once you have your keys, tick off these tasks:
- Set up your SP Services utilities account. All homeowners must open one, regardless of electricity retailer. You can do it at the SP Services Customer Service Centre at HDB Hub right after key collection, online or through the SP Utilities App. A security deposit is required.
- Check your insurance. If you took an HDB housing loan, you must be covered by HDB Fire Insurance. If you use CPF for monthly instalments, the Home Protection Scheme is compulsory. Consider home content insurance to protect your renovation.
- Visit the flat with your contractor. Take full measurements and photos of every room, including ceiling heights, window sizes and existing power points.
- Note the features already provided. Check whether your flat came with Optional Component Scheme items such as vinyl strip flooring, internal doors or sanitary fittings, so you do not pay to replace them unnecessarily.
Defects Inspection Checklist (First 30 Days)
All new BTO flats come with a one-year Defects Liability Period starting from your key collection date. However, HDB asks owners to report all defects within 30 days of key collection and before renovation works begin. Once renovation starts, it becomes difficult to tell whether a crack or chip was caused by HDB’s building contractor or your renovation contractor.
What to bring
- Painter’s tape or sticky notes to label defects
- A torch and a spirit level
- A coin or marble to tap tiles and test floor level
- Your phone for photos and notes
- A printed room-by-room checklist
What to check
- Walls and ceilings: Cracks, uneven paint, stains and dampness
- Floors: Hollow tiles (tap to listen for a hollow sound), chipped tiles, uneven surfaces
- Doors and windows: Smooth opening and closing, gaps, damaged hinges and locks
- Bathrooms: Water ponding, slow drainage, leaking taps and WC flushing
- Electrical: Test every power point and switch; check the DB box
- Household shelter: The steel door should close and lock properly
Slight colour variations in tiles or timber flooring and small differences in grout width are normal and not considered defects. Submit your rectification request by scanning the QR code in your Welcome Kit or through the Building Service Centre (BSC) for your project. Repair works usually take less than two weeks, so coordinate the schedule with your contractor.
Ready to Recreate Your Living Space? Book an appointment today! Get a Customised Estimate →
HDB Rules Every BTO Owner Must Know
New flats come with a few restrictions that catch many first-time owners by surprise. Knowing them before you finalise your design saves both time and money.
The 3-year bathroom tile rule
For newly built flats, you cannot remove the original wall and floor finishes in bathrooms and toilets for three years. This protects the waterproofing layer. If you want a new look, the usual solution is to overlay new tiles on top of the existing ones. Our HDB toilet makeover essentials and common toilet upgrading mistakes explain the options.
Hacking walls needs a permit
Any demolition or alteration of walls requires HDB’s approval, and reinforced concrete walls generally cannot be touched. Your BTO’s internal partitions are typically drywall, which has its own rules. Read our full guide on HDB renovation permits before planning layout changes.
Renovation hours and deadlines
- General renovation works: Monday to Saturday, 9am to 6pm
- Noisy works such as hacking or tile removal: Monday to Friday, 9am to 5pm only
- No renovation on Sundays and public holidays, and no noisy works on the eve of major public holidays
- Approved works in new flats must be completed within three months of the permit date
Drilling and fixtures
BTO drywalls are designed to hold wall cabinets and TVs using the correct anchors, and HDB provides sample anchors in your household shelter. Avoid drilling where concealed electrical wiring runs. Never hack, drill indiscriminately or tamper with the walls, floor, ceiling or steel door of the household shelter.
During Renovation: Protect Your New Flat
Once works begin, a few small steps prevent damage and disputes:
- Ask your contractor to cover uPVC doors and handles with cardboard or bubble wrap
- Cover the ceiling smoke detector (Home Fire Alarm Device) with plastic to keep out dust, and remove the cover once works are done
- Ensure your contractor notifies neighbours before work begins
- Make sure debris is not thrown into refuse chutes or floor traps
- Visit the site weekly to check progress against the agreed timeline
After Renovation: Handover Checklist
- Inspect every carpentry piece for alignment, hinge function and finish
- Test all lights, power points and switches
- Check for paint touch-ups and silicone finishing in wet areas
- Run water in bathrooms and the kitchen to check drainage and leaks
- Confirm warranty terms for carpentry, electrical and waterproofing works
- Arrange a professional post-renovation clean before furniture delivery
How Han Yong Helps BTO Owners
At Han Yong, we have helped Singapore families transform new flats into homes for over a decade. As an HDB-licensed contractor (licence no. HB-02-0289A), we handle permit applications, coordinate all trades and keep you updated throughout. Our four-step process (Consult, Propose, Develop and Reveal) gives you an itemised Letter of Agreement, a realistic timeline and a clear payment schedule before any work starts.
Browse our HDB renovation projects, our kitchen renovation work and our room designer services for ideas, or read our master bedroom design mistakes before planning your bedrooms.
Sign-up to our Four-Step Property Renovation Plan Today! Book a BTO consultation before your key collection. Get a Customised Estimate →
Frequently Asked Questions
When should I start planning my BTO renovation?
Start planning about three to six months before key collection, and appoint your contractor one to two months before. HDB recommends sourcing for a contractor before your key collection date so works can begin soon after you get your keys.
Can I start renovation immediately after key collection?
You should complete your defects inspection and report defects to the Building Service Centre first. HDB asks owners to report defects within 30 days of key collection and before renovation begins, and permit-required works can only start after HDB approval.
How long does a BTO renovation take?
Most BTO renovations take about 8 to 10 weeks of actual works. Including planning, defects rectification and permits, many owners move in around 12 to 16 weeks after key collection. HDB requires approved works in new flats to be completed within three months of the permit date.
Can I hack the bathroom tiles in my new BTO?
No. HDB does not allow removal of original wall and floor finishes in bathrooms and toilets of newly built flats for three years. You can overlay new tiles on the existing ones instead, subject to HDB’s thickness limits.
Do I need a permit to install air-conditioners in my BTO?
Generally no. Flats built after 1 January 1994 have a 40-amp main switch with higher electrical loading, so no HDB permit is needed for air-conditioner points. Installation must still be done by a BCA-trained air-conditioner installer.
What is the Defects Liability Period for BTO flats?
New BTO flats come with a one-year Defects Liability Period starting from the key collection date. Defects should still be reported within the first 30 days and before renovation so responsibility for repairs is clear.
