Updated 27 Sep 2026. Plan an HDB renovation around the approved work, permitted hours and handover dependencies, not a contractor’s headline promise of “eight weeks”. Before choosing a move-in date, establish which jobs can start, which must wait and what happens if a stage slips.
This guide focuses on HDB renovation execution. Condo and landed-home approval routes differ. For deciding how much cash you can commit after buying the home, use our separate renovation and move-in budget guide.
Confirm the scope and permit before work starts
HDB’s permit guidance requires a contractor from its Directory of Renovation Contractors. Work requiring a permit must wait for approval; permit-free work must still follow the relevant guidelines. The owner authorises the contractor’s electronic application and can check the granted permit.
Ask the contractor to mark each proposed job on the scope: permission required, relevant approval obtained, specialist needed and earliest permitted start. A submitted application is not an approved permit. Check that the approved plan matches what workers have been instructed to build.
HDB also identifies separate licensing requirements for electrical, plumbing, gas and window work. Ask who is doing each specialist job and verify the appropriate credentials. A renovation company handling the overall contract does not make every worker qualified for every task.
Use the actual HDB time limits
HDB’s current renovation information sets these periods and restrictions:
- General renovation: weekdays and Saturdays, 9am to 6pm; no work on Sundays or public holidays.
- Restricted noisy work: weekdays, 9am to 5pm; also excluded on the eves of New Year’s Day, Chinese New Year, Deepavali, Hari Raya Puasa and Christmas Day.
- Completion from permit grant: one month for existing blocks, three months for newly completed blocks, or two weeks for window-only work.
- Demolishing walls or removing wall/floor finishes: no more than three consecutive days.
- Written notice to neighbours within two units: at least five days before renovation; display the renovation notice throughout the works.
Check your actual permit and flat-specific conditions. If the programme no longer fits, contact HDB rather than assuming a contractor’s revised date extends permission. A furniture delivery date is not the same thing as the deadline for approved renovation work.
Schedule dependencies, not just trades
A useful programme shows what must be finished before the next stage starts. Ask the contractor to identify inspection, measurement, curing, fabrication and access dependencies relevant to your actual scope. Do not copy a generic week-by-week sequence from another home with different work.
| Stage | Question to resolve |
|---|---|
| Before access | Are the approvals, workers, protection and permitted working dates confirmed? |
| Before concealed work is covered | What inspection, testing, photographs or certification should be completed and retained? |
| Before fabrication | Who confirms final dimensions, appliance specifications, drawings and finishes? |
| Before delivery | Is the site ready, and who bears storage or repeat-delivery costs if it is not? |
| Before handover | Which defects, tests, documents and cleaning must be completed before acceptance? |
Keep an updated decisions list. An unanswered choice about a worktop, appliance or power point can affect more than one trade. Give each decision an owner and deadline, and obtain the price and timing consequences before approving a change.
For a family moving from a rental home, keep lease expiry and moving bookings visible on the same calendar. For a landlord, separate the hoped-for rental start from a home that is actually ready for occupation. Do not promise an incoming tenant a date based solely on an optimistic contractor estimate.
Tie payments to clear contractual milestones
Read the payment schedule alongside the works schedule. “Materials ordered” and “materials installed and checked” are different events. Ask what evidence supports each invoice and how variations are authorised. Keep receipts and payment acknowledgements with the signed scope.
CaseTrust’s renovation accreditation information describes a standard contract, milestone payments, written variations and a maximum 20% initial deposit under its schemes. These are scheme requirements, not a universal rule applying to every renovation contract. Verify the exact contracting entity’s accreditation and the terms and proof of any deposit protection.
For illustration, a household agrees a $40,000 works contract and a $4,000 written variation. If it has paid $30,000, the balance against the revised $44,000 contract total is $14,000. Whether that balance is presently due depends on the agreed payment milestones. The arithmetic alone does not establish that unfinished or disputed work must be paid for immediately.
Keep the contract total, approved variations, invoices, payments and remaining balance in separate columns. This catches duplicate claims and prevents a conversation about unfinished work from becoming confused with a different invoice.
Inspect the home before treating it as complete
Arrange a walkthrough against the agreed scope. Test doors, drawers, taps, supplied appliances and other items within the contractor’s scope. Record defects by location with photographs, the proposed remedy and an agreed response date. Obtain relevant warranties, manuals and completion records.
Consider a normal morning before deciding the family can move in. Are the bathrooms usable, routes clear, essential fittings secure and remaining work compatible with occupation? Ask the relevant contractor or qualified person about safety concerns rather than treating a visual check as technical certification.
If a disagreement arises, keep the signed documents, dated correspondence, invoices and defect evidence together. CaseTrust describes mediation arrangements under its schemes. The Singapore Courts’ eligibility guide includes renovation service contracts among potential small claims, subject to jurisdictional conditions. Check those conditions for the actual dispute; not every renovation claim belongs in that forum.
Sources and correction note
HDB’s permit and renovation-information pages, CaseTrust guidance and the Courts’ eligibility page were opened and checked on 27 September 2026. This is an execution checklist, not a permit or inspection. The cash example is hypothetical. This replacement removes incorrect work hours and permit-duration advice, unsupported cost/return tables, loan claims, an invented resale story and speculative policy changes.
Featured photograph: Choa Chu Kang Way, 31 October 2022, by Wzhkevin, via Wikimedia Commons, CC BY-SA 4.0, resized. HDB neighbourhood context, not a photograph of the renovation described.
