Resale HDB Renovation: What to Know

Plan a resale HDB renovation around the condition of the flat and the work your household actually needs. Decide what to retain, repair and replace before comparing quotations. A resale home does not automatically require a full strip-out, and its age alone does not establish which installations need replacement.

Start with an inspection and a written brief. Then ask your renovation team to explain the proposed scope, unresolved conditions, approval requirements and sequence of work. This guide helps you prepare those questions; it is not a condition assessment of your flat.

1. Make a retain, repair and replace list

Walk through the home with your designer or contractor when access is available. Photograph concerns and identify where further assessment is needed. Avoid covering up a problem before its cause has been investigated.

• Floors and walls: discuss visible damage, uneven surfaces and signs of moisture. Ask whether the proposed finish requires removal or preparation of what is already there.
• Kitchen and bathrooms: consider storage, access, existing fittings and the condition of surfaces and services.
• Electrical and plumbing: ask the appropriate qualified trades to assess condition and suitability for your intended use. Do not assume a photograph or the flat's age establishes safety.
• Doors, windows and built-ins: identify what functions well, what needs attention and what conflicts with your planned layout.

Keep “not yet assessed” as a separate category. It is more useful than treating an unknown condition as either safe to retain or certain to need replacement.

2. Check feasibility before committing to a layout

An open kitchen or larger bedroom may look appealing in a reference image, but that does not establish whether the same alteration is suitable for your flat. Ask the team to distinguish the existing condition from the proposed work and explain what must be checked.

HDB states that owners must engage contractors from its Directory of Renovation Contractors and ensure work follows its guidelines. Some works require permits and others do not. Read HDB's renovation responsibilities and use its building-work guidelines to discuss the exact proposal. Do not assume that an existing alteration proves a new change is permitted.

Confirm who checks feasibility, who handles required submissions and what needs to be resolved before work begins. The design firm's role and the contractor's role should be clear in your discussions and documents.

3. Compare renovation scope, not just package prices

Give each firm the same room-by-room brief and retain/repair/replace list. Ask for quantities, materials and exclusions so that differences between proposals are visible.

• Removal: which finishes and built-ins will be removed, and what disposal is included?
• Making good: what preparation and repairs follow removal, and which items cannot yet be priced?
• New work: what carpentry, finishes, fittings and installation are specified?
• Services: which electrical and plumbing changes have been included, and which need further assessment?
• Other costs: clarify protection, delivery, cleaning, tax treatment and allowances.

Illustrative comparison: a proposal that retains usable flooring and one that removes and replaces it cover different work. Compare the reasons and complete scope before treating the lower total as a better deal. Read our designer-selection checklist for questions to bring to each meeting.

Try the itemised renovation budget calculator to compare the work you plan to retain with the work you intend to add. Adjust quantities and add your own allowances for unpriced removal or repairs. Avoid counting bathroom work twice. The result is a planning midpoint estimate, not a condition assessment or a quotation.

4. Agree a process for unexpected findings

Some conditions may become clearer only after access improves or existing finishes are removed. Ask the contractor to document findings, explain the options and provide the price and timing implications before you approve additional work.

Keep a budget allowance for unresolved items, but choose it around your actual uncertainties rather than a universal percentage. Record which allowances are estimates, how they will be reconciled and which optional features you could defer. Keep furniture, appliances and temporary accommodation separate from the renovation quotation.

5. Plan around access and household arrangements

Confirm when the property will be available for inspection and work. If you are already living there, discuss whether the proposed scope can be staged and how usable facilities and safe access will be maintained. Do not assume remaining in the flat is practical during every type of renovation.

Ask for a schedule showing prerequisites, work stages and decisions needed from you. Coordinate material choices, approvals, fabrication, installation and deliveries. Agree who provides updates and how changes to the programme are recorded instead of relying on a generic completion promise.

6. Prepare for handover before work starts

Agree how completion checks, outstanding items and defects will be recorded. Confirm which product information, care instructions and warranty documents you will receive, and how to request follow-up work. Read the actual payment milestones and warranty terms rather than assuming they match another homeowner's contract.

Turn your ideas into a useful brief

Explore resale HDB portfolios and note the features you want to discuss. The free floorplan concept tool can help you explore styles and room needs, but AI images are not verified layouts or evidence that a building alteration is allowed.

When your priorities are clearer, request free interior designer matching. Review the consent explaining how your contact details and requirements are shared. You choose whether to engage a firm after discussing its proposal.

Official HDB sources checked on 29 September 2026 and linked above. Confirm current requirements and the condition of your own flat with the appropriate professionals before proceeding.