Guides / HDB resale
How to read HDB resale transaction data before making an offer
A single resale price is a data point. A useful offer view comes from a small, comparable set of transactions, the remaining lease and the cash you may need outside your loan.
Begin wide, then narrow the comparison
Use estate-level HDB data to understand the market, then make the comparison more specific. The most helpful transactions usually share the same flat type, a similar size, a nearby location and a similar storey range. A high-floor unit with an unobstructed view is not a clean comparison for a low-floor unit in the next block.
PropertySignals is useful at both levels: start in HDB Insights for the broader estate signal, then use Search and Estate Explorer to inspect the transactions and nearby supply behind it.
The five checks that make a transaction comparable
| Check | Why it matters |
|---|---|
| Flat type and size | Compare like with like first. PSF is a useful normaliser, but it does not erase layout, age or flat-model differences. |
| Street and nearby blocks | Walkability, noise, orientation, schools and renovation condition can vary inside the same town. |
| Storey range and outlook | Floor level and views can explain a premium. Treat them as part of the comparison, not an afterthought. |
| Remaining lease | A similar-looking transaction can carry a different financing and CPF profile when the remaining lease differs. |
| Recency | Recent transactions better reflect the current market. Older sales help provide context, but should not anchor an offer by themselves. |
Use PSF as a range, not a verdict
PSF helps put different-sized homes on a common scale. It is most meaningful after the five checks above. Build a range from the closest comparables, note the reason for outliers, and then decide where the target unit sits within that range. Do not assume the highest PSF is the right benchmark simply because it is recent.
For a fuller purchase decision, pair the transaction view with the ownership trade-offs in HDB vs condo in Singapore and the lease context in Freehold vs leasehold.
Why valuation and COV still matter
For an HDB resale purchase, buyer and seller agree on the price before the buyer submits a Request for Value after receiving the Option to Purchase. HDB states that a valuation is needed where the buyer is taking an HDB loan or using CPF savings. If the agreed price exceeds the valuation, the difference can create cash-over-valuation exposure that is not covered by the valuation amount.
This is why a transaction range is planning input, not a guarantee of the valuation. Keep the cash position separate from the headline price and confirm the financing details with the relevant lender, HDB and CPF materials for your circumstances.
HDB's resale process also states that the option period is 21 calendar days, the option fee is capped at S$1,000, and the combined option and exercise fees are capped at S$5,000. Those are process limits, not a substitute for reviewing the contractual and financing implications of a particular purchase.
Read remaining lease alongside price
Remaining lease is not just an investment label. It can affect loan tenure, CPF use and future buyer demand. Two flats at a similar PSF can therefore have very different affordability or exit considerations. Check the exact lease details before you decide whether a lower price is a bargain or simply reflects a different ownership constraint.
Use the 99-year leasehold guide for the ownership framework, then use the official CPF housing-usage calculator and your lender's assessment for the numbers that apply to you.
A practical offer checklist
- Choose recent transactions matching the flat type and a similar size.
- Explain differences in floor, condition, outlook and location before using the price as a comparable.
- Review the remaining lease with your intended loan and CPF use in mind.
- Set aside a separate cash buffer for costs and any potential valuation gap.
- Recheck the latest transactions before exercising the option.
Frequently asked questions
Should I compare HDB resale homes only by PSF?
No. PSF is a starting point. Flat type, size, floor, outlook, precise location, condition, remaining lease and recency all change how comparable a sale is.
Does a recent transaction guarantee the valuation of my flat?
No. It is useful market context, but valuation and loan or CPF treatment depend on the details of the property and the financing arrangement.
What is COV?
Cash-over-valuation is the potential cash difference when an agreed resale price is above the relevant valuation. Confirm how it affects your purchase with the appropriate official bodies and your lender.