
At a glance
- Who asks for it
- The buyer, by the next working day after the OTP is granted
- Fee
- $120 including GST, paid by the buyer
- Result
- Usually within 10 working days; valid for 3 months
- What it caps
- CPF use and the HDB or bank loan (75% of the lower of price or value)
- COV
- Price minus value, paid in cash only
How HDB valuation works
HDB valuation is an independent value placed on a resale flat that sets how much CPF and housing loan the buyer can use. The buyer asks for it through a Request for Value after the seller grants the Option to Purchase, and pays HDB $120. If an inspection is needed, the appointed valuer contacts the seller to arrange it. We checked these rules on HDB’s pages on 12 October 2026.
The value matters because two caps depend on it. CPF use is limited to the lower of the price and the value (pro-rated for older flats with shorter leases), and the housing loan, whether from HDB or a bank, is up to 75% of the lower of the two. A low valuation shrinks both at once.
| Item | Rule |
|---|---|
| Who files | Buyer, on My Flat Dashboard (or their agent) |
| When | By the next working day after the OTP is granted |
| Fee | $120 including GST |
| Inspection | Valuer arranges it with the seller |
| Result | Usually within 10 working days, by email |
| Validity | 3 months; both resale application portions must go in within that time |
| Cash-only buyers | No Request for Value needed |
When the seller and buyer get the number
The valuation arrives during the 21-day option period, after the price is agreed. The buyer has to wait for the result before exercising the OTP. That order is deliberate: you negotiate the price first and only learn the value once the option is signed.
For a seller, that means there is no official number to price against. You price off recent transactions in your block and town, and the valuation then tells you whether the buyer can finance the full price without extra cash. If you want a sense of where your flat sits before listing, recent nearby prices are shown when you register an Intent to Sell. Our HDB resale process guide covers that step.
What cash over valuation means now
Cash over valuation (COV) is the amount by which the agreed price exceeds HDB’s value. Because CPF and loans stop at the value, the buyer pays the COV in cash.
| Example | Figure |
|---|---|
| Agreed price | $700,000 |
| HDB valuation | $680,000 |
| COV, paid in cash | $20,000 |
| Maximum loan (75% of $680,000) | $510,000 |
| Rest of the $680,000, from CPF and cash | $170,000 |
So the buyer in this example needs $20,000 in cash on top of the usual downpayment. For many upgrading couples, that cash is the hardest part to find.
Why COV mostly disappeared
COV used to be quoted openly in negotiations. Before 2014, the valuation came first and sellers asked for a fixed sum “over valuation”. EdgeProp reported a median COV of $38,000 in 2011, with COV in popular estates such as Bishan reaching up to $100,000.
That changed in March 2014, when HDB moved the valuation to after the OTP. Sellers lost a published benchmark to quote against, and HDB stopped publishing median COV figures. Since then, buyer and seller agree one price without knowing the value, which takes away the anchor that used to push COV up.
The data since then is patchy, because no official series exists:
| Period | What was reported | Source |
|---|---|---|
| 2011 | Median COV about $38,000 | EdgeProp, citing older HDB data |
| 2016 | About 80% of resale deals had no COV | EdgeProp, citing PropNex |
| 2022 | About 1 in 4 resale buyers paid COV | 99.co, citing The Straits Times |
| 2025 | 69.1% of a 110-deal sample of $1m+ flats paid no COV; 9.1% paid $80,000 or more | PropNex survey, reported July 2026 |
We could not find any official or market-wide COV figure for 2026. The market itself has cooled: HDB’s flash estimate shows resale prices down 0.2% in the third quarter of 2026, the third quarterly dip in a row. A softer market usually means fewer buyers willing to pay over value, but we haven’t seen numbers that confirm this for 2026.
What to do if the valuation comes in low
If the value is below the agreed price, the deal isn’t automatically off. The buyer has three choices, and the seller has a say in the second.
- The buyer pays the gap in cash and the deal continues at the agreed price.
- Both sides renegotiate. The seller can drop the price to the value or meet the buyer partway, so the buyer pays a smaller COV.
- The buyer lets the option lapse, losing only the option fee (up to $1,000), and the seller is free to relist.
As a seller, think about what a lapse costs you: another round of viewings, a new 21-day option period and another valuation. Meeting a buyer partway on a small gap is often cheaper than starting again, especially if your own next purchase depends on this sale.
As a buyer, keep a cash buffer of a few percent of the price until the result is in. Don’t exercise the OTP until you have both the valuation and your loan offer.
We could not confirm a formal appeal process for an HDB valuation on HDB’s pages. If you believe the value is wrong, ask HDB directly before the option period ends.
How valuation affects upgraders
If you’re selling to upgrade, a low valuation on your buyer’s side can delay your own plans, and a low valuation on the flat you’re buying can raise the cash you need. Work out both before you commit. Your loan options, including the 75% limit and the cash rules for bank loans, are in our HDB loan vs bank loan guide, and your buyer’s HFE letter is explained in our HFE letter guide.
This page is general information, checked on 12 October 2026. HDB is the authority on any individual valuation.
Common questions
When does HDB do the valuation?
After the seller grants the Option to Purchase. The buyer files a Request for Value by the next working day after the option date, and the result usually comes within 10 working days, inside the 21-day option period.
Can COV be paid with CPF?
No. CPF use and the housing loan are both based on the lower of the price and HDB's value, so anything above the value has to come from cash.
Is COV still common in 2026?
Less than it used to be. HDB no longer publishes COV figures. In a PropNex survey of 110 million-dollar resale deals completed in 2025, reported in July 2026, 69.1% of buyers paid no COV. Popular units can still command it.
What happens if the valuation is lower than the agreed price?
The buyer can pay the gap in cash, ask the seller to lower the price, or let the option lapse and lose only the option fee. The seller keeps the option fee in that last case and can relist.
Who pays for the HDB valuation?
The buyer. The Request for Value costs $120 including GST, paid to HDB when the buyer submits it with page 1 of the OTP.
Do cash buyers need a Request for Value?
No. HDB says buyers who use no CPF and take no housing loan do not need to submit one.
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Sources
Facts on this page were checked against these sources on 12 October 2026.
- HDB: Request for Value
- HDB: Mode of financing for resale flats
- HDB: Option to Purchase important notes (Sep 2022)
- HDB resale seminar handouts (2023)
- MyNiceHome (HDB): Housing loans for HDB flat buyers, updated 23 August 2026
- EdgeProp: Cash over valuation, does it still affect you? (Nov 2018)
- The Independent SG: Most buyers of $1M resale HDB flats paid no COV (21 July 2026)
- 99.co: Cash over valuation explained (cites Straits Times on 2022 COV)
- EdgeProp: HDB resale prices dip 0.2% in 3Q2026, flash estimates (1 Oct 2026)
- ERA: 2Q 2026 HDB quarterly report (1 July 2026)



