Once you grant the OTP and both parties submit the resale application, HDB typically takes about 28 working days plus 8 calendar weeks to process through to completion — up to 14 weeks if valuation, loan approval, or appointment slots take longer than usual. Add the time spent finding a buyer beforehand, and the full journey from listing to keys usually runs 5–6 months.

No — with narrow exceptions assessed case-by-case by HDB (e.g. divorce, bankruptcy, specific hardship circumstances), you cannot sell before MOP. Check your MOP status via My HDBPage.

COV is the gap between your agreed selling price and HDB’s official valuation. Since both housing loans and CPF are capped at the valuation (not the agreed price), any amount above valuation must be paid entirely in cash by the buyer. For you as the seller, a higher COV means more of your price is locked in as guaranteed cash rather than being subject to loan/CPF processing — but too high a COV can make it harder for buyers to raise the cash, which can cause deals to fall through before the OTP is even exercised.

Only if you go on to buy another new subsidised flat directly from HDB (BTO, SBF, or new EC) — not triggered by simply selling, and not triggered if your next purchase is a resale flat or private property. The amount is fixed by your first subsidised flat type: roughly $15,000 for a 2-room up to $50,000 for an Executive flat (half that for Singles Grant recipients), and it’s paid in cash — deducted from your sale proceeds if you sell first, or paid in cash at key collection if you buy first.

Yes, up to 3 months from the completion date — but only if you’ve already committed to buying a completed property (resale HDB or private, ready for occupation; this doesn’t apply if you’re buying an uncompleted BTO). Both parties must agree and request it together with the resale application; there’s a small admin fee, and the extension ends automatically at 3 months with no further extensions possible.

The CPF you used (principal plus 2.5% p.a. accrued interest) gets refunded to your CPF Ordinary Account — not to you in cash — typically within about 2–3 weeks of completion. Any cash proceeds left over are paid to you on completion day itself. One useful protection: if your proceeds after loan repayment can’t fully cover the CPF refund, you generally don’t need to top up the shortfall in cash, as long as you sold at or above market value.

If they don’t exercise by 4pm on the 21st day, they forfeit the option fee and you’re free to grant a new OTP to another buyer.

As a seller, you can use HDB’s own conveyancing service (generally cheaper) if your outstanding loan is with HDB, or if you have no outstanding loan at all. If your outstanding loan is with a bank, you’ll need a private lawyer to act for you. The same applies on the buyer’s side — if they’re using a bank loan, they need a private lawyer from their bank’s approved panel. Many sellers still prefer a private lawyer for extra peace of mind, especially in more complex situations.

This is genuinely one of the trickiest parts of upgrading — you’re juggling two transaction timelines and cash flow simultaneously, and there’s no one-size-fits-all answer. Worth a proper planning conversation rather than trying to work it out from a generic guide.

Yes, but you’ll need additional documentation (court order/divorce certificate, or the Official Assignee’s consent for bankruptcy cases) before HDB will process your application. See the Eligibility section above for specifics.