How to buy an HDB resale flat

Before you view anything

The HDB Flat Eligibility letter is mandatory, and it is the gate everything else waits behind. It confirms that you can buy a resale flat, how much you will receive in grants, and how much HDB will lend you. It takes weeks to process.

People routinely start viewing first and apply for the HFE later, then discover that the flat they wanted has gone to a buyer who had theirs in hand. Apply first, view second.

1. 1

   Check eligibility

   At least one buyer must be a Singapore citizen. Permanent residents can buy resale flats; the household must also meet the family nucleus and citizenship rules for the scheme you are applying under.

2. 2

   Apply for the HFE letter

   Through the HDB portal, with income documents for everyone in the household. Allow several weeks. It fixes which grant rules and income ceilings apply to you.

3. 3

   Set your real budget

   Loan ceiling from TDSR and MSR, plus your cash and CPF, minus stamp duty, legal fees and the cash over valuation you may have to bridge.

4. 4

   View and check the transactions

   Compare against recent sales in the same block and storey range, not against asking prices. Check the remaining lease against how long you intend to hold.

5. 5

   Negotiate and take the Option to Purchase

   You pay an option fee, and the seller grants you 21 days to exercise. Get the flat valued in this window — the valuation decides your loan and your cash over valuation.

6. 6

   Exercise the option

   Pay the option exercise fee. The option fee and exercise fee together are capped, and the balance is settled at completion.

7. 7

   Submit the resale application

   Both parties file with HDB. Approval and completion typically take eight to twelve weeks from here.

8. 8

   Complete and collect keys

   Final accounting of CPF, loan disbursement and outstanding amounts happens on the completion date.

Cash over valuation, and why it is not negotiable

HDB valuation is requested after the Option to Purchase is granted, not before — so you agree a price without knowing the valuation. If the agreed price exceeds it, the difference is cash over valuation, and it must be paid in cash. Not from the loan, not from CPF.

In a rising market this is where budgets break. A buyer stretches to win a flat, the valuation comes in below the agreed price, and the shortfall has to be found in cash inside three weeks. Knowing your cash position before you offer is what keeps that from happening.

HDB loan or bank loan

The HDB concessionary loan is fixed, requires less cash up front, and is forgiving if your circumstances change. A bank loan is often cheaper today but the rate moves, it demands a portion of the purchase price in cash specifically, and it is stress-tested at 4%.

You can refinance from an HDB loan to a bank later. You cannot go back the other way. That asymmetry is worth more than a small difference in the starting rate for anyone whose income is not yet settled.

How long it really takes

Roughly a month for the HFE letter, however long the search takes, then eight to twelve weeks from the Option to Purchase to keys. Three to six months in total is the honest range, and the search is the part that varies.

If you are selling a flat at the same time, the two timelines have to be made to meet, and that is a separate problem worth planning deliberately rather than hoping about.

Common questions

How long does it take to buy an HDB resale flat?

Three to six months in total: about a month for the HDB Flat Eligibility letter, an open-ended search, then eight to twelve weeks from Option to Purchase to key collection.

Do I need an HFE letter to buy a resale flat?

Yes. It is mandatory, it confirms your eligibility, grants and loan amount, and it takes weeks — so apply before you start viewing rather than after.

What is cash over valuation?

The amount by which the agreed price exceeds HDB's valuation of the flat. It must be paid in cash — it cannot come from the loan or from CPF — and the valuation is only known after the Option to Purchase is granted.

Can permanent residents buy an HDB resale flat?

Yes, subject to the eligibility scheme rules, though at least one buyer generally needs to be a Singapore citizen for the household to qualify for grants.