Right-Sizing from Condo to HDB: Strategies, Costs and Timing in 2026

Right-sizing from a condo to an HDB flat became a much simpler plan on 28 July 2026, when the Government removed the 15-month wait-out period for private property owners buying non-subsidised resale flats. A household that once faced 15 months of renting between homes can now buy the flat first, move once, and sell the condo after.

This guide covers the strategy decisions that remain: which sequence to run, which flat to buy, what it costs, and how the move fits into a retirement plan. Right-sizing done well can unlock meaningful savings. Done in the wrong order, it can leave you paying two mortgages or racing a deadline.

What right-sizing actually unlocks

The financial case rests on the gap between what your condo sells for and what a resale flat costs. That gap, minus transaction costs and CPF refunds, becomes cash or retirement savings. Alongside the lump sum, monthly costs usually fall: conservancy charges in place of condo maintenance fees, lower property tax on a lower-value home, and a smaller or fully repaid mortgage.

Be honest about what you give up. Facilities, parking convenience and the option to rent out the whole property disappear. A resale flat also carries a 5-year Minimum Occupation Period (MOP), the period during which you cannot acquire private property or rent out the whole flat. Renting out spare bedrooms while you live in the flat remains allowed for larger flat types, subject to HDB's registration rules, which softens the income loss for some households. But if private prices keep climbing while you sit out the MOP, the door back is expensive. Staying put is a legitimate answer if the numbers are marginal.

Strategy 1: buy the flat first, sell the condo after

This is the sequence the rule change unlocked, and it suits households that cannot risk being without a home or want to renovate before moving.

The mechanics: apply for an HDB Flat Eligibility (HFE) letter, buy the resale flat with a bank loan, CPF or cash, complete the purchase, then dispose of the condo within 6 months of completion, as required by HDB's resale terms. Additional Buyer's Stamp Duty (ABSD) generally does not apply to the flat purchase because remission applies where HDB rules already compel disposal; confirm your case on the IRAS ABSD page.

The risks are financing and the deadline. Until the condo sells, the bank assesses your new loan with the existing mortgage still counted under the Total Debt Servicing Ratio (TDSR); our guide to TDSR and MSR explains how much that constrains borrowing. And the 6-month disposal clock does not pause for a slow market. Price the condo to sell from day one.

Strategy 2: sell the condo first, buy immediately

With the wait-out gone, selling first no longer costs you 15 months. It suits households that want maximum certainty on their budget: you know the exact proceeds before committing to a flat, you negotiate the purchase as a clean buyer with no disposal deadline, and the bank sees you debt-free.

The cost is timing risk on the other side. If the condo's completion date arrives before you secure a flat, you need interim housing. Negotiating a longer completion or a short leaseback with your condo buyer can bridge the gap. We compare both sequences in detail in our guide on whether to sell the condo first or buy the HDB flat first.

Choosing the flat: size, lease and town

Three decisions drive most of the outcome:

Decision	The trade-off
Flat size	Bigger flats in mature towns keep more of your capital tied up; smaller flats free more cash but shrink space for family
Remaining lease	Older, shorter-lease flats cost less but affect CPF usage and future resale; check how the lease covers the youngest buyer to age 95
Town	Mature estates carry premiums; moving one or two MRT stops out often saves six figures

CPF usage rules scale with remaining lease, so a cheap short-lease flat can be less usable than it looks. Our explainer on using CPF for property covers the mechanics, and our review of HDB resale price trends in 2026 shows where prices sit by segment.

The retirement layer: Silver Housing Bonus

For households aged 55 and above, right-sizing can stack with the Silver Housing Bonus. Since 1 December 2025, seniors who right-size to a 3-room or smaller flat can receive a cash bonus of $30,000 per household for committing a net increase of $60,000 into their CPF Retirement Account (pro-rated for smaller commitments), and a further $10,000 for moving to a 2-room or smaller flat, including a Community Care Apartment, for a maximum of $40,000. The committed sum can come from CPF housing refunds, so many sellers no longer need a cash top-up to qualify.

Eligibility carries conditions, including an annual-value cap on the property you sell, so a private home above the cap will not qualify. Check HDB's page against your property before building the bonus into your plan.

Sequencing all of this is where right-sizing plans most often go wrong: the flat purchase, the condo sale, the CPF refunds and the bonus commitment each have their own deadlines, and the right order depends on your loan balance, your condo's realistic selling price and your CPF position. A short conversation about your specific numbers is worth more than any general guide, and it costs nothing.

The costs to budget

Right-sizing is cheaper than upgrading, but it is not free:

• Buyer's Stamp Duty on the flat purchase, calculated on price or market value, whichever is higher; rates are on the IRAS stamp duty pages.
• Cash over valuation, if you agree a price above HDB's valuation of the flat; the difference is payable in cash.
• Agent commission and legal fees on both transactions.
• CPF refunds on the condo sale: principal plus accrued interest returns to your CPF account before cash proceeds reach you, which can make the spendable amount smaller than the headline gap.
• Renovation and moving, which right-sizers routinely underestimate for older resale flats.

A realistic sequence for 2026

1. Get your condo professionally priced against recent transactions, not against your hoped-for number.
2. Work out the true equity: expected price, minus loan redemption, minus CPF refund.
3. Decide the sequence: buy-first if you need housing certainty and can carry both briefly; sell-first if budget certainty matters more.
4. Apply for the HFE letter and, if buying first, secure bank financing with the existing mortgage disclosed.
5. Transact, following the step-by-step resale process, and diarise the 6-month disposal deadline from the day you complete.

The wait-out period was the obstacle that made all of this hypothetical for four years. It is gone. What remains is an ordinary, plannable pair of transactions, and the households that plan the sequence before signing anything are the ones that keep the most of what right-sizing promises.

Sources: MND, removal of the 15-month wait-out period, HDB, resale terms and conditions, HDB, acquiring private property, HDB, Silver Housing Bonus, HDB, Silver Housing Bonus enhancements, IRAS, stamp duty for property.