Key Takeaways
- HDB lease decay accelerates sharply once a flat drops below 60 years of remaining lease, and financing constraints deepen from that point onward.
- Bala's Table, the Singapore Land Authority's official leasehold relativity model, values a fresh 99-year leasehold at roughly 96% of freehold and around 80% at 60 years remaining.
- Full CPF usage and full HDB loan-to-value are only available when the remaining lease covers the youngest buyer to age 95, otherwise both are pro-rated.
- With no new SERS projects planned and VERS terms deliberately less generous, older-flat prices in 2026 increasingly reflect intrinsic value rather than redevelopment hopes.
- Around one-third of Singapore's HDB stock is more than 35 years old, making lease decay a mainstream planning issue rather than a niche concern.
Expert takeaway: An HDB flat does not lose value in a straight line. Decay stays gentle for decades, then steepens once the remaining lease slips below 60 years, precisely where CPF and loan rules start to shrink the buyer pool.
Why HDB Lease Decay Matters More in 2026
Every HDB flat in Singapore sits on 99-year leasehold land, and that lease counts down from the day the block is completed. For most owners this is a slow, almost invisible process. But HDB lease decay becomes a genuine financial issue as flats age, and Singapore's public housing stock is ageing fast. Roughly one-third of the entire stock is now more than 35 years old, which means hundreds of thousands of households are affected, not a small fringe.
Lease decay matters because the value of any leasehold home is partly a function of how much usable lease remains. A flat with 30 years left is worth considerably less than an otherwise identical flat with 70 years left. The difference has little to do with paint, tiles or renovation, and everything to do with the real constraints buyers and banks face on financing, CPF usage and future resale. This is where Bala's Curve enters the picture.
What Bala's Curve Actually Tells You
Bala's Table is the leasehold relativity model published by the Singapore Land Authority and still used today as the official benchmark. It expresses the value of a leasehold interest at any remaining lease length as a proportion of a fresh 99-year lease, and it is the same framework professional valuers, banks and the government rely on for compensation and land-premium calculations.
The shape of the curve is the key insight. At the very top, a brand-new 99-year lease is worth almost as much as freehold, in the region of 96%. As remaining lease falls, value falls with it, but not on a straight line. By the time a flat has around 60 years left, the leasehold interest is worth roughly 80% of freehold on a Bala basis. Below 50 years the slope steepens, and below 40 years it accelerates sharply. In academic terms, a property with 50 years remaining is valued at about 74.7% of the freehold value of the site under the table.
| Remaining Lease | Approx. Value vs Freehold (Bala basis) | Decay Character |
|---|---|---|
| 99 years | ~96% | Near-peak, minimal annual loss |
| 80 years | ~90%+ | Gentle decay, roughly 0.2% per year |
| 60 years | ~80% | Financing rules begin to bite |
| 50 years | ~75% | Decay noticeably faster |
| 40 years | Lower still | Acceleration phase |
One important caveat: Bala's Table captures only the structural loss from a shorter remaining lease, before any market effects. Real-world prices are also driven by inflation, new MRT lines, schools, land bids and demand. In a flat's first few decades, market growth often masks or even outweighs lease decay, which is why a condo launched at 800 psf can trade far higher years later. But eventually, at around the 40-year mark, the mathematics catches up regardless of how many amenities appear nearby.
The 60-Year Mark: Where Financing Rules Bite
The reason 60 years remaining is a psychological and practical threshold is not just the curve. It is the point where two financing rules start to weigh on the buyer pool.
The first is CPF usage. Under the rules that have applied since May 2019, how much CPF you can use depends on whether the flat's remaining lease can cover the youngest buyer to age 95. If it can, and there are at least 20 years of lease left, you can use CPF up to the full Valuation Limit, the lower of purchase price or valuation. If the lease cannot stretch to cover the youngest buyer to 95, both CPF usage and the HDB loan-to-value are pro-rated downward. You can review the current framework directly on the CPF home ownership pages.
The second is the loan. Under the MAS loan tenure and LTV limits, the maximum LTV drops sharply when the loan tenure is long or extends past the borrower's age of 65, and HDB pro-rates its own loan when the lease cannot cover the youngest buyer to 95. In practice, a young couple buying a flat with a borderline lease will find both their CPF share and their loan quantum cut, forcing them to bring more cash.
| Scenario | CPF Usage | Loan / LTV |
|---|---|---|
| Lease covers youngest buyer to 95, 20+ years left | Up to full Valuation Limit | Full HDB LTV available |
| Lease does not cover youngest buyer to 95 | Pro-rated | Pro-rated from the standard limit |
| Less than 20 years remaining | No CPF allowed | No HDB loan allowed |
The effect is subtle but powerful. Older buyers face fewer restrictions on short-lease flats because the age-95 test is easier to satisfy, while younger buyers are effectively steered away. That narrows the future resale pool for any flat approaching the cliff, which is exactly what feeds back into a faster price slide. If you are weighing an older flat as part of an upgrading plan, it is worth reading our guide on upgrading from HDB to condo without paying ABSD alongside our walkthrough on calculating your HDB sales proceeds.
SERS Is Over, VERS Is Coming: What Changed
For years, some buyers of old flats quietly banked on the Selective En bloc Redevelopment Scheme (SERS) delivering a windfall. That bet no longer holds. The Ministry of National Development has signalled that most sites with high redevelopment potential have already been selected, so SERS is effectively winding down.
In its place is the Voluntary Early Redevelopment Scheme (VERS), which is expected to be offered to selected precincts when flats are around 70 years old, or roughly 30 years of lease remaining, with pilots targeted for the early 2030s. The government has been transparent that VERS is designed to be less generous than SERS, with terms balancing fairness across generations, and it is voluntary, so residents in an offered precinct must vote in favour for redevelopment to proceed. The practical result for 2026 is that older-flat prices increasingly reflect intrinsic value, such as location, size and unique layouts, rather than redevelopment speculation.
Opportunities and Risks of Buying an Older Flat
Older flats are not automatically a bad deal. There are genuine opportunities, provided you go in with clear eyes.
- Opportunity: value in mature estates. Older flats in Toa Payoh, Queenstown, Bishan and Ang Mo Kio sit on established transport and amenity networks that new towns take decades to build.
- Opportunity: unique layouts. Jumbo flats, terraced units and larger configurations from the 1970s and 1980s are simply not built today.
- Opportunity: right-sizing for seniors. Older buyers face fewer financing restrictions on short-lease flats and can unlock the value of an existing flat while staying in a familiar area, including via the Lease Buyback Scheme.
- Risk: a narrowing buyer pool. As a flat approaches the 60-year mark, financing rules shrink the set of buyers who can afford it without extra cash.
- Risk: CPF accrued interest. On exit you must refund the CPF used plus accrued interest, which can leave thin or negative cash proceeds on a depreciating asset.
- Risk: no guaranteed exit. With SERS ending and VERS voluntary and selective, there is no assured redevelopment payout.
For a fuller picture of how the cooling framework shapes your purchasing power, our explainer on how TDSR and LTV affect your loan and our overview of stamp duty basics are useful companions to this article.
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At what point does HDB lease decay become serious?
Decay is gentle for the first few decades, often around 0.2% a year on a Bala basis, and then steepens once remaining lease drops below 60 years. The 60-year mark matters most because CPF pro-ration and reduced loan-to-value begin to shrink the buyer pool from that point.
Can I still use CPF and get a loan for an older flat?
Yes, provided the flat has at least 20 years of lease remaining. If the lease covers the youngest buyer to age 95 you can use CPF up to the full Valuation Limit and access the full HDB loan-to-value, otherwise both are pro-rated. Flats with under 20 years left qualify for neither CPF nor an HDB loan.
Does Bala's Curve predict my flat's exact resale price?
No. Bala's Table captures only the structural loss from a shorter lease, before market effects. Actual prices also move with inflation, transport upgrades, estate amenities and demand, so your net result is the sum of lease decay and market movement, not the curve alone.
Will VERS rescue owners of very old flats?
VERS is expected to be offered to selected precincts at around 70 years old, with pilots in the early 2030s. It is voluntary, requires a resident vote, and is deliberately less generous than the old SERS, so it should be treated as a possibility rather than a guaranteed windfall.
Is a short-lease flat ever a good buy?
It can be, particularly for older buyers right-sizing for retirement or those who value a specific mature location and layout and do not intend to leave the flat to heirs. The key is to match the lease to your own time horizon and to budget for reduced financing and CPF accrued interest on exit.
Lease decay is one of those topics that looks abstract until it shows up in your CPF statement or your buyer's loan approval. Whether you are holding an ageing flat, weighing an older resale unit, or planning an upgrade before the financing cliff, the right move depends on your age, your time horizon and your wider financial picture. If you would like an independent, numbers-first read on where your specific flat sits on the curve and what your realistic options are, the team at PropertyNet.SG is happy to walk through it with you and help you plan a clear next step.