How to Tell If a Singapore Condo Is Overpriced

Why the headline PSF lies to you

A buyer is shown two resale condos, both around $1,700 per square foot, and asked which is the better deal. The number alone cannot answer that. Per-square-foot price is moved more by tenure, unit size, and exact location than by anything resembling value. A freehold block trades above a 70-year leasehold block on the same road. A compact one-bedroom unit carries a higher PSF than a four-bedroom in the same development. A project two minutes from an MRT station prices above one fifteen minutes away in the same postal district. None of that tells you whether the price you are being quoted is fair for what it is.

To judge fairness you have to hold those factors steady and compare like with like. That is the whole idea behind the priced-vs-comparable signal on every project page: take a project's median PSF over the past three years and measure it against the median of recent resale transactions in the same comparable group. Riverfront Residences in District 19, for example, sits about 5.0% below the median of 1,363 comparable resales in its group. That is a more useful sentence than "Riverfront trades at roughly $1,560 PSF", because the 5.0% already absorbs the things that would otherwise distort the read.

What counts as a comparable

A comparable group, or cell, is defined by four attributes that genuinely shift price: the district, the property class (private condominium versus executive condominium, which trade 19 to 32% apart in the same area), the remaining-lease band, and the bedroom count. Leasehold is split into freehold, fresh leasehold with 90 or more years left, then 75 to 89, 60 to 74, and under 60 years. A three-bedroom unit in a fresh-leasehold District 19 project is only ever measured against other three-bedroom, fresh-leasehold District 19 resales.

Two deliberate choices keep the benchmark honest. The window is the trailing three years, so the comparison reflects the current market rather than a launch from a different cycle. And the benchmark uses resale and sub-sale caveats only, with new-launch transactions excluded. Developer pricing on a fresh launch reflects a marketing campaign and a show-flat, not the secondary market a resale buyer is actually competing in. Mixing the two would mostly measure the new-versus-resale gap rather than value, which is the error that sank an earlier version of this signal.

Each project also carries a confidence flag drawn from how deep its comparable pool is. Ten or more comparable sales reads as high confidence, five to nine as low confidence, and anything thinner is suppressed rather than shown. A delta computed against three sales is noise dressed as a number, so it is better to show nothing.

What genuine relative value looks like

The most actionable reads are moderate discounts in projects with a deep, liquid resale market, because there the number is hard to argue with. In District 19, Riverfront Residences (340 sales in three years) prints about 5.0% under its fresh-leasehold cohort, and Kingsford Waterbay, on a slightly shorter lease band, sits roughly 8.0% under its group across 217 sales. These are large, well-traded developments, so the discount is not a small-sample artefact. It reflects something real about the projects, usually a less central position within the district or a larger average unit size that drags the per-foot figure down.

A reading near zero is just as informative. The Florence Residences in District 19 sits within half a percent of its cohort median, and Affinity at Serangoon within one percent. For projects of that size, "priced in line" is the correct and unglamorous answer: the market has already found the level, and a buyer paying the going rate is not overpaying, merely paying.

Why two near-identical projects can differ by thirty points

Hold the comparison inside a single cell and the spread is still wide, which is the part most buyers underestimate. Among fresh-to-mid leasehold projects in District 19, Kingsford Waterbay reads about 8.0% below its cohort while Botanique at Bartley reads close to 22% above its own, on 164 sales. Same district, same broad tenure band, yet roughly thirty percentage points apart. The driver is location within the district. Botanique sits a short walk from Bartley MRT on the Circle Line, near the Maris Stella and Paya Lebar Methodist school cluster; the deeper-discount projects sit further out toward the Punggol and Sengkang fringe. The cell controls for tenure and size, but it cannot see the five-minute walk to a train line or the catchment of a popular primary school.

This is the honest limit of any cohort comparison. A discount can mean genuine value, or it can mean an ageing lease, a poorer position, or a layout the market has quietly marked down. In District 15, Villa Marina prints about 17% below its band and Siglap V about 16% below, but both readings lean on lease decay and project age rather than a bargain waiting to be claimed. The number tells you where to point the next question, not what the answer is.

When a premium is not overpricing

A large positive delta is the most misread output of all. Amber Park in District 15 prints around 54% above its freehold cohort. Read naively that says "wildly overpriced", and that reading would be wrong. Amber Park is a recently completed freehold redevelopment competing in a cell that still contains much older freehold stock along the same stretch. The premium is mostly vintage, condition, and facilities, not mispricing. A buyer comparing Amber Park to a 1990s walk-up two streets away is not looking at the same product, even though the cell treats them as cohort peers.

To stop the most extreme cases from masquerading as signal, the method drops any project whose median sits beyond one-and-a-half times the interquartile range of its cohort and marks it "incomparable", showing no number at all. That is why a new freehold project such as The Gazania in District 19, or the one-bedroom band at Amber Park, deliberately displays a dash rather than a delta. The same guard catches the downside: The Red House in District 15, a small heritage-shophouse conversion, falls so far below its nominal cohort that the comparison is meaningless and is withheld. A blank is the correct output when the cohort is the wrong yardstick.

Start with the lease band, not the postcode

If you take one habit from this method, make it this: never compare PSF across remaining-lease bands. It is the single most common error a buyer makes, and it is the reason a freehold project and a 60-year-leasehold project on the same road can both look "around $1,700" while representing very different value. A unit with forty years of lease left is a depreciating asset on a clock; a freehold unit is not. The cohort method forces the comparison into the correct band automatically, but when you are reading a listing or a chat-group screenshot, the discipline has to be yours.

The same caution applies to the private-versus-EC line. An executive condominium trades well below a private condo in the same district and bedroom band, so an EC that looks cheap against private stock is not a bargain, it is a different product with its own resale rules. Keeping class and lease band fixed before you look at the number is what turns a raw PSF into something you can reason about.

How to actually use it

Treat the delta as the first question in a short checklist, not the conclusion. Start with the confidence flag and the comparable count: a high-confidence reading on a few hundred sales deserves weight, a low-confidence one is a hint. Then ask why the number is what it is. If a project shows a discount, check whether the lease is shorter than its peers, whether it sits at the edge of the district, and whether the unit you are looking at matches the bedroom band that drives the figure. If it shows a premium, separate the part that is newer-and-better from the part that is genuinely expensive.

The number is most powerful as a relative filter. Within one district and tenure band, ranking projects by their delta surfaces where the resale market is paying up and where it is not, which is a faster shortlist than scrolling asking prices. From there, the per-bedroom medians on each project page let you sanity-check a specific unit, and the mortgage and stamp-duty calculator turns a fair-looking PSF into a real monthly cost with BSD, ABSD, and TDSR included. Save the projects that survive the check to your watchlist and let the transaction feed tell you when the cohort moves.

Who this helps, and who it does not

This method is built for resale buyers and investors weighing a specific completed project against the market around it. It is sharpest in deep, mature districts where the comparable pool runs to hundreds of sales. It is weakest, by design, for brand-new launches (which carry no resale signal yet), for ultra-prime trophy assets (where each project is close to its own market), and for anyone expecting a single number to replace a viewing. The price tells you where the cohort sits. The lease decay curve, the floor plate, the view, and the walk to the train still decide whether a particular unit is worth it.

Related

• District 19 hub with the priced-vs-comparable column across its top projects.
• District 15 hub for the freehold coastal stretch used in these examples.
• Riverfront Residences to see the signal and per-bedroom medians on a single project.
• Mortgage and stamp-duty calculator with BSD, ABSD, joint-buyer IWAA, and full ROI.