Most "Good Deal" Condos Fail on Yield, Not Price

Most "Good Deal" Condos Fail on Yield, Not Price

19 July 2026

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Ask ten agents what makes a condo a "good deal" and nine will point at the discount to asking price. That's the wrong metric. On most days QuantField runs its buy-box screen, the majority of listings that get rejected aren't rejected because they're overpriced against URA comps or badly located — they're rejected because the net yield doesn't clear 3.2% once financing, MCST fees, property tax, and a realistic vacancy allowance are actually netted out. A condo can be sitting 8% below district median PSF, freehold, 400m from an MRT exit, and still fail the screen the moment its asking rent implies a 2.6% net yield. Cash flow positive isn't a vibe — it's an arithmetic floor, and most listings don't clear it.

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1. The Net Yield Floor Is the Real Gate, Not the Headline Discount

QuantField's buy-box only advances listings that clear a 3.2% net yield floor. Net yield here is not gross rental divided by price — it's annual rent, less MCST/maintenance, less property tax, less a vacancy allowance, divided by all-in acquisition cost (price plus stamp duty and legal fees). That denominator matters: a $1.5m condo with $12,000/year in MCST and property tax needs meaningfully more gross rent to clear 3.2% net than the same unit priced at $1.3m.

This is why a discounted listing can still fail. Valuation Discount is worth up to 20 points in the QuantField Score, but Yield Strength is worth up to 40 — the single largest component, deliberately, because a below-market purchase price does nothing for your monthly cash flow if the rent-to-price ratio still doesn't cover holding costs. A buyer chasing "PSF below comps" without first checking net yield is optimizing the wrong variable.

2. Why District Median Comps Still Matter — Just Second

URA transaction comps aren't there to tell you if a deal is cash-flow positive — yield does that. Comps exist to stop you overpaying for a unit that does clear the yield floor today but is priced well above what recent transactions in that district support. A unit can clear 3.2% net yield purely because the listing agent is asking for an aggressive rent estimate, while the purchase price itself sits 15% above the last six months of comparable transactions. That's a trap: the yield math works on paper, but you've locked in a valuation that won't hold at resale, and the Data Confidence component exists specifically to flag when a listing's rent assumption is a hardcoded estimate rather than pulled from live URA rental data.

Run both checks in this order: net yield first (does it clear the floor at all), then valuation discount against district median (are you overpaying for the yield you're getting). Reversing the order is how buyers convince themselves a bad yield is fine because "it's a good price."

3. Tenure and Distance Are Filters, Not the Deal-Maker

Price band, MRT distance, tenure, and district are buy-box filters — they narrow the universe of listings worth running the full score on. They are not what separates a cash-flow-positive deal from a cash-flow-negative one within that universe. Two 99-year leasehold condos in the same district, both within 500m of an MRT, both under the same price cap, can land on opposite sides of the 3.2% floor purely because one has a rent-to-price ratio the other doesn't.

Tenure earns its own 15 points in the score (Tenure Durability) because lease decay affects long-run resale liquidity and CPF usage, not because it affects this month's cash flow. Don't conflate the two. A freehold unit with a weak yield is still a cash-flow-negative purchase; a 99-year unit with 65 years remaining and a strong net yield is still cash-flow positive today. They're solving different problems, and the buy-box treats them as separate line items rather than one blended "good deal" score for exactly this reason. The full parameter set — price band, tenure floor, MRT distance, and the 3.2% yield floor itself — is laid out on /buy-box.

4. Supply Pipeline Is the Silent Killer of Yield That Looks Fine Today

A listing can clear 3.2% net yield today and still be a bad cash-flow bet if the district has a wall of TOP units landing in the next 18-24 months. Supply Risk is worth up to 15 points (inverse — more pipeline, lower score) precisely because incoming completions compress achievable rents faster than most buyers model. A unit yielding 3.4% net today against current asking rents can slide under the floor within a year if 400 competing units complete two streets over and landlords start undercutting each other on rent to fill units.

This is the component most self-directed buyers skip entirely, because it requires cross-referencing URA's GLS and supply pipeline data against the specific district — not just checking today's rental listings. It's also why a listing's QuantField Score can look mediocre despite a currently-fine yield: the score is pricing in what the yield is likely to do, not just what it is on screening day.

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A Realistic Pre-Screen Checklist

Before submitting a listing, run this yourself:

1. Net yield, not gross. Take the asking rent, subtract MCST + property tax + a 1-month vacancy allowance, divide by (price + ~5% stamp duty/legal). If it's under 3.2%, stop — no amount of discount or location fixes this.
2. Check the rent assumption's source. Is it a live URA rental comp for that project/district, or the agent's verbal estimate? A yield built on an optimistic rent guess is not a real yield.
3. Pull district median PSF from recent URA transactions, not the last five years — use a 6-12 month window. Compare the asking PSF against it. Only do this after step 1 passes.
4. Check remaining lease against the 60-year CPF/resale-pool threshold if it's leasehold. This affects durability, not this month's cash flow, but it affects whether you'll want to hold this deal for ten years.
5. Check URA's supply pipeline for the district — upcoming project completions within 2km and within 24 months. A fine yield today against a heavy pipeline is a yield with an expiry date.

Run the actual numbers through the same buy-box logic at /screen-a-listing rather than eyeballing steps 1-5 by hand — the floor, the comps window, and the supply pipeline lookup are exactly what the daily screen automates.

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What This Means For You

Buyers should stop treating "below market PSF" as a proxy for a good deal — it's necessary but not sufficient. Run the net yield floor first; it kills more listings than price ever will.

Sellers pricing a rental-oriented unit should know that an aggressive asking rent doesn't just fail to convince a serious investor-buyer — it fails a mechanical screen before a human ever weighs in on the price.

Agents presenting a listing as investment-grade should be ready to show the net yield math, not just the comps discount — buyers running their own numbers (or QuantField's) will catch the gap immediately.

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This explainer describes QuantField's buy-box methodology and is not financial or investment advice. Net yield calculations depend on individual financing terms, tax status, and rental assumptions — verify all figures independently before transacting.