A unit rate needs a consistent area
Price per square foot divides a price by an area. Before comparing two figures, ask whether the prices are asking or transacted and how each area is defined. A mathematically correct division can still make a poor comparison when the inputs describe different things.
Keep square metres and square feet clearly labelled. HomeVantage normalises imported transaction areas and quarantines anomalous records. It does not silently assume an area unit or join ambiguous project names. When a source lacks those basics, leave the comparison incomplete.
Supporting references: URA: property data and REALIS ↗ URA: buying a property ↗
Quantum determines the commitment
A lower PSF can correspond to a larger and more expensive home. Compare total purchase quantum, required equity, duties and monthly repayments before deciding whether the unit rate represents value for your situation. A budget cannot be financed with a percentage advantage alone.
Hypothetical example: a S$1.5 million home may have a higher PSF than a larger S$2 million alternative. The larger alternative is still a S$500,000 greater purchase commitment before duties and financing effects. Neither is automatically better without reference to your space requirements and funding.
Supporting references: URA: property data and REALIS ↗ URA: buying a property ↗
Efficiency is household-specific
Two homes with similar areas can offer different usable walls, circulation and storage. Test the layouts with your actual furniture and routines. Do not turn a preferred layout into an invented universal efficiency score; explain the features that matter to you.
Use transaction evidence carefully. Match sale category, period, size band, tenure and other relevant characteristics. A project-wide median is not a valuation of a specific apartment, particularly when the sample mixes very different sizes or dates. Show sample size and the coverage period when reporting any summary.
Supporting references: URA: property data and REALIS ↗ URA: buying a property ↗
Build a comparison you can explain
Create columns for price type, date, source, area basis, total quantum and living-use observations. Put current asking prices and historical transactions in separate fields. An old transaction does not establish a current purchase opportunity.
If price or area evidence is missing, ask for it rather than calculating a misleading rate. A useful comparison identifies what needs checking before the next decision.
- Label asking and transacted prices separately.
- Confirm area units and measurement basis.
- Compare total quantum and upfront funds.
- Inspect layout with your household’s requirements.
- Match transaction samples before summarising.
Supporting references: URA: property data and REALIS ↗ URA: buying a property ↗
Sources & review
This is original research guidance, not an individual recommendation, legal opinion or loan approval. Hypothetical examples are not client results or available properties.
Put the reading into your plan.
Use the buyer tools, then bring your questions to a considered conversation. Please keep detailed financial and identity documents out of the initial enquiry.
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