Reading comparable sales like an investor, not a hopeful buyer
18 June 2026 · 3 min read
Every buyer looks at "what similar places sold for" at some point in their search. Few do it rigorously enough for the number to mean anything — and a sloppy comparable-sales read is one of the most common ways an otherwise careful buyer still overpays.
"Comparable" is doing a lot of work in that phrase
A genuine comparable needs to actually be comparable, on the dimensions that drive price:
- Same or adjacent suburb — even neighbouring suburbs can carry meaningfully different price bases.
- Similar erf size and improvement size — a R3 million sale on a 1,200m² stand tells you very little about a 400m² one nearby.
- Similar age and condition — a recently renovated home and a original-condition one from the same era are not the same comparable, even on the same street.
- Recent — a sale from three years ago in a fast-moving market is closer to historical trivia than current pricing signal.
- A genuine arm's-length sale — a distressed sale, a sale between family members, or a sale bundled with other assets can print a price that isn't representative of open-market value.
The mistake: anchoring on the first number you see
It's easy to see one recent sale in the area, decide it's "the" comp, and anchor your offer around it — especially if it's a number that confirms what you already wanted to pay. A real comparable-sales read means gathering several genuinely similar recent sales and looking at the range, not cherry-picking the one that flatters your target price.
What this looks like for an investment purchase specifically
Beyond sanity-checking the asking price, a proper comparable set tells you:
- Whether the suburb has been trending up, flat, or down over the recent sales you're looking at — not just where prices sit today.
- Whether the specific stand you're considering is priced in line with, above, or below its genuine comparables — the gap either way is information.
- A more defensible basis for a counter-offer than "it feels too high," which rarely moves a motivated seller.
Where to actually get this data
Comparable sales data for a specific area isn't published in one convenient place — it requires access to recent transaction records, which is exactly the kind of thing worth paying for rather than trying to informally reconstruct. On checkproperty.co.za, recorded sales for the area are part of the Basic property report, with the median price and price per square metre, giving you a genuine comparable set rather than one anecdotal sale a neighbour mentioned.
The bottom line
A comparable-sales number is only as good as the comparisons behind it. Do the comparison properly, on a real set of similar, recent, genuine sales — not the one number that happens to support the offer you already wanted to make.
This is general information, not investment or financial advice. Property valuation depends on many factors beyond comparable sales; consult a qualified valuer for a transaction-grade assessment.