What the data says about Cascais
Not opinions — arithmetic. Each of these came out of the registers and the listings themselves, and each links to the page it was computed from so you can check it. 7 of them today.
Geography
Where is the biggest price gap in Cascais?
The median home in Birre asks €4,060,000; in São Domingos de Rana it asks €350,000. Same island, 11.6× the price.
What would make this wrong: It compares what is on the market, not like for like. An area of large houses will always beat an area of flats, whatever the land underneath is worth.
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What things cost
Which bedroom costs the most in Cascais?
Going from 4 bedrooms to 5 adds €985,000 to the median asking price — more than any other step on the ladder.
What would make this wrong: A 5-bed house is not a 4-bed house with a room added — it is usually a bigger plot in a different place. This is the price of a different kind of home, not the price of a bedroom.
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What things cost
Where does a square metre cost most in Cascais?
Monte Estoril, Estoril, Lisbon, Portugal asks €15,179 per m²; Alcabideche asks €7,238. The same 100 m² flat differs by €794,100 depending only on where it stands.
What would make this wrong: Only the listings whose agent published a floor area are in this, and agents measure differently. Condition and outside space are not in it at all.
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The market
How concentrated is Cascais's market?
Three agents hold 90% of everything advertised — 181, 80, 79 listings out of 379. 7 agents share the rest.
What would make this wrong: It counts adverts, not sales. An agency that lists everything it is asked to and one that sells everything it lists look identical here.
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The market
Do agents agree on what a house is worth?
1 property is marketed by more than one agent here, and on 1 of them the agents quote prices more than 2% apart. Both figures are published as given.
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Renting out
Where does renting out pay best in Cascais?
Quinta da Marinha, Cascais, Lisbon, Port shows the widest gap between rents and prices at 10.3% gross, against 3% island-wide.
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This week
What has moved in Cascais this week?
329 listings appeared, 6 had their price cut and 1 went up. We read every agent's site overnight, so this is the week as it happened.
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The island most like this one
On asking price and market size, Bermuda is Cascais's closest match anywhere on this site — a median of $1,295,000 (£948,301) against €2,200,000 (£1,884,691), across 384 listings against 379. Put them side by side
What the same money buys elsewhere
The median Cascais asking price, converted, against other islands' medians.
| Island | Their median | What Cascais money buys |
|---|---|---|
| Samoa | WS$250,000 | 27.6 homes at their median |
| Dominica | $204,598 | 12.6 homes at their median |
| Belize | $235,000 | 11.0 homes at their median |
| Bahrain | BD 90,000 | 10.8 homes at their median |
Converted at the previous day's reference rates. It compares medians, not like-for-like houses — an island of flats will always look cheap against an island of villas.