# W1J 7 vs SW7 3: the same flat, about 41% cheaper per m² | Perfect Postcode
£1,223,460 less for an equivalent flat: same station, similar schools, ~2.6km apart

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Cheaper twin · England

# W1J 7 vs SW7 3: the same flat, about 41% cheaper per m²

41% cheaper / m²

£1,223,460 less for an equivalent flat: same station, similar schools, ~2.6km apart

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| Mayfair (W1J 7) | SW7 3
--- | --- | ---
Estimated £/m² | £32,986 | £19,392
On a 90 m² home | £2,968,740 | £1,745,280
Dominant property type | Flats/Maisonettes | Flats/Maisonettes
Typical build era | ~1914 | ~1914
Good+ secondary catchments | 2.0 | 2.0
Nearest station | ~0.3 km | ~0.3 km
Sales in sample (N) | 724 | 2,581

## The same life, one postcode cheaper

Mayfair (W1J 7) and SW7 3 sit about 2.6 km apart, share the same dominant housing (flats/maisonettes, typically built around 1914), comparable good-school catchments and the same level of station access. Yet an equivalent home works out roughly 41% (about £1,223,460 on a 90 m² property) cheaper in SW7 3. On the measures that move price they are near-identical; the gap is mostly the premium attached to the better-known name.

## How we worked this out

Postcode sectors (e.g. N10 3) compared on estimated £/m² of floor space. A pair is only called a 'twin' when the two sectors share the dominant property type, build era (±30y), good-school catchment provision, station access, deprivation/tenure, education, age and home size, so the price gap reflects a name premium, not a different kind of area. Estimates, not valuations; aggregated to sector, never address-level.

## Compare more areas

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Contains HM Land Registry data © Crown copyright and database right. Licensed under the Open Government Licence v3.0. Figures are estimates derived from recorded sales and EPC floor areas, aggregated to postcode sector, not valuations, and not address-level.