FLAT 1, 1, ONSLOW SQUARE, LONDON, KENSINGTON AND CHELSEA, GREATER LONDON, SW7 3NJ

£2,300,000

Last sale price

Mar 2021

Last sold

Recorded sales

Energy performance

EPC energy rating

110 m²

Total floor area

£20,909/m²

Price per m² (last sale)

Habitable rooms

5.2 t

CO₂ per year

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Energy performance data © Crown copyright, from the Energy Performance of Buildings Register, licensed under the Open Government Licence v3.0. Assessed Nov 2010.

Approximate location (postcode centre). Map data © OpenStreetMap contributors.

Local planning constraints

Conservation areaThurloe/Smith's CharityListed buildings2 nearby outlines

Planning designations from planning.data.gov.uk and Environment Agency flood-risk data, © Crown copyright and database right, under the Open Government Licence v3.0. Coverage is incomplete and depends on the local authority — absence here does not guarantee a property is unaffected. Always check official sources.

How this compares

Averages cover every recorded sale in SW7 3NJ (2015–2025) and are not adjusted for house-price changes over that period — where the market has risen, older sales pull the average below today’s values, so treat this as a rough guide rather than a like-for-like comparison.

£5,064,333

Average in SW7 3NJ (2015–2025)

£5,064,333

Average on ONSLOW SQUARE (2015–2025)

-55%

below postcode average