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    Flat 4 52 Onslow Square

    FLAT 4 52, ONSLOW SQUARE, LONDON, SW7 3NX

    This flat/maisonette leasehold property on Onslow Square last sold in February 2015 for £3,100,000. Based on price growth in the SW7 district since then, its estimated current value is £3,043,067 — placing it in the 99th percentile nationally and the 82nd percentile within SW7. The property covers 114 m² (1,227 sq ft), giving an estimated value of £26,694 per m². The EPC rating is D, with a potential rating of C.

    See wider trends for Onslow Square →

    Type

    Flat/Maisonette

    Tenure

    Leasehold

    Floor Area

    1,227 sq ft

    114 m²

    Last Sale Price

    £3,100,000

    Feb 2015

    Estimated Valuation

    £3,043,067

    Est. £/sq ft

    £2,480/sq ft

    £26,694/m²

    Property Details

    TypeFlat/Maisonette
    TenureLeasehold
    Built formMid-Terrace
    Construction ageEngland and Wales: before 1900
    Habitable rooms2
    Main fuelmains gas (community)
    EPC currentD
    EPC potentialC
    Floor area1,227 sq ft (114 m²)
    EPC dateNov 2014
    WallsSolid brick, as built, no insulation (assumed)
    HeatingCommunity scheme

    Transaction History

    23 Feb 2015

    £3,100,000

    14 Feb 2003

    £775,000

    Key Metrics

    Estimated valuation£3,043,067
    Value per sq ft / m²£2,480/sq ft (£26,694/m²)
    Estimated gross yieldNot available
    Implied monthly rentNot available
    SW7 district percentile82nd percentile
    National percentile99th percentile

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    Apr 2026

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    Feb 2026

    Flat 8 20Flat/Maisonette

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    Dec 2025

    Flat 2 11Flat/Maisonette

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    Flat 11 Malvern CourtFlat/Maisonette

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    Oct 2025

    Flat 10 81Flat/Maisonette

    £2,500,000

    Aug 2025

    Flat 9 14Flat/Maisonette

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    Jun 2025

    Flat 31 Malvern CourtFlat/Maisonette

    £1,850,000

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    Flat 21 Malvern CourtFlat/Maisonette

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    Mar 2025

    Flat 16 27Flat/Maisonette

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    See wider trends for Onslow Square →

    District Context — SW7

    See wider trends for SW7 →

    SW7 covers South Kensington and the surrounding area in central London, positioned in the heart of the capital's most prestigious neighbourhood. It is characterised by grand Victorian and Edwardian mansion blocks, world-class museums, and cultural institutions, drawing affluent professionals and international residents.

    Average Property Price - SW7

    £1,629,408

    100

    National percentile

    12 month avg at 30 Sep 2026

    Average Net Household Income - SW7

    £76,239

    100

    National percentile

    2023 census data

    10-Year Annualised Price Growth - SW7

    -4.2%

    1

    National percentile

    Estimate at 30 Sep 2026

    10-Year Annualised Rent Growth - SW

    3.2%

    7

    National percentile

    Estimate at 30 Sep 2026

    More properties on Onslow Square

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    Streets in SW7

    Fairholt StreetEnnismore Gardens MewsCheval PlaceRutland Mews SouthManson MewsOnslow SquarePrinces GateAshburn PlaceThurloe PlaceKynance MewsLancelot PlaceGloucester Road

    Nearby districts

    SW2SW3SW4SW5SW6SW8SW9SW10SW11SW12SE22W3

    Other areas

    Romford (RM)Salisbury (SP)Sheffield (S)Shrewsbury (SY)Slough (SL)South East London (SE)Southampton (SO)Southend-on-Sea (SS)St Albans (AL)Stevenage (SG)Stockport (SK)Stoke-on-Trent (ST)