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    Flat 1 75 Onslow Square

    FLAT 1 75, ONSLOW SQUARE, LONDON, SW7 3LS

    This flat/maisonette leasehold property on Onslow Square last sold in December 1999 for £595,000. Based on price growth in the SW7 district since then, its estimated current value is £3,063,648 — placing it in the 99th percentile nationally and the 82nd percentile within SW7. The property covers 81 m² (872 sq ft), giving an estimated value of £37,823 per m². The EPC rating is C, with a potential rating of B.

    See wider trends for Onslow Square →

    Type

    Flat/Maisonette

    Tenure

    Leasehold

    Floor Area

    872 sq ft

    81 m²

    Last Sale Price

    £595,000

    Dec 1999

    Estimated Valuation

    £3,063,648

    Est. £/sq ft

    £3,514/sq ft

    £37,823/m²

    Property Details

    TypeFlat/Maisonette
    TenureLeasehold
    Built formMid-Terrace
    Construction ageEngland and Wales: 1930-1949
    Habitable rooms3
    Main fuelmains gas (community)
    EPC currentC
    EPC potentialB
    Floor area872 sq ft (81 m²)
    EPC dateSept 2024
    WallsSolid brick, as built, no insulation (assumed)
    HeatingCommunity scheme

    Transaction History

    10 Dec 1999

    £595,000

    Key Metrics

    Estimated valuation£3,063,648
    Value per sq ft / m²£3,514/sq ft (£37,823/m²)
    Estimated gross yieldNot available
    Implied monthly rentNot available
    SW7 district percentile82nd percentile
    National percentile99th percentile

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    Dec 2025

    Flat 2 11Flat/Maisonette

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    Flat 10 81Flat/Maisonette

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    Flat 9 14Flat/Maisonette

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    Jun 2025

    Flat 31 Malvern CourtFlat/Maisonette

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    Apr 2025

    Flat 21 Malvern CourtFlat/Maisonette

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    Mar 2025

    Flat 16 27Flat/Maisonette

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    Flat 2 23Flat/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

    £1,517,519

    100

    National percentile

    12 month avg at 31 Jul 2026

    Average Net Household Income - SW7

    £76,239

    100

    National percentile

    2023 census data

    10-Year Annualised Price Growth - SW7

    -4.9%

    1

    National percentile

    Estimate at 31 Jul 2026

    10-Year Annualised Rent Growth - SW

    3.2%

    8

    National percentile

    Estimate at 31 Jul 2026

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    Streets in SW7

    Cheval PlaceMontpelier WalkRutland Mews SouthManson MewsQueens GateOnslow SquarePetersham MewsAshburn PlaceKynance MewsLancelot PlaceGloucester RoadPrinces Gate

    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)