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    Flat 12 35 Onslow Gardens

    FLAT 12 35, ONSLOW GARDENS, LONDON, SW7 3PY

    This flat/maisonette leasehold property on Onslow Gardens last sold in March 2026 for £1,850,000. Based on price growth in the SW7 district since then, its estimated current value is £1,850,000 — placing it in the 99th percentile nationally and the 82nd percentile within SW7. The property covers 100 m² (1,076 sq ft), giving an estimated value of £18,500 per m². The EPC rating is D, with a potential rating of D.

    See wider trends for Onslow Gardens →

    Type

    Flat/Maisonette

    Tenure

    Leasehold

    Floor Area

    1,076 sq ft

    100 m²

    Last Sale Price

    £1,850,000

    Mar 2026

    Estimated Valuation

    £1,850,000

    Est. £/sq ft

    £1,719/sq ft

    £18,500/m²

    Property Details

    TypeFlat/Maisonette
    TenureLeasehold
    Built formEnclosed Mid-Terrace
    Construction ageEngland and Wales: 1900-1929
    Habitable rooms3
    Main fuelmains gas (not community)
    EPC currentD
    EPC potentialD
    Floor area1,076 sq ft (100 m²)
    EPC dateJan 2024
    WallsTimber frame, as built, no insulation (assumed)
    HeatingBoiler and radiators, mains gas

    Transaction History

    6 Mar 2026

    £1,850,000

    Key Metrics

    Estimated valuation£1,850,000
    Value per sq ft / m²£1,719/sq ft (£18,500/m²)
    Estimated gross yieldNot available
    Implied monthly rentNot available
    SW7 district percentile82nd percentile
    National percentile99th percentile

    Other Properties on Onslow Gardens

    Flat 5 21Flat/Maisonette

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    Feb 2026

    Flat 7 90Flat/Maisonette

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    Jan 2026

    Flat 5 49Flat/Maisonette

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    Dec 2025

    Flat 5 67Flat/Maisonette

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    Aug 2025

    Flat 6 66Flat/Maisonette

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    Jul 2025

    Flat 1 42Flat/Maisonette

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    Jul 2025

    84aFlat/Maisonette

    £5,000,000

    Jul 2025

    Flat 3 26Flat/Maisonette

    £3,500,000

    Mar 2025

    Flat 10 30Flat/Maisonette

    £480,000

    Dec 2024

    Flat 6 42Flat/Maisonette

    £2,025,000

    Nov 2024

    Flat 2 38Flat/Maisonette

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    See wider trends for Onslow Gardens →

    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 Aug 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 Aug 2026

    10-Year Annualised Rent Growth - SW

    3.2%

    8

    National percentile

    Estimate at 31 Aug 2026

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    Streets in SW7

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    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)