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    23a Belsize Avenue

    23A, BELSIZE AVENUE, LONDON, NW3 4BL

    This flat/maisonette leasehold property on Belsize Avenue last sold in March 2012 for £930,000. Based on price growth in the NW3 district since then, its estimated current value is £1,181,298 — placing it in the 97th percentile nationally and the 58th percentile within NW3. The property covers 95 m² (1,023 sq ft), giving an estimated value of £12,435 per m². The EPC rating is D, with a potential rating of B.

    Type

    Flat/Maisonette

    Tenure

    Leasehold

    Floor Area

    1,023 sq ft

    95 m²

    Last Sale Price

    £930,000

    Mar 2012

    Estimated Valuation

    £1,181,298

    Est. £/sq ft

    £1,155/sq ft

    £12,435/m²

    Property Details

    TypeFlat/Maisonette
    TenureLeasehold
    Built formSemi-Detached
    Construction ageEngland and Wales: before 1900
    Habitable rooms3
    Main fuelmains gas (not community)
    EPC currentD
    EPC potentialB
    Floor area1,023 sq ft (95 m²)
    EPC dateSept 2020
    WallsSolid brick, as built, no insulation (assumed)
    HeatingBoiler and radiators, mains gas

    Transaction History

    22 Mar 2012

    £930,000

    28 Jul 2006

    £750,000

    12 Feb 2004

    £665,000

    23 Nov 1999

    £355,000

    Key Metrics

    Estimated valuation£1,181,298
    Value per sq ft / m²£1,155/sq ft (£12,435/m²)
    Estimated gross yieldNot available
    Implied monthly rentNot available
    NW3 district percentile58th percentile
    National percentile97th percentile

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    Flat 50 Hillfield CourtFlat/Maisonette

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    Aug 2025

    Flat 49 Hillfield CourtFlat/Maisonette

    £485,000

    Jul 2025

    Flat 58 Hillfield CourtFlat/Maisonette

    £475,000

    Jun 2025

    35gFlat/Maisonette

    £947,500

    May 2025

    Flat 2 47Flat/Maisonette

    £475,000

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    49bFlat/Maisonette

    £877,000

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    Flat 3 Hillfield CourtFlat/Maisonette

    £420,000

    Mar 2025

    Flat 3 21Flat/Maisonette

    £550,000

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    View full analysis for Belsize Avenue →

    District Context — NW3

    NW3 covers Hampstead, Belsize Park, and surrounding areas in north London, positioned on the fringe of central London. It is one of the capital's most affluent and established residential neighbourhoods, characterised by period properties, tree-lined streets, and strong cultural amenities.

    Average Property Price - NW3

    £1,566,932

    99

    National percentile

    Average Net Household Income - NW3

    £67,005

    100

    National percentile

    10-Year Annualised Price Growth - NW3

    1.2%

    4

    National percentile

    10-Year Annualised Rent Growth - NW

    2.6%

    2

    National percentile

    View full analysis for NW3 →

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    Streets in NW3

    Holly Bush ValePrimrose GardensGrove PlaceTudor CloseRosemont RoadBelsize AvenueAgincourt RoadDunboyne RoadSteeles RoadMackeson RoadMansfield RoadThe Mount Square

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