15 Sibley Avenue

    15, SIBLEY AVENUE, HARPENDEN, AL5 1HE

    This semi-detached freehold property on Sibley Avenue last sold in March 2016 for £427,000. Based on price growth in the AL5 district since then, its estimated current value is £566,062 — placing it in the 84th percentile nationally and the 24th percentile within AL5. The property covers 59 m² (635 sq ft), giving an estimated value of £9,594 per m². The EPC rating is D, with a potential rating of B.

    See wider trends for Sibley Avenue →

    Type

    Semi-Detached

    Tenure

    Freehold

    Floor Area

    635 sq ft

    59 m²

    Last Sale Price

    £427,000

    Mar 2016

    Estimated Valuation

    £566,062

    Est. £/sq ft

    £891/sq ft

    £9,594/m²

    Property Details

    TypeSemi-Detached
    TenureFreehold
    Built formSemi-Detached
    Construction ageEngland and Wales: 1930-1949
    Habitable rooms3
    Main fuelmains gas (not community)
    EPC currentD
    EPC potentialB
    Floor area635 sq ft (59 m²)
    EPC dateDec 2015
    WallsCavity wall, as built, no insulation (assumed)
    HeatingBoiler and radiators, mains gas

    Transaction History

    21 Mar 2016

    £427,000

    Key Metrics

    Estimated valuation£566,062
    Value per sq ft / m²£891/sq ft (£9,594/m²)
    Estimated gross yieldNot available
    Implied monthly rentNot available
    AL5 district percentile24th percentile
    National percentile84th percentile

    District Context — AL5

    See wider trends for AL5 →

    AL5 covers Radlett and surrounding villages in Hertfordshire, north-west of London. It is an affluent, family-oriented area with strong schools and commuter appeal.

    Average Property Price - AL5

    £844,274

    98

    National percentile

    12 month avg at 31 Aug 2026

    Average Net Household Income - AL5

    £62,307

    98

    National percentile

    2023 census data

    10-Year Annualised Price Growth - AL5

    1.4%

    13

    National percentile

    Estimate at 31 Aug 2026

    10-Year Annualised Rent Growth - AL

    3.8%

    44

    National percentile

    Estimate at 31 Aug 2026

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