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Get started71 Belsize Road is a semi-detached house in Harrow (HA3 6JL). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (December 2019) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump.
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £538,000 is 19.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£550/sq ft) was about 84.9% above the typical sold price in the postcode. Sold June 2021 for £450,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
71 Belsize Road has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED):Alterations to roof, to form an end gable, rear dormer. Insertion of two rooflights in side front roofslope and alteration to flue in the rear roofslope. Demolition of existing conservatory and erection of a single storey rear extension, (following Prior approval P/2800/21/prior).
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£538,000
Modelled from EPC, postcode comparables.
£450,000
Recorded with HM Land Registry.
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On habitable rooms, 71 Belsize Road runs well behind the street norm.
Price per m²
£5,921
Street avg £5,138
Floor Area
76 m²
Street avg 78 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Belsize Road — bus stop.

Daytime· 07:00 – 23:00
53.7dB

Extension: Single storey · Rear of property
Single Storey Rear Extension: 6.00 metres deep, 3.60 metres maximum height, 3.00 metres high to the eaves
29 June 2021Most recent
£450,000
Median price across the last 5 sales in HA3 6JL: £555,000 (2025–2022).
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Every application and decision on record
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CO₂ Emissions
3.8 t/year
Street avg 3.8 t/year
HA3 6JF
Closest school
0.5 km
Cedars Manor School. 29 schools nearby.
Night-time· 23:00 – 07:00
43.7dB