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Get started9 Belsize Road is a semi-detached house in Harrow (HA3 6JL). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (June 2020) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (March 2015); the latest reading is one band lower. Between certificates, wall efficiency dropped from Poor to Very Poor and lighting dropped from Very Good to Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Sale prices here have outpaced Harrow HPI: 8% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£527/sq ft) was about 84% above the typical sold price in the postcode. At 97 m² the property is well over the postcode median (72 m² across 28 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2016. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: October 2022 at £550,000. 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.
Extension: Single storey · Rear of property
Certificate of lawful development (proposed): alterations to roof to form end gable and rear dormer; installation of two rooflights in front roofslope; single storey rear extension
9 Belsize Road saw 3 transfers in just over a decade — high turnover for the postcode.
£563,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.0% per year over 7 years.
£550,000
Growth on file: 8.0% per year over 7 years.
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Floor Area for 9 Belsize Road runs comfortably ahead of the street norm.
Price per m²
£5,670
Street avg £5,152
Floor Area
97 m²
Street avg 77 m²
Habitable Rooms
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

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Low energy lighting percentage decreased
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19 October 2022Most recent
£550,000
+37.5%over 6 years2 June 2016
£400,000
+21.2%22 February 2016
£330,000
Median price across the last 5 sales in HA3 6JL: £555,000 (2025–2021).
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Detailed EPC data
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Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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Street avg 5 rooms
CO₂ Emissions
4.1 t/year
Street avg 3.8 t/year
Closest school
0.5 km
Cedars Manor School. 29 schools nearby.
Night-time· 23:00 – 07:00
43.7dB