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Get started23 Hawthorne Avenue is a four-bedroom semi-detached house in Harrow (HA3 8AG). It has a recorded floor area of 152 m² (around 1636 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (October 2020) shows a C (score 78), near the top of the C band. When first surveyed in July 2011 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Average. The recommended improvements would push it to B (score 86). Other recorded features include outbuildings. The home occupies a cul-de-sac position.
Sale prices here have outpaced Harrow HPI: 9.8% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£522/sq ft) was about 25.9% above the typical sold price in the postcode. 5 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a basement excavation, meaningful when judging how the property has evolved. At 152 m² it's 28.8% larger than the typical home in the postcode (118 m² median across 19 EPCs). Its energy rating outperforms most of the postcode (better than 79% of similar EPCs). Most recent transfer: August 2021 at £853,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Raised decking at rear
Sale price has at least doubled since 2011.
£883,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.8% per year over 10 years.
£853,500
Growth on file: 9.8% per year over 10 years.
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23 Hawthorne Avenue outperforms the street on epc rating by a wide margin.
Price per m²
£5,615
Street avg £4,928
Floor Area
152 m²
Street avg 132 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Kenton Station — bus stop.

Daytime· 07:00 – 23:00
50.8dB

Changes detected from historical EPC data
Upgraded to gas central heating
Connected to mains gas supply
Hot water system upgraded
Single glazing replaced with double or better glazing
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Raised decking at rear (retrospective application)
3 more applications for this property
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13 August 2021Most recent
£853,500
+151.0%over 9 years12 October 2011
£340,000
Median price across the last 5 sales in HA3 8AG: £727,500 (2025–2022).
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Street avg 6 rooms
CO₂ Emissions
3.3 t/year
Street avg 5.5 t/year
HA3 8QW
Closest school
0.6 km
Harrow High School. 42 schools nearby.
Night-time· 23:00 – 07:00
41.2dB