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Get started9 Annette Close is a two-bedroom detached house in Harrow (HA3 7BG). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 2007 onwards and council tax band D. At 71 m² this is the largest unit on EPC record across the building (41–71 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (November 2021) shows a C (score 74). Earlier certificates rated it B (May 2010); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good.
Sale prices here have outpaced Harrow HPI: 1.7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£393/sq ft) was about 21.1% above the typical sold price in the postcode. At 71 m² the property is well over the postcode median (54 m² across 7 EPCs), placing it in the larger end of the local stock. Sold September 2021 for £300,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£326,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.7% per year over 13 years.
£300,000
Growth on file: 1.7% per year over 13 years.
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Detailed AI analysis
Years Held for 9 Annette Close lags the street by a wide margin.
Price per m²
£4,225
Street avg £4,306
Floor Area
71 m²
Street avg 52 m²
Habitable Rooms
3 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
Salvatorian College / St Joseph's Ch — bus stop.

Daytime· 07:00 – 23:00
52.1dB

Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Heating controls upgraded for better temperature management
Heating controls changed
Wall insulation upgraded
Are we missing something? Tell us about home improvements to help adjust your valuation.
30 September 2021Most recent
£300,000
+25.0%over 13 years15 July 2008
£240,000
Median price across the last 5 sales in HA3 7BG: £245,000 (2019–2008).
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Street avg 3 rooms
CO₂ Emissions
2.1 t/year
Street avg 1.9 t/year
HA3 7SB
Closest school
0.2 km
The Sacred Heart Language College. 34 schools nearby.
Night-time· 23:00 – 07:00
40.8dB