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Get started11 Aragon Close is a one-bedroom mid-terrace house in Sunbury On Thames (TW16 7JR). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1991-1995 and council tax band C. Tenure is freehold. The latest certificate (August 2021) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2009); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to A (score 92), a 4-band jump. Main heating runs on electricity. Period features are noted in the property record. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 5.5% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£605/sq ft) was about 95.3% above the typical sold price in the postcode. It changed hands recently, sold June 2025 for £280,000. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).
Recommended upgrades on file would lift this property by multiple EPC bands.
Price for 11 Aragon Close has grown more than fourfold since the 1999 starting point.
£290,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 26 years.
£280,000
Growth on file: 5.5% per year over 26 years.
On years held, 11 Aragon Close runs well behind the street norm.
Price per m²
£6,512
Street avg £4,713
Floor Area
43 m²
Street avg 67 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Green Lane — bus stop.

Daytime· 07:00 – 23:00
56.0dB

Changes detected from historical EPC data
Heating system changed
Hot water system changed
Single glazing replaced with double or better glazing
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
23 June 2025Most recent
£280,000
+9.4%over 6 years16 April 2019
£256,000
+38.4%over 5 years14 April 2014
£184,950
+5.7%over 6 years22 June 2007
£175,000
+14.8%over 1 year4 November 2005
£152,500
+117.9%over 6 years17 September 1999
£70,000
Median price across the last 5 sales in TW16 7JR: £465,000 (2025–2021).
CO₂ Emissions
2.7 t/year
Street avg 3.2 t/year
TW16 7ES
Closest school
0.7 km
Kenyngton Manor Primary School. 29 schools nearby.
Night-time· 23:00 – 07:00
46.6dB
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