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Get startedIsobel House is a two-bedroom semi-detached house in Sunbury On Thames (TW16 7BD). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (February 2022) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2010. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Poor to Very Poor. At 69 m² this is the 17th smallest of 64 units on EPC record in Isobel House, where floor areas span 56–83 m². The building's EPC ratings span F to B across 64 units on file. Other recorded features include a balcony.
It hasn't traded since April 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Sale prices here have outpaced England HPI: 19.4% per year against 0% for the wider region. Today's modelled estimate of £238,000 sits 60.8% above the 2008 sale of £148,000. On a £-per-square-foot basis, the last sale (£199/sq ft) was about 23.5% above the typical sold price in the postcode.
Price for Isobel House has grown more than fourfold since the 1998 starting point.
£238,000
Modelled from EPC, postcode comparables and a sale-price growth of 19.4% per year over 10 years.
£148,000
Growth on file: 19.4% per year over 10 years.
EPC Rating for Isobel House lags the street by a wide margin.
Price per m²
£2,145
Street avg £2,180
Floor Area
69 m²
Street avg 70 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Sunbury Cross Shopping Centre — bus stop.

Daytime· 07:00 – 23:00
58.3dB

Changes detected from historical EPC data
Hot water system changed
Window efficiency improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
1 April 2008Most recent
£148,000
+28.8%over 7 months31 August 2007
£114,950
+355.2%over 9 years8 April 1998
£25,250
Median price across the last 5 sales in TW16 7BD: £165,000 (2025–2022).
Isobel House Flat 46 Staines Road West Sunbury On Thames
Sold Apr 2025
Isobel House Flat 12 Staines Road West Sunbury On Thames
Sold Apr 2023
Isobel House Flat 4 Staines Road West Sunbury On Thames
Sold Mar 2023
Isobel House Flat 56 Staines Road West Sunbury On Thames
Sold Sept 2022
Isobel House Flat 65 Staines Road West Sunbury On Thames
Sold Oct 2021
CO₂ Emissions
2.9 t/year
Street avg 2.4 t/year
TW16 7FS
Closest school
0.5 km
Sunbury Manor School. 23 schools nearby.
Night-time· 23:00 – 07:00
49.6dB
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