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Get startedIsobel House is a two-bedroom mid-terrace 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 1976-1982 and council tax band B. The latest certificate (April 2018) returns a B (score 81), comfortably above the UK average. When first surveyed in October 2008 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Poor to Average, lighting went from Poor to Very Good and main heating went from Very Poor to Good. 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, with this unit at the top.
Sale prices here have outpaced England HPI: 7.2% per year against 0% for the wider region. Today's modelled estimate of £253,000 is 20.5% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£283/sq ft) was about 75.4% above the typical sold price in the postcode. On energy efficiency it sits in the top 10% of properties in this postcode. Last sold in December 2017, so it's been off the market for around 8 years.
Isobel House ranks among the most efficient homes in the postcode for energy use.
Isobel House has more than tripled in price since its earliest registered sale in 1999.
£253,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 18 years.
£210,000
Growth on file: 7.2% per year over 18 years.
Isobel House outperforms the street on epc rating by a wide margin.
Price per m²
£3,043
Street avg £2,162
Floor Area
69 m²
Street avg 70 m²
Habitable Rooms
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
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Wall insulation upgraded
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
15 December 2017Most recent
£210,000
+75.1%over 12 years20 September 2005
£119,950
+101.6%over 5 years1 October 1999
£59,500
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
Street avg 3 rooms
CO₂ Emissions
1.2 t/year
Street avg 2.4 t/year
TW16 7LF
Closest school
0.5 km
Sunbury Manor School. 23 schools nearby.
Night-time· 23:00 – 07:00
49.6dB
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