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Get started11 Sunna Gardens is a four-bedroom semi-detached house in Sunbury On Thames (TW16 5EE). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (December 2020) shows a C (score 73). When first surveyed in November 2009 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Poor to Good and lighting went from Poor to Very Good; while wall efficiency dropped from Good to Average.
Sale prices here have outpaced England HPI: 4% per year against 0% for the wider region. Today's modelled estimate of £784,000 is 14.5% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£439/sq ft) was about 46.9% above the typical sold price in the postcode. One planning record on file: an extension approved in 2004. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. At 145 m² it's 23.8% larger than the typical home in the postcode (117 m² median across 22 EPCs). Most recent transfer: April 2021 at £685,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
11 Sunna Gardens has an approved single-storey rear extension on the planning record.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£784,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 11 years.
£685,000
Growth on file: 4.0% per year over 11 years.
On epc rating, 11 Sunna Gardens stands well clear of the street.
Price per m²
£4,724
Street avg £4,439
Floor Area
145 m²
Street avg 122 m²
Habitable Rooms
6 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km

Daytime· 07:00 – 23:00
49.8dB

Changes detected from historical EPC data
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
Erection of a single storey rear extension to replace existing conservatory.
22 April 2021Most recent
£685,000
+8.7%over 4 years6 April 2017
£630,000
+41.6%over 7 years17 March 2010
£445,000
Median price across the last 5 sales in TW16 5EE: £650,000 (2025–2021).
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 4.8 t/year
TW16 5BJ
Oakington Drive — bus stop.
Closest school
0.1 km
Chennestone Primary School. 21 schools nearby.
Night-time· 23:00 – 07:00
40.4dB
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