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Get started11 Tanglyn Avenue is a five-bedroom semi-detached house in Shepperton (TW17 0AD). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (January 2022) shows an E (score 50), well below the UK norm with real room to improve. When first surveyed in July 2020 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, hot-water efficiency went from Very Poor to Good and main heating went from Average to Good; while wall efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 75), a 2-band jump. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£713/sq ft) was about 157.3% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion and an extension, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. Last sale on file: £652,000 in September 2024.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Certificate of Lawfulness for the proposed development of a loft conversion to include the installation of a rear facing dormer.
Latest sale on 11 Tanglyn Avenue was the highest on Land Registry record across the postcode.
£668,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.0% per year over 4 years.
£652,000
Growth on file: 9.0% per year over 4 years.
11 Tanglyn Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£7,671
Street avg £4,881
Floor Area
85 m²
Street avg 98 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Tanglyn Avenue — bus stop.

Daytime· 07:00 – 23:00
56.7dB

Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Hot water system upgraded
Roof insulation improved
Floor insulation added or improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Side of property
Erection of a single storey side extension.
27 September 2024Most recent
£652,000
+38.7%over 3 years4 December 2020
£470,000
Median price across the last 5 sales in TW17 0AD: £515,000 (2025–2019).
Street avg 6 rooms
CO₂ Emissions
5.3 t/year
Street avg 4.2 t/year
TW17 0ST
Closest school
0.5 km
Saxon Primary School. 11 schools nearby.
Flood risk
Low
From the Environment Agency.
Night-time· 23:00 – 07:00
48.7dB
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