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Get started21 Hamhaugh Island is a three-bedroom detached house in Shepperton (TW17 9LP). It has a recorded floor area of 109 m² (around 1173 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (March 2016) shows a C (score 69), just inside the C band. When first surveyed in November 2008 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would push it to B (score 85). The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include notable views and outbuildings.
Sale prices here have outpaced England HPI: 6.7% per year against 0% for the wider region. Today's modelled estimate of £910,000 is 13.8% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£682/sq ft) was about 107.6% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sold in July 2017, so it's been off the market for around 9 years.
This certificate is over 10 years old and is no longer valid.Expired 24 Mar 2026
21 Hamhaugh Island has 2 separate extension applications on the council record.
Extension: Single storey · Rear of property
Prior Approval notification for a single storey rear extension extending 8 metres beyond the rear wall of the original dwelling house with a maximum height of 4 metres and a height by 3 metres to the eaves
21 Hamhaugh Island has more than tripled in price since its earliest registered sale in 1999.
£910,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 18 years.
£799,950
Growth on file: 6.7% per year over 18 years.
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21 Hamhaugh Island outperforms the street on price per m² by a wide margin.
Price per m²
£7,339
Street avg £4,893
Floor Area
109 m²
Street avg 117 m²
Habitable Rooms
4 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km

Daytime· 07:00 – 23:00
46.2dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Ventilation system changed
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Extension: Single storey · Rear of property
Prior approval notification for a single storey rear extension extending 8 metres beyond the rear wall of the original dwellinghouse with a maximum height of 4 metres and a height of 2.8 metres to the eaves.
24 July 2017Most recent
£799,950
+64.1%over 7 years19 April 2010
£487,500
+95.0%over 10 years26 July 1999
£250,000
Median price across the last 5 sales in TW17 9LP: £650,000 (2025–2022).
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Street avg 4 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.5 t/year
TW17 9JT
Weybridge Ferry Landing — ferry terminal.
Closest school
0.7 km
St Charles Borromeo Catholic Primary School, Weybridge. 15 schools nearby.
Flood risk
High
From the Environment Agency.
Night-time· 23:00 – 07:00
37.0dB