Are you a property professional?Get qualified leads from motivated homeowners.
Get startedAre you a property professional?Get qualified leads from motivated homeowners.
Get started21 Ash Road is a detached house in Shepperton (TW17 0DW). It has a recorded floor area of 149 m² (around 1604 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (May 2023) shows a C (score 69), just inside the C band. When first surveyed in August 2011 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Very Good, window efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 81).
Sale prices here have outpaced England HPI: 5.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£499/sq ft) was about 31.9% above the typical sold price in the postcode. At 149 m² it's 26.7% larger than the typical home in the postcode (118 m² median across 9 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Most recent transfer was May 2025 at £799,950 — fresh data. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved.
21 Ash Road ranks among the most efficient homes in the postcode for energy use.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Amended Description: A replacement roof and increase in the ridge height, and a rear dormer to facilitate habitable accommodation and two rooflights in the front roof slope.
Latest sale on 21 Ash Road was the highest on Land Registry record across the postcode.
£793,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 13 years.
£799,950
Growth on file: 5.4% per year over 13 years.
Years Held for 21 Ash Road lags the street by a wide margin.
Price per m²
£5,369
Street avg £4,294
Floor Area
149 m²
Street avg 107 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Stewart Avenue — bus stop.

Daytime· 07:00 – 23:00
50.3dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
1 more application for this property
Join to see all planning history.
1 May 2025Most recent
£799,950
+102.5%over 13 years4 November 2011
£395,000
Median price across the last 5 sales in TW17 0DW: £530,000 (2024–2014).
CO₂ Emissions
4.8 t/year
Street avg 5.4 t/year
TW17 0DN
Closest school
0.3 km
Littleton CofE Infant School. 13 schools nearby.
Flood risk
Low
From the Environment Agency.
Night-time· 23:00 – 07:00
42.5dB
Free valuation
An expert visits your home
Local expertise
An agent who knows your area
No obligation
You decide if and when to sell