217a, Spring Grove Road, Isleworth, TW7 4AF
About 217a
217a is a semi-detached house in Isleworth (TW7 4AF). It has a recorded floor area of 52 m² (around 560 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (August 2015) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 73), a 2-band jump. The latest certificate is from August 2015, so improvements made since then won't be reflected. At 52 m² this is the 4th smallest of 9 units on EPC record in the building, where floor areas span 50–123 m². The building's EPC ratings span F to D across 9 units on file.
It hasn't traded since February 2006, a hold of 20 years that's notably long for the area. Across the public record there are 4 sales, relatively high churn for a single property. Across 1996–2006, sale prices on this property compounded at 13.8% per year. Today's modelled estimate of £306,000 sits 77.4% above the 2006 sale of £172,500. At 52 m² it sits well below the postcode median (81 m² across 8 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 217a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 26 Aug 2025
EPC Rating
Planning history
217a has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 217a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
Sale price has grown by over 3x since 1996.
£306,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.8% per year over 9 years.
£172,500
Growth on file: 13.8% per year over 9 years.
Sales timeline
20 February 2006Most recent
£172,500
+50.1%over 4 years26 July 2001
£114,950
+39.3%over 6 months19 January 2001
£82,500
+60.2%over 4 years24 October 1996
£51,500
Median price across the last 5 sales in TW7 4AF: £285,000 (2025–2012).
Nearby sales in TW7 4AF
213 Spring Grove Road, Isleworth, TW7 4AF
Sold Apr 2025
£580,000217 Spring Grove Road, Isleworth, TW7 4AF
Sold Oct 2023
£285,000221a, Spring Grove Road, Isleworth, TW7 4AF
Sold Aug 2013
£240,000225 Spring Grove Road, Isleworth, TW7 4AF
Sold May 2012
£415,000223 Spring Grove Road, Isleworth, TW7 4AF
Sold Jul 2011
£445,000
Everything we know about 217a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby
Versus other Spring Grove Road homes
Price per m² for 217a lags the street by a wide margin.
Price per m²
£3,317
Street avg £4,360
Floor Area
52 m²
Street avg 52 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.1 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Thornbury Road — bus stop.
Closest school
0.2 km
West Thames College. 46 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
53.7dB
Night-time· 23:00 – 07:00
43.8dB