10 Deborah Close, Isleworth, TW7 4NY
About 10 Deborah Close
10 Deborah Close is an end-of-terrace house in Isleworth (TW7 4NY). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1967-1975 and council tax band D. At 70 m² this is the 3rd smallest of 26 units on EPC record in the building, where floor areas span 63–79 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (February 2019) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it C (April 2013); the latest reading is 2 bands lower. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 77), a 2-band jump.
Across 1997–2016, sale prices on this property compounded at 9.1% per year. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 96.1% above the typical sold price in the postcode. Last changed hands 10 years ago, in March 2016.
Know exactly what you're buying at 10 Deborah Close
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 Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
Low energy lighting percentage decreased
Planning history
10 Deborah Close has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 10 Deborah Close
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
Price for 10 Deborah Close has grown more than fourfold since the 1997 starting point.
£370,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.1% per year over 18 years.
£350,000
Growth on file: 9.1% per year over 18 years.
Sales timeline
28 March 2016Most recent
£350,000
+125.8%over 14 years25 February 2002
£155,000
+121.6%over 4 years31 October 1997
£69,950
Median price across the last 5 sales in TW7 4NY: £365,000 (2025–2021).
Nearby sales in TW7 4NY
Everything we know about 10 Deborah Close, 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 Deborah Close homes
On epc rating, 10 Deborah Close runs well behind the street norm.
Price per m²
£5,000
Street avg £3,399
Floor Area
70 m²
Street avg 71 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
4.6 t/year
Street avg 3.4 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
0.3 km
Thornbury Avenue/Great West Rd — bus stop.
Closest school
0.2 km
Isleworth and Syon School for Boys. 48 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
55.9dB

Night-time· 23:00 – 07:00
46.2dB