11 Deborah Close, Isleworth, TW7 4NY
About 11 Deborah Close
11 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 53), well below the UK norm with real room to improve. Earlier certificates rated it C (March 2009); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Average to Poor and hot-water efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 75), a 2-band jump.
It hasn't traded since February 1996, a hold of 30 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £355,000 sits 522.8% above the 1996 sale of £57,000. On a £-per-square-foot basis, the last sale (£76/sq ft) was about 68.1% below the postcode norm.
Know exactly what you're buying at 11 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
Planning history
11 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 11 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
11 Deborah Close's modelled value sits at over four times its earliest registered sale price (1996).
£355,000
Modelled from EPC, postcode comparables.
£57,000
Recorded with HM Land Registry.
Sales timeline
28 February 1996Most recent
£57,000
Median price across the last 5 sales in TW7 4NY: £365,000 (2025–2021).
Nearby sales in TW7 4NY
Everything we know about 11 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 price per m², 11 Deborah Close runs well behind the street norm.
Price per m²
£814
Street avg £3,661
Floor Area
70 m²
Street avg 71 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
4.1 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