12 Deborah Close, Isleworth, TW7 4NY
About 12 Deborah Close
12 Deborah Close is a three-bedroom end-of-terrace house in Isleworth (TW7 4NY). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1950-1966 and council tax band D. At 71 m² this is the 13th 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 top. The latest certificate (January 2022) shows a C (score 77), near the top of the C band. When first surveyed in March 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Very Good.
It hasn't traded since July 2005, a hold of 21 years that's notably long for the area. Across 1995–2005, sale prices on this property compounded at 11.1% per year. Today's modelled estimate of £341,000 sits 88.4% above the 2005 sale of £181,000.
Know exactly what you're buying at 12 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
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- Communal gardenYes
- ParkingYes
Building
- Heating systemGas
- ConciergeYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Heating controls changed
Hot water system changed
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Planning history
12 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 12 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
30-day money-back guarantee
Sales history & valuation
Sale price has at least doubled since 1995.
£341,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.1% per year over 10 years.
£181,000
Growth on file: 11.1% per year over 10 years.
Sales timeline
13 July 2005Most recent
£181,000
+191.9%over 10 years16 May 1995
£62,000
Median price across the last 5 sales in TW7 4NY: £365,000 (2025–2021).
Nearby sales in TW7 4NY
Everything we know about 12 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
12 Deborah Close outperforms the street on epc rating by a wide margin.
Price per m²
£2,549
Street avg £3,552
Floor Area
71 m²
Street avg 71 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
1.7 t/year
Street avg 3.5 t/year
Similar properties nearby
1 Fairacre, Church Road
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1 Jordans Close
TW7 4JB
1 Herbert Place
TW7 4BU
1 Honnor Gardens
TW7 4SY
1 Meadowbank Close
TW7 4FB
1 Eversley Crescent
TW7 4LR
1 Aplin Way
TW7 4RJ
1 Marbaix Gardens
TW7 4FD
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