14 Alton Close, Isleworth, TW7 6AL
About 14 Alton Close
14 Alton Close is a four-bedroom semi-detached house in Isleworth (TW7 6AL). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (July 2022) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since September 2009. Between certificates, lighting went from Average to Very Good and main heating went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 80), a 2-band jump.
It hasn't traded since December 2009, a hold of 16 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 125 m² the property is well over the postcode median (84 m² across 8 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Today's modelled estimate of £764,000 sits 115.2% above the 2009 sale of £355,000. On a £-per-square-foot basis, the last sale (£264/sq ft) was about 28.6% below the postcode norm. One planning record on file: an extension refused in 2004.
Know exactly what you're buying at 14 Alton 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
- Bedrooms4
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- GarageYes
Energy performance
14 Alton Close's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Planning history
- Mar 2004ExtensionOutlineIn report
Certificate of Lawfulness for the proposed erection of a rear roof extension to existing dwellinghouse.
- Reference
- P/2004/0447
We flagged 2 things worth checking at 14 Alton 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
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£764,000
Modelled from EPC, postcode comparables.
£355,000
Recorded with HM Land Registry.
Sales timeline
11 December 2009Most recent
£355,000
Median price across the last 5 sales in TW7 6AL: £450,000 (2020–2013).
Everything we know about 14 Alton 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 Alton Close homes
Price per m² for 14 Alton Close lags the street by a wide margin.
Price per m²
£2,840
Street avg £4,868
Floor Area
125 m²
Street avg 87 m²
Habitable Rooms
8 rooms
Street avg 5 rooms
CO₂ Emissions
7.7 t/year
Street avg 4.3 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
0.1 km
Alton Close — bus stop.
Closest school
0.2 km
Isleworth Town Primary School. 39 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
54.7dB
Night-time· 23:00 – 07:00
44.8dB