10 Sidmouth Avenue, Isleworth, TW7 4DW
About 10 Sidmouth Avenue
10 Sidmouth Avenue is a semi-detached house in Isleworth (TW7 4DW). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (October 2013) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 86), a 3-band jump. The latest certificate is from October 2013, so improvements made since then won't be reflected.
Today's modelled estimate of £419,000 sits 346.9% above the 2014 sale of £93,750. On a £-per-square-foot basis, the last sale (£112/sq ft) was about 74.9% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs). Last changed hands 12 years ago, in February 2014.
Know exactly what you're buying at 10 Sidmouth Avenue
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This certificate is over 10 years old and is no longer valid.Expired 13 Oct 2023
EPC Rating
Planning history
10 Sidmouth Avenue has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at 10 Sidmouth Avenue
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
10 Sidmouth Avenue's modelled value sits at over four times its earliest registered sale price (2014).
£419,000
Modelled from EPC, postcode comparables.
£93,750
Recorded with HM Land Registry.
Sales timeline
28 February 2014Most recent
£93,750
Median price across the last 5 sales in TW7 4DW: £575,000 (2024–2022).
Nearby sales in TW7 4DW
Everything we know about 10 Sidmouth Avenue, 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 Sidmouth Avenue homes
On price per m², 10 Sidmouth Avenue runs well behind the street norm.
Price per m²
£1,202
Street avg £6,137
Floor Area
78 m²
Street avg 97 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 4.6 t/year
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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
West Thames College — bus stop.
Closest school
0.2 km
West Thames College. 47 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
43.3dB