48 Sidmouth Avenue, Isleworth, TW7 4DR
About 48 Sidmouth Avenue
48 Sidmouth Avenue is a three-bedroom semi-detached house in Isleworth (TW7 4DR). It has a recorded floor area of 91 m² (around 985 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (March 2009) shows a D (score 56), a step below the typical UK home. The latest certificate is from March 2009, so improvements made since then won't be reflected.
Untraded for 17 years, with the last transfer in July 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £519,000 sits 88.7% above the 2009 sale of £275,000. On a £-per-square-foot basis, the last sale (£279/sq ft) was about 16.7% below the postcode norm. One planning record on file: a loft conversion approved in 2018. Past consents include a loft conversion, meaningful when judging how the property has evolved.
Know exactly what you're buying at 48 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
What this property has
Inside
- Bedrooms3
Outside
- GarageYes
Building
- Central heatingYes
Energy performance
48 Sidmouth Avenue's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Mar 2019
EPC Rating
Planning history
- Sept 2018Loft ConversionOutlineIn report
Certificate of Lawfulness for the proposed erection of a rear roof extension incorporating hip to gable conversion and a Juliet balcony, three front roof windows and one side roof window to the house
- Documents
- 20 docs on file
- Reference
- P/2018/3274
We flagged 2 things worth checking at 48 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
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£519,000
Modelled from EPC, postcode comparables.
£275,000
Recorded with HM Land Registry.
Sales timeline
1 July 2009Most recent
£275,000
Median price across the last 5 sales in TW7 4DR: £640,000 (2024–2019).
Nearby sales in TW7 4DR
Everything we know about 48 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
Price per m² for 48 Sidmouth Avenue lags the street by a wide margin.
Price per m²
£3,006
Street avg £5,224
Floor Area
91 m²
Street avg 102 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
5.3 t/year
Street avg 4.3 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. 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
53.4dB
Night-time· 23:00 – 07:00
43.2dB