23 Dawes Avenue, Isleworth, TW7 7JU
About 23 Dawes Avenue
23 Dawes Avenue is a semi-detached house in Isleworth (TW7 7JU). It has a recorded floor area of 90 m² (around 968 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (August 2009) shows a D (score 61), on the cusp of jumping into the C band. The latest certificate is from August 2009, so improvements made since then won't be reflected.
Held since November 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £504,000 sits 119.1% above the 2009 sale of £230,000. On a £-per-square-foot basis, the last sale (£238/sq ft) was about 21.2% above the typical sold price in the postcode. One historical planning record sits against the property in 2015.
Know exactly what you're buying at 23 Dawes 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
23 Dawes 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This certificate is over 10 years old and is no longer valid.Expired 31 Aug 2019
EPC Rating
Planning history
- Apr 2015ConversionOutlineIn report
Certificate of lawfulness for erection of a rear roof extension with Juliet balconies, hip to gable conversion and two roof windows to front elevation.
- Documents
- 15 docs on file
- Reference
- P/2015/1069
We flagged 1 thing worth checking at 23 Dawes 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.
- 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.
£504,000
Modelled from EPC, postcode comparables.
£230,000
Recorded with HM Land Registry.
Sales timeline
10 November 2009Most recent
£230,000
Median price across the last 5 sales in TW7 7JU: £311,000 (2025–2008).
Nearby sales in TW7 7JU
Everything we know about 23 Dawes 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
- Larger development activity nearby
Versus other Dawes Avenue homes
Price per m²
£2,557
Street avg £3,398
Floor Area
90 m²
Street avg 96 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.6 t/year
Street avg 4.5 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Woodstock Avenue St Margarets — bus stop.
Closest school
0.6 km
Worple Primary School. 49 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
52.5dB
Night-time· 23:00 – 07:00
43.4dB