542a, London Road, Isleworth, TW7 4EP
About 542a
542a is a mid-terrace house in Isleworth (TW7 4EP). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2022) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2009. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 71).
Today's modelled estimate of £360,000 sits 100% above the 2021 sale of £180,000. On a £-per-square-foot basis, the last sale (£283/sq ft) was about 17.4% above the typical sold price in the postcode. At 59 m² it's 15.7% larger than the typical home in the postcode (51 m² median across 38 EPCs). 2 planning records sit against the property, 0 approved, 2 refused. Sold June 2021 for £180,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 542a
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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Jul 2007SubdivisionFullIn report
Extension: Single storey
Conversion of 1st floors accommodation into 2 self contained flats including part demolition of existing garage/shed to the rear of 544A and erection of first floor extension
ExtensionDemolition- Reference
- P/2007/1524
- Apr 2007SubdivisionFullIn report
Extension: Single storey · Rear of property
Conversion of first floor accommodation into two x self contained studio flats and erection of first floor rear extension to flat
Extension- Reference
- P/2007/0687
We flagged 2 things worth checking at 542a
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 landed in the post-pandemic price surge — useful context when reading the figure.
£360,000
Modelled from EPC, postcode comparables.
£180,000
Recorded with HM Land Registry.
Sales timeline
10 June 2021Most recent
£180,000
Median price across the last 5 sales in TW7 4EP: £550,000 (2024–2021).
Nearby sales in TW7 4EP
Everything we know about 542a, 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 London Road homes
542a is notably below the street on years held.
Price per m²
£3,051
Street avg £4,710
Floor Area
59 m²
Street avg 57 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.5 t/year
Street avg 2.8 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
0.0 km
Thornbury Road — 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
53.6dB

Night-time· 23:00 – 07:00
43.5dB