341a, Chiswick High Road, Hounslow, London, W4 4HS
About 341a
341a is a mid-terrace house in Hounslow, London, London (W4 4HS). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (July 2021) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since December 2009. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 80). At 68 m² this is the 22nd smallest of 24 units on EPC record in the building, where floor areas span 39–93 m². The building's EPC ratings span E to B across 24 units on file.
At 68 m² the property is well over the postcode median (50 m² across 32 EPCs), placing it in the larger end of the local stock. Across 2010–2024, sale prices on this property compounded at 2% per year. Today's modelled estimate of £436,000 is 13.2% above the 2024 sale price. Last sale on file: £385,000 in October 2024.
Everything you need to know about 341a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
341a has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
341a valuation sits well clear of the typical sold price in this postcode.
£436,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.0% per year over 14 years.
£385,000
Growth on file: 2.0% per year over 14 years.
Sales timeline
30 October 2024Most recent
£385,000
+32.8%over 14 years8 June 2010
£289,950
Median price across the last 5 sales in W4 4HS: £225,000 (2014–1998).
Versus other Chiswick High Road homes
Years Held for 341a lags the street by a wide margin.
Price per m²
£5,662
Street avg £5,688
Floor Area
68 m²
Street avg 51 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
3.1 t/year
Street avg 1.8 t/year
Everything you need to know about 341a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
Every report £14.99, one-off · 30-day money-back guarantee · emailed in minutes

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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Chiswick Road — bus stop.
Closest school
0.5 km
Belmont Primary School. 49 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
57.3dB

Night-time· 23:00 – 07:00
48.1dB









