40 Cornwall Grove, Hounslow, London, W4 2LB
About 40 Cornwall Grove
40 Cornwall Grove is a four-bedroom mid-terrace house in Hounslow, London, London (W4 2LB). It has a recorded floor area of 141 m² (around 1518 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (December 2024) 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 September 2012. Between certificates, roof efficiency went from Very Poor to Good and window efficiency went from Average to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.
At 141 m² the property is well over the postcode median (72 m² across 49 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold June 2025 for £1,355,000. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1998–2025, sale prices on this property compounded at 6.4% per year. On a £-per-square-foot basis, the last sale (£893/sq ft) was about 137.4% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- EnsuiteYes
Outside
- Private gardenSouth-facing
Everything you need to know about 40 Cornwall Grove
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Loft insulation installed or upgraded to 250mm+
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
40 Cornwall Grove has 2 separate extension applications on the council record.
2 applications on record at 40 Cornwall Grove, Hounslow, London, W4 2LB
- May 2013ExtensionFullOutcome in report
Extension: Single storey · Side and rear of property
Erection of a single storey side and rear extension at the property
- Reference
- P/2013/0834
- More recent applications — locked
- ExtensionMay 2013Decision
Unlock 40 Cornwall Grove, Hounslow, London, W4 2LB's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 5 notable nearby
- What the pattern means for extending or converting here
30-day money-back guarantee
Sales history & valuation
Price for 40 Cornwall Grove has grown more than fourfold since the 1998 starting point.
£1,340,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 27 years.
£1,355,000
Growth on file: 6.4% per year over 27 years.
Sales timeline
2 June 2025Most recent
£1,355,000
+8.2%over 3 years17 February 2022
£1,252,000
+120.4%over 15 years30 August 2006
£568,000
+40.2%over 6 years4 May 2000
£405,000
+62.7%over 2 years2 April 1998
£249,000
Median price across the last 5 sales in W4 2LB: £1,060,000 (2025–2023).
Nearby sales in W4 2LB
35 Cornwall Grove, Hounslow, London, W4 2LB
Sold May 2025
£1,650,00026 Cornwall Grove, Hounslow, London, W4 2LB
Sold Jun 2024
£515,000Ground Floor Flat, 30 Cornwall Grove, London, W4 2LB
Sold Aug 2023
£475,00023 Cornwall Grove, Hounslow, London, W4 2LB
Sold Apr 2023
£1,100,0004 Cornwall Grove, Hounslow, London, W4 2LB
Sold Mar 2023
£1,060,000
Versus other Cornwall Grove homes
40 Cornwall Grove is notably below the street on years held.
Price per m²
£9,610
Street avg £7,342
Floor Area
141 m²
Street avg 134 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.4 t/year
Street avg 5.6 t/year
Everything you need to know about 40 Cornwall Grove
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
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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
Dorchester Grove — bus stop.
Closest school
0.3 km
The William Hogarth Primary School. 58 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
57.0dB

Night-time· 23:00 – 07:00
49.4dB









