Our Data Sources
340A Road, Isleworth has no records in the the Land Registry and a single entry in the EPC database dated August 2021.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 340A Road, Isleworth, we estimate a market value of £404,649 and a rental value of £1,907 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £358,404 and £1,689 per month respectively.
Energy Efficiency
340A Road, Isleworth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 21 Aug 2021.
The property is connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 277 properties similar to 340A Road, Isleworth have sold within a radius of 440 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th January 2026, was 354, London Road, Isleworth, TW7 5AJ, a leasehold flat which sold for £380,000.
Read more about house prices in TW7.
- Sold Jan 2026£380,000 | 2 Bed Flat354, London Road, Isleworth, TW7 5AJ354, London Road, Isleworth, TW7 5AJ
- Sold Aug 2025£450,000 | 2 Bed Flat334, London Road, Isleworth, TW7 5AJ334, London Road, Isleworth, TW7 5AJ
- Sold Jul 2023£443,375 | 3 Bed Flat344A, London Road, Isleworth, TW7 5AJ344A, London Road, Isleworth, TW7 5AJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 879 addresses on London Road, Isleworth, TW7, 340A Road, Isleworth comes out as the 239th largest and the 247th most expensive in our analysis of the public data.
It is also £121k less expensive than the average property across the TW7 district.
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Schools Nearby
- The Smallberry Green Primary School200 m away
- Marlborough Primary School300 m away
- Isleworth Town Primary School400 m away
- The Green School for Girls400 m away
- The Green School for Boys500 m away
- Gumley House RC Convent School, FCJ900 m away
More reading links
Public Transport Nearby
- Isleworth|500 m away
- Syon Lane|700 m away
- Osterley|1.5 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












