Our Data Sources
Flat 1, 661, Great West Road, Isleworth has no records in the the Land Registry and a single entry in the EPC database dated June 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 Flat 1, 661, Great West Road, Isleworth, we estimate a market value of £261,849 and a rental value of £1,372 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £231,923 and £1,215 per month respectively.
Energy Efficiency
Flat 1, 661, Great West Road, Isleworth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 15 Jun 2026.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 65 properties similar to Flat 1, 661, Great West Road, Isleworth have sold within a radius of 600 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 13th February 2026, was 7, St. Andrews Close, Isleworth, TW7 4PG, a leasehold flat which sold for £300,000.
Read more about house prices in TW7.
- Sold Feb 2026£300,000 | 1 Bed Flat7, St. Andrews Close, Isleworth, TW7 4PG7, St. Andrews Close, Isleworth, TW7 4PG
- Sold Aug 2024£217,000 | 1 Bed Flat36, Oakley Close, Isleworth, TW7 4HZ36, Oakley Close, Isleworth, TW7 4HZ
- Sold Feb 2024£258,000 | 2 Bed FlatFlat 22, Thornbury Court, Church Road, Isleworth, TW7 4PPFlat 22, Thornbury Court, Church Road, Isleworth, TW7 4PP
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 252 addresses on Great West Road, Isleworth, TW7, Flat 1, 661, Great West Road, Isleworth comes out as the 245th largest and the 246th most expensive in our analysis of the public data.
It is also £257k less expensive than the average property across the TW7 district.
More reading links
Schools Nearby
- Spring Grove Primary School900 m away
- Marlborough Primary School1.3 km away
- Alexandra Primary School1.3 km away
- Isleworth and Syon School for Boys300 m away
- Bolder Academy1.3 km away
- The Green School for Girls1.5 km away
More reading links
Public Transport Nearby
- Osterley|400 m away
- Isleworth|1.0 km away
- Hounslow East|1.2 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.












