Our Data Sources
Flat 1, 40, Osterley Avenue, Isleworth has no records in the the Land Registry and a single entry in the EPC database dated February 2021.
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
In very good condition, we estimate Flat 1, 40, Osterley Avenue, Isleworth would be worth £279,899, with a potential rental value of £1,322 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £247,910, with a rental value of £1,171 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 1, 40, Osterley Avenue, Isleworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Feb 2021.
The property is not connected to mains gas and has high performance glazing. It is heated using Room heaters, electric.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 63 sales of comparable properties within 630 metres of Flat 1, 40, Osterley Avenue, Isleworth across the last 2 years.
Most recently, 12, Chamberlain Gardens, Hounslow, TW3 4NF, a leasehold flat, sold at £260,000 on the 9th October 2025.
Read more about house prices in TW7.
- Sold Oct 2025£260,000 | 2 Bed Flat12, Chamberlain Gardens, Hounslow, TW3 4NF12, Chamberlain Gardens, Hounslow, TW3 4NF
- Sold Apr 2025£292,000 | 2 Bed Flat7, Chamberlain Gardens, Hounslow, TW3 4NF7, Chamberlain Gardens, Hounslow, TW3 4NF
- Sold Nov 2024£310,000 | 2 Bed FlatFlat 5, Marygold House, Taylor Close, Hounslow, TW3 4BZFlat 5, Marygold House, Taylor Close, Hounslow, TW3 4BZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks Flat 1, 40, Osterley Avenue, Isleworth as the 47th largest and the 47th most expensive of the 48 addresses on Osterley Avenue, Isleworth, TW7.
Against the TW7 postcode district average, it is £240k less expensive than the typical property.
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Schools Nearby
- Spring Grove Primary School900 m away
- Alexandra Primary School1.2 km away
- Heston Primary School1.5 km away
- Isleworth and Syon School for Boys600 m away
- Lampton Academy1.4 km away
- Lift Kingsley1.4 km away
More reading links
Public Transport Nearby
- Osterley|200 m away
- Hounslow East|1.1 km away
- Isleworth|1.2 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












