Our Data Sources
21, Osterley Avenue, Isleworth has no recent1 records in the the Land Registry and a single entry in the EPC database dated November 2019.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 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 21, Osterley Avenue, Isleworth, we estimate a market value of £807,213 and a rental value of £3,008 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £714,960 and £2,664 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Osterley Avenue, Isleworth as measuring 258 m2.
That makes it the 31st largest plot in the postcode, where 40 of the 42 other houses have recorded plot data.
Energy Efficiency
21, Osterley Avenue, Isleworth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 15 Nov 2019.
The property is connected to mains gas and has some double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 21, Osterley Avenue, Isleworth completed on 23rd November 2001 at £342,500 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold Nov 2001£342,500
- Sold Apr 1997£157,000
Similar Properties Sold Nearby
Over the past 2 years 125 properties similar to 21, Osterley Avenue, Isleworth have sold within a radius of 670 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th March 2026, was 668, Great West Road, Isleworth, TW7 4PU, a freehold house which sold for £700,000.
Read more about house prices in TW7.
- Sold Mar 2026£700,000 | 4 Bed House668, Great West Road, Isleworth, TW7 4PU668, Great West Road, Isleworth, TW7 4PU
- Sold Nov 2022£856,750 | 4 Bed House62, Bassett Gardens, Isleworth, TW7 4QY62, Bassett Gardens, Isleworth, TW7 4QY
- Sold Mar 2021£735,000 | 4 Bed House17, Osterley Avenue, Isleworth, TW7 4QF17, Osterley Avenue, Isleworth, TW7 4QF
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 48 addresses on Osterley Avenue, Isleworth, TW7, 21, Osterley Avenue, Isleworth comes out as the 35th largest and the 34th most expensive in our analysis of the public data.
It is also £262k more expensive than the average property across the TW7 district.
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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
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.
