Our Data Sources
59, Sidmouth Avenue, 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 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 59, Sidmouth Avenue, Isleworth, we estimate a market value of £784,776 and a rental value of £2,961 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £695,087 and £2,623 per month respectively.
Plot Size
HM Land Registry records the plot of land for 59, Sidmouth Avenue, Isleworth as measuring 288 m2.
That makes it the 26th largest plot in the postcode, where 37 of the 39 other houses have recorded plot data.
Energy Efficiency
59, Sidmouth Avenue, Isleworth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Jun 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 82 properties similar to 59, Sidmouth Avenue, Isleworth have sold within a radius of 420 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 22nd November 2024, was 16, Sidmouth Avenue, Isleworth, TW7 4DW, a freehold house which sold for £670,000.
Read more about house prices in TW7.
- Sold Nov 2024£670,000 | 4 Bed House16, Sidmouth Avenue, Isleworth, TW7 4DW16, Sidmouth Avenue, Isleworth, TW7 4DW
- Sold May 2024£758,000 | 4 Bed House40, Woodland Gardens, Isleworth, TW7 6LL40, Woodland Gardens, Isleworth, TW7 6LL
- Sold Oct 2022£740,000 | 4 Bed House12, Sidmouth Avenue, Isleworth, TW7 4DW12, Sidmouth Avenue, Isleworth, TW7 4DW
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 113 addresses on Sidmouth Avenue, Isleworth, TW7, 59, Sidmouth Avenue, Isleworth comes out as the 9th largest and the 3rd most expensive in our analysis of the public data.
It is also £241k more expensive than the average property across the TW7 district.
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Schools Nearby
- Spring Grove Primary School400 m away
- Isleworth Town Primary School900 m away
- The Smallberry Green Primary School1.0 km away
- Isleworth and Syon School for Boys800 m away
- Gumley House RC Convent School, FCJ1.0 km away
- Lift Kingsley1.2 km away
More reading links
Public Transport Nearby
- Isleworth|400 m away
- Hounslow East|1.0 km away
- Osterley|1.0 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.












