Our Data Sources
17, Sidmouth Avenue, Isleworth has no records in the the Land Registry and a single entry in the EPC database dated September 2025.
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
In very good condition, we estimate 17, Sidmouth Avenue, Isleworth would be worth £565,944, with a potential rental value of £2,359 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £501,264, with a rental value of £2,090 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
17, Sidmouth Avenue, Isleworth occupies a 261 m2 plot as recorded by HM Land Registry.
All 35 other houses in this postcode have recorded plot sizes, and this one ranks as the 27th largest.
Energy Efficiency
17, Sidmouth Avenue, Isleworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 22 Sep 2025.
The property is connected to mains gas and has single glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 129 sales of comparable properties within 430 metres of 17, Sidmouth Avenue, Isleworth across the last 2 years.
Most recently, 4, Crawford Close, Isleworth, TW7 4DP, a freehold house, sold at £515,000 on the 18th July 2025.
Read more about house prices in TW7.
- Sold Jul 2025£515,000 | 3 Bed House4, Crawford Close, Isleworth, TW7 4DP4, Crawford Close, Isleworth, TW7 4DP
- Sold Jun 2024£575,000 | 3 Bed House5, Sidmouth Avenue, Isleworth, TW7 4DW5, Sidmouth Avenue, Isleworth, TW7 4DW
- Sold Dec 2022£530,000 | 3 Bed House19, Sidmouth Avenue, Isleworth, TW7 4DW19, Sidmouth Avenue, Isleworth, TW7 4DW
•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 17, Sidmouth Avenue, Isleworth as the 63rd largest and the 69th most expensive of the 113 addresses on Sidmouth Avenue, Isleworth, TW7.
Against the TW7 postcode district average, it is £32k more expensive than the typical property.
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Schools Nearby
- Spring Grove Primary School500 m away
- Isleworth Town Primary School800 m away
- The Smallberry Green Primary School900 m away
- Isleworth and Syon School for Boys800 m away
- Gumley House RC Convent School, FCJ900 m away
- The Green School for Girls1.3 km away
More reading links
Public Transport Nearby
- Isleworth|300 m away
- Osterley|1.1 km away
- Hounslow East|1.1 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
