Our Data Sources
33, Sidmouth Avenue, Isleworth has a single entry in the Land Registry from September 2020 and a single entry in the EPC database dated July 2020.
We combine this information with that 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 33, Sidmouth Avenue, Isleworth, we estimate a market value of £569,795 and a rental value of £2,372 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £504,676 and £2,101 per month respectively.
Plot Size
HM Land Registry records the plot of land for 33, Sidmouth Avenue, Isleworth as measuring 340 m2.
That makes it the 6th largest plot in the postcode, where all 35 other houses have recorded plot data.
Energy Efficiency
33, Sidmouth Avenue, Isleworth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 03 Jul 2020.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 33, Sidmouth Avenue, Isleworth completed on 18th September 2020 at £525,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 8.1% over the period since September 2020.
- Sold Sep 2020£525,000
Similar Properties Sold Nearby
Over the past 2 years 129 properties similar to 33, 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 19th December 2025, was 17, Sidmouth Avenue, Isleworth, TW7 4DW, a freehold house which sold for £550,000.
Read more about house prices in TW7.
- Sold Dec 2025£550,000 | 3 Bed House17, Sidmouth Avenue, Isleworth, TW7 4DW17, Sidmouth Avenue, Isleworth, TW7 4DW
- 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
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 113 addresses on Sidmouth Avenue, Isleworth, TW7, 33, Sidmouth Avenue, Isleworth comes out as the 60th largest and the 66th most expensive in our analysis of the public data.
It is also £36k more expensive than the average property across the TW7 district.
More reading links
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
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
