Our Data Sources
12, Smallberry Avenue, Isleworth has a single entry in the Land Registry from March 2013 and a single entry in the EPC database dated July 2012.
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
In very good condition, we estimate 12, Smallberry Avenue, Isleworth would be worth £550,817, with a potential rental value of £2,428 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £487,867, with a rental value of £2,151 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
12, Smallberry Avenue, Isleworth occupies a 196 m2 plot as recorded by HM Land Registry.
Of the 50 other houses in this postcode, 48 have recorded plot sizes, and this one ranks as the 25th largest.
Energy Efficiency
12, Smallberry Avenue, Isleworth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 31 Jul 2012.
The property is not connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
12, Smallberry Avenue, Isleworth last changed hands on 11th March 2013, selling for £265,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 56.6% since March 2013.
- Sold Mar 2013£265,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 166 sales of comparable properties within 380 metres of 12, Smallberry Avenue, Isleworth across the last 2 years.
Most recently, 3, Smallberry Avenue, Isleworth, TW7 6QL, a freehold house, sold at £499,950 on the 2nd December 2025.
Read more about house prices in TW7.
- Sold Dec 2025£499,950 | 3 Bed House3, Smallberry Avenue, Isleworth, TW7 6QL3, Smallberry Avenue, Isleworth, TW7 6QL
- Sold Jan 2022£570,000 | 3 Bed House7, Smallberry Avenue, Isleworth, TW7 6QL7, Smallberry Avenue, Isleworth, TW7 6QL
- Sold Jun 2021£650,000 | 3 Bed House17, Smallberry Avenue, Isleworth, TW7 6QL17, Smallberry Avenue, Isleworth, TW7 6QL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 12, Smallberry Avenue, Isleworth as the 20th largest and the 22nd most expensive of the 50 addresses on Smallberry Avenue, Isleworth, TW7.
Against the TW7 postcode district average, it is £18k more expensive than the typical property.
More reading links
Schools Nearby
- Isleworth Town Primary School200 m away
- The Smallberry Green Primary School400 m away
- St Mary's Catholic Primary School, Isleworth600 m away
- Gumley House RC Convent School, FCJ500 m away
- The Green School for Boys800 m away
- The Green School for Girls800 m away
More reading links
Public Transport Nearby
- Isleworth|300 m away
- Syon Lane|1.0 km away
- Osterley|1.6 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.












