Our Data Sources
27, Penwerris Avenue, Isleworth has no records in the the Land Registry and a single entry in the EPC database dated July 2023.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 27, Penwerris Avenue, Isleworth would be worth £856,974, with a potential rental value of £3,010 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £759,034, with a rental value of £2,666 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
27, Penwerris Avenue, Isleworth occupies a 395 m2 plot as recorded by HM Land Registry.
All 19 other houses in this postcode have recorded plot sizes, and this one ranks as the 11th largest.
Energy Efficiency
27, Penwerris Avenue, Isleworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Jul 2023.
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
Land Registry records and our Estate Agent network show 95 sales of comparable properties within 640 metres of 27, Penwerris Avenue, Isleworth across the last 2 years.
Most recently, 11, Cranmore Avenue, Isleworth, TW7 4QW, a freehold house, sold at £876,000 on the 29th August 2025.
Read more about house prices in TW7.
- Sold Aug 2025£876,000 | 3 Bed House11, Cranmore Avenue, Isleworth, TW7 4QW11, Cranmore Avenue, Isleworth, TW7 4QW
- Sold Jul 2025£822,500 | 4 Bed House106, Bassett Gardens, Isleworth, TW7 4QY106, Bassett Gardens, Isleworth, TW7 4QY
- Sold Oct 2024£900,000 | 4 Bed House18, Cranmore Avenue, Isleworth, TW7 4QW18, Cranmore Avenue, Isleworth, TW7 4QW
•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 27, Penwerris Avenue, Isleworth as the 24th largest and the 21st most expensive of the 40 addresses on Penwerris Avenue, Isleworth, TW7.
Against the TW7 postcode district average, it is £310k more expensive than the typical property.
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Schools Nearby
- Alexandra Primary School900 m away
- Spring Grove Primary School1.0 km away
- Heston Primary School1.1 km away
- Isleworth and Syon School for Boys900 m away
- Lampton Academy1.0 km away
- Heston Community School1.0 km away
More reading links
Public Transport Nearby
- Osterley|300 m away
- Hounslow East|900 m away
- Hounslow Central|1.4 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.
