HM Land Registry records the plot of land for 26, Penwerris Avenue, Isleworth as measuring 337 m².

That makes it the 15th largest plot in the postcode, where all 17 other houses have recorded plot data.

26, Penwerris Avenue, Isleworth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 29 Jan 2015.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

Since 2009 66 properties similar to 26, Penwerris Avenue, Isleworth have sold within a radius of 610 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 4th September 2025, was 30, Lulworth Avenue, Hounslow, TW5 0TZ, a freehold house which sold for £935,000.

Read more about house prices in TW7.

• Sold Sep 2025£935,000 | 5 Bed House30, Lulworth Avenue, Hounslow, TW5 0TZ30, Lulworth Avenue, Hounslow, TW5 0TZ
• Sold May 2025£975,579 | 5 Bed House82, Gresham Road, Hounslow, TW3 4BU82, Gresham Road, Hounslow, TW3 4BU
• Sold Feb 2025£1,000,000 | 5 Bed House40, Burlington Road, Isleworth, TW7 4LY40, Burlington Road, Isleworth, TW7 4LY
• Sold Feb 2025£890,000 | 4 Bed House8, Marbaix Gardens, Isleworth, TW7 4FD8, Marbaix Gardens, Isleworth, TW7 4FD
• Sold Jul 2024£850,000 | 4 Bed House80, Bassett Gardens, Isleworth, TW7 4QY80, Bassett Gardens, Isleworth, TW7 4QY
• Sold Mar 2023£990,000 | 5 Bed House209, Jersey Road, Isleworth, TW7 4RE209, Jersey Road, Isleworth, TW7 4RE
• Sold Feb 2023£1,125,000 | 4 Bed House39, Jersey Road, Hounslow, TW5 0TR39, Jersey Road, Hounslow, TW5 0TR
• Sold Jan 2023£975,000 | 5 Bed House16, Cranmore Avenue, Isleworth, TW7 4QW16, Cranmore Avenue, Isleworth, TW7 4QW
• Sold Nov 2022£1,100,000 | 5 Bed House24, Cranmore Avenue, Isleworth, TW7 4QW24, Cranmore Avenue, Isleworth, TW7 4QW
• Sold Dec 2021£880,000 | 5 Bed House51, Burlington Road, Isleworth, TW7 4LX51, Burlington Road, Isleworth, TW7 4LX
• Sold Nov 2021£945,000 | 5 Bed House2, Osterley Avenue, Isleworth, TW7 4QF2, Osterley Avenue, Isleworth, TW7 4QF
• Sold Sep 2021£825,000 | 5 Bed House28, Penwerris Avenue, Isleworth, TW7 4QX28, Penwerris Avenue, Isleworth, TW7 4QX
• Sold Mar 2019£642,500 | 5 Bed House645, Great West Road, Isleworth, TW7 4PZ645, Great West Road, Isleworth, TW7 4PZ
• Sold Feb 2018£806,000 | 4 Bed House16, Osterley Avenue, Isleworth, TW7 4QF16, Osterley Avenue, Isleworth, TW7 4QF
• Sold May 2016£825,000 | 5 Bed House4, Penwerris Avenue, Isleworth, TW7 4QX4, Penwerris Avenue, Isleworth, TW7 4QX
• Sold Nov 2015£740,000 | 4 Bed House15, Stucley Road, Hounslow, TW5 0TN15, Stucley Road, Hounslow, TW5 0TN
• Sold Feb 2014£600,500 | 4 Bed House13, Cranmore Avenue, Isleworth, TW7 4QW13, Cranmore Avenue, Isleworth, TW7 4QW
• Sold Dec 2013£650,000 | 5 Bed House16, Burlington Road, Isleworth, TW7 4LY16, Burlington Road, Isleworth, TW7 4LY
• Sold Nov 2013£567,500 | 5 Bed House69, Burlington Road, Isleworth, TW7 4LX69, Burlington Road, Isleworth, TW7 4LX
• Sold Jun 2009£500,000 | 4 Bed House20, Penwerris Avenue, Isleworth, TW7 4QX20, Penwerris Avenue, Isleworth, TW7 4QX

Of the 40 addresses on Penwerris Avenue, Isleworth, TW7, 26, Penwerris Avenue, Isleworth comes out as the 9th largest and the 8th most expensive in our analysis of the public data.

It is also £519k more expensive than the average property across the TW7 district.

• Alexandra Primary School

  900 m away
• Spring Grove Primary School

  1.0 km away
• Heston Primary School

  1.1 km away

• Isleworth and Syon School for Boys

  1.0 km away
• Lampton Academy

  1.0 km away
• Heston Community School

  1.0 km away

• Osterley

  |

  300 m away
• Hounslow East

  |

  900 m away
• Hounslow Central

  |

  1.4 km away

The flood risk here is rated Very Low, based on Environment Agency data.