20, Cowper Avenue occupies a 193 m² plot as recorded by HM Land Registry.

All 21 other houses in this postcode have recorded plot sizes, and this one ranks as the 7th largest.

20, Cowper Avenue has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 16 Jun 2017.

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

20, Cowper Avenue last changed hands on 2nd December 2011, selling for £250,000. 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 86.7% since December 2011.

• Sold Dec 2011£250,000

Land Registry records and our Estate Agent network show 101 sales of comparable properties within 390 metres of 20, Cowper Avenue since 2019.

Most recently, 70, Victoria Avenue, London, E6 1EY, a freehold house, sold at £500,000 on the 12th December 2025.

Read more about house prices in E6.

• Sold Dec 2025£500,000 | 4 Bed House70, Victoria Avenue, London, E6 1EY70, Victoria Avenue, London, E6 1EY
• Sold Sep 2025£500,000 | 4 Bed House44, Woodhouse Grove, London, E12 6SR44, Woodhouse Grove, London, E12 6SR
• Sold Aug 2025£680,000 | 4 Bed House15, Woodhouse Grove, London, E12 6SR15, Woodhouse Grove, London, E12 6SR
• Sold Jun 2025£625,000 | 4 Bed House47, Milton Avenue, London, E6 1BG47, Milton Avenue, London, E6 1BG
• Sold Mar 2025£450,000 | 4 Bed House26, Edith Road, London, E6 1DE26, Edith Road, London, E6 1DE
• Sold Dec 2024£540,000 | 4 Bed House12, Bendish Road, London, E6 1JH12, Bendish Road, London, E6 1JH
• Sold Oct 2024£600,000 | 4 Bed House138, Milton Avenue, London, E6 1BL138, Milton Avenue, London, E6 1BL
• Sold Oct 2024£395,260 | 4 Bed House23, Lawrence Road, London, E6 1JN23, Lawrence Road, London, E6 1JN
• Sold May 2024£490,000 | 4 Bed House27, Milton Avenue, London, E6 1BG27, Milton Avenue, London, E6 1BG
• Sold Nov 2023£550,000 | 4 Bed House36, Bendish Road, London, E6 1JH36, Bendish Road, London, E6 1JH
• Sold Dec 2022£541,000 | 4 Bed House8, Edith Road, London, E6 1DE8, Edith Road, London, E6 1DE
• Sold Nov 2022£500,000 | 4 Bed House2, Sibley Grove, London, E12 6SE2, Sibley Grove, London, E12 6SE
• Sold Nov 2022£565,000 | 4 Bed House18, Sibley Grove, London, E12 6SE18, Sibley Grove, London, E12 6SE
• Sold Oct 2022£520,000 | 4 Bed House31, Lawrence Road, London, E6 1JN31, Lawrence Road, London, E6 1JN
• Sold Oct 2022£540,000 | 4 Bed House25, Lawrence Road, London, E6 1JN25, Lawrence Road, London, E6 1JN
• Sold Apr 2022£195,000 | 4 Bed House13, Milton Avenue, London, E6 1BG13, Milton Avenue, London, E6 1BG
• Sold Mar 2022£485,000 | 4 Bed House34, Bendish Road, London, E6 1JH34, Bendish Road, London, E6 1JH
• Sold Dec 2020£445,000 | 4 Bed House146, Milton Avenue, London, E6 1BL146, Milton Avenue, London, E6 1BL
• Sold Dec 2020£565,000 | 4 Bed House11, Edith Road, London, E6 1DE11, Edith Road, London, E6 1DE
• Sold Mar 2019£450,000 | 4 Bed House25, Milton Avenue, London, E6 1BG25, Milton Avenue, London, E6 1BG

Our analysis of the public data ranks 20, Cowper Avenue as the 13th largest and the 13th most expensive of the 26 addresses on Cowper Avenue, London, E6.

Against the E6 postcode district average, it is £150k more expensive than the typical property.

• Lathom Junior School

  500 m away
• William Davies Primary School

  600 m away
• Cleves Primary School

  600 m away

• Plashet, City of London Academy

  200 m away
• Little Ilford School

  1.2 km away
• St Angela's Ursuline School

  1.3 km away

• East Ham

  |

  300 m away
• Upton Park

  |

  900 m away
• Woodgrange Park

  |

  1.1 km away

Environment Agency data suggests this area has a Very Low risk of flooding.