23, Southdown Avenue occupies a 336 m² plot as recorded by HM Land Registry.

Of the 26 other houses in this postcode, 24 have recorded plot sizes, and this one ranks as the 11th largest.

23, Southdown Avenue last changed hands on 22nd December 2004, selling for £356,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

• Sold Dec 2004£356,000

Land Registry records and our Estate Agent network show 3 sales within 720 metres of 23, Southdown Avenue across the last 2 years.

Most recently, 16, Southdown Avenue, London, W7 2AQ, a freehold house, sold at £1,050,000 on the 31st October 2025.

Read more about house prices in W7.

• Sold Oct 2025£1,050,000 | 4 Bed House16, Southdown Avenue, London, W7 2AQ16, Southdown Avenue, London, W7 2AQ
• Sold Oct 2017£775,000 | 4 Bed House20, Southdown Avenue, London, W7 2AQ20, Southdown Avenue, London, W7 2AQ
• Sold Aug 2014£410,000 | 2 Bed Flat10, Southdown Avenue, London, W7 2AQ10, Southdown Avenue, London, W7 2AQ

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Agents in our network have reported 2 lettings within 720 metres of 23, Southdown Avenue across the last 2 years.

The newest of these is 16, Burnham Way, London, W13 9YE, a freehold house let by Leslie & Co in October 2025.

• 
  Let Oct 2025£ Undisclosed | 3 Bed House16, Burnham Way, London, W13 9YE16, Burnham Way, London, W13 9YE
• 
  Let Oct 2025£ Undisclosed | 1 Bed Flat8, Littlewood Close, London, W13 9XH8, Littlewood Close, London, W13 9XH

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

• 700

  m

  Fielding Primary School
• 900

  m

  Oaklands Primary School
• 1.2

  km

  Our Lady and St John's Catholic Primary School

• 300

  m

  Elthorne Park High School
• 1.0

  km

  Bolder Academy
• 1.0

  km

  Gunnersbury Catholic School

• 300

  m

  Boston Manor
• 900

  m

  Northfields
• 1.5

  km

  South Ealing

Ofcom's latest figures show ultrafast broadband available in this area.

Environment Agency data suggests this area has a very low risk of flooding.