40, Westside occupies a 259 m² plot as recorded by HM Land Registry.

All 26 other houses in this postcode have recorded plot sizes, and this one ranks as the 23rd largest.

40, Westside has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Jun 2012.

The property is not connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

40, Westside last changed hands on 9th January 2013, selling for £375,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 75.0% since January 2013.

• Sold Jan 2013£375,000
• Sold Jun 2003£100,000

Land Registry records and our Estate Agent network show 92 sales of comparable properties within 680 metres of 40, Westside since 2013.

Most recently, 49, Page Street, London, NW7 2EL, a freehold house, sold at £625,000 on the 19th December 2025.

Read more about house prices in NW4.

• Sold Dec 2025£625,000 | 3 Bed House49, Page Street, London, NW7 2EL49, Page Street, London, NW7 2EL
• Sold Dec 2025£620,000 | 4 Bed House23, Westside, London, NW4 4XD23, Westside, London, NW4 4XD
• Sold Oct 2025£700,000 | 3 Bed House30, Southfields, London, NW4 4NB30, Southfields, London, NW4 4NB
• Sold Jul 2025£710,000 | 4 Bed House1, Hall Lane, London, NW4 4TJ1, Hall Lane, London, NW4 4TJ
• Sold Feb 2025£625,000 | 4 Bed House24, Westside, London, NW4 4XB24, Westside, London, NW4 4XB
• Sold Jan 2025£645,000 | 4 Bed House17, Barford Close, London, NW4 4XG17, Barford Close, London, NW4 4XG
• Sold Oct 2024£525,000 | 3 Bed House39, Southfields, London, NW4 4LX39, Southfields, London, NW4 4LX
• Sold Apr 2023£565,000 | 4 Bed House47, Great North Way, London, NW4 1PT47, Great North Way, London, NW4 1PT
• Sold Sep 2022£650,000 | 3 Bed House71, Hall Lane, London, NW4 4TJ71, Hall Lane, London, NW4 4TJ
• Sold Aug 2022£495,000 | 5 Bed House23, Hall Lane, London, NW4 4TJ23, Hall Lane, London, NW4 4TJ
• Sold May 2021£600,000 | 4 Bed House461, Watford Way, London, NW4 4TR461, Watford Way, London, NW4 4TR
• Sold Oct 2019£550,000 | 4 Bed House9, Westside, London, NW4 4XD9, Westside, London, NW4 4XD
• Sold Aug 2019£600,000 | 3 Bed House30, Westside, London, NW4 4XB30, Westside, London, NW4 4XB
• Sold Oct 2018£500,000 | 4 Bed House50, Westside, London, NW4 4XB50, Westside, London, NW4 4XB
• Sold Sep 2016£625,000 | 4 Bed House11, Westside, London, NW4 4XD11, Westside, London, NW4 4XD
• Sold Jul 2016£543,000 | 4 Bed House453, Watford Way, London, NW4 4TR453, Watford Way, London, NW4 4TR
• Sold Nov 2015£545,000 | 4 Bed House38, Westside, London, NW4 4XB38, Westside, London, NW4 4XB
• Sold Nov 2013£400,000 | 4 Bed House25, Westside, London, NW4 4XD25, Westside, London, NW4 4XD
• Sold Nov 2013£432,500 | 3 Bed House34, Westside, London, NW4 4XB34, Westside, London, NW4 4XB
• Sold Aug 2013£475,000 | 3 Bed House16, Westside, London, NW4 4XB16, Westside, London, NW4 4XB

Our analysis of the public data ranks 40, Westside as the 26th largest and the 31st most expensive of the 46 addresses on Westside, London, NW4.

Against the NW4 postcode district average, it is £10k more expensive than the typical property.

• Blessed Dominic Catholic Primary School

  700 m away
• Sunnyfields Primary School

  900 m away
• Dollis Primary School

  1.1 km away

• Hasmonean High School for Girls

  500 m away
• St James' Catholic High School

  700 m away
• Copthall School

  1.0 km away

• Colindale

  |

  1.3 km away
• Mill Hill East

  |

  1.8 km away
• Hendon Central

  |

  1.9 km away

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