Flat 2, 31, Belsize Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 Jul 2023.

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

The most recent sale of Flat 2, 31, Belsize Avenue completed on 19th April 2024 at £1,200,000 and was recorded by HM Land Registry as a leasehold flat.

Since 1995 the property has sold 4 times.

Values of comparable properties have dropped by 16.2% over the period since April 2024.

• Sold Apr 2024£1,200,000
• Sold Sep 2002£475,000
• Sold Apr 1997£395,000

Since 2012 47 properties similar to Flat 2, 31, Belsize Avenue have sold within a radius of 270 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 18th February 2026, was Flat 3, Andrew Court 2, Wedderburn Road, London, NW3 5QE, a leasehold flat which sold for £1,255,555.

Read more about house prices in NW3.

• Sold Feb 2026£1,255,555 | 3 Bed FlatFlat 3, Andrew Court 2, Wedderburn Road, London, NW3 5QEFlat 3, Andrew Court 2, Wedderburn Road, London, NW3 5QE
• Sold Oct 2025£1,500,000 | 3 Bed FlatFlat 3, 29, Belsize Park Gardens, London, NW3 4JHFlat 3, 29, Belsize Park Gardens, London, NW3 4JH
• Sold Aug 2025£1,040,000 | 3 Bed Flat44A, Belsize Square, London, NW3 4HN44A, Belsize Square, London, NW3 4HN
• Sold Mar 2025£1,350,000 | 3 Bed FlatFlat 3, 11, Belsize Park, London, NW3 4ESFlat 3, 11, Belsize Park, London, NW3 4ES
• Sold Jan 2025£1,087,000 | 3 Bed Flat19D , Belsize Park, London, NW3 4DU19D , Belsize Park, London, NW3 4DU
• Sold Jan 2025£1,520,000 | 3 Bed FlatFlat 5, 13, Belsize Park Gardens, London, NW3 4JGFlat 5, 13, Belsize Park Gardens, London, NW3 4JG
• Sold Nov 2024£1,550,000 | 3 Bed Flat19C , Belsize Park, London, NW3 4DU19C , Belsize Park, London, NW3 4DU
• Sold Oct 2024£1,269,537 | 3 Bed Flat46A, Belsize Square, London, NW3 4HN46A, Belsize Square, London, NW3 4HN
• Sold Jul 2024£1,563,290 | 3 Bed FlatFlat 5, 42, Belsize Square, London, NW3 4HNFlat 5, 42, Belsize Square, London, NW3 4HN
• Sold May 2024£1,000,000 | 4 Bed FlatFlat 6, 23, Belsize Park, London, NW3 4DUFlat 6, 23, Belsize Park, London, NW3 4DU
• Sold Sep 2023£1,337,000 | 3 Bed FlatFlat 2, 29, Belsize Park Gardens, London, NW3 4JHFlat 2, 29, Belsize Park Gardens, London, NW3 4JH
• Sold Apr 2023£1,490,000 | 3 Bed FlatFlat 4, Andrew Court 2, Wedderburn Road, London, NW3 5QEFlat 4, Andrew Court 2, Wedderburn Road, London, NW3 5QE
• Sold Sep 2022£1,520,000 | 3 Bed FlatFlat 1, 14, Belsize Park, London, NW3 4ESFlat 1, 14, Belsize Park, London, NW3 4ES
• Sold Dec 2021£1,350,000 | 3 Bed FlatFlat 3, 6, Lyndhurst Gardens, London, NW3 5NRFlat 3, 6, Lyndhurst Gardens, London, NW3 5NR
• Sold Nov 2019£1,465,000 | 3 Bed Flat29A, Belsize Avenue, London, NW3 4BL29A, Belsize Avenue, London, NW3 4BL
• Sold Oct 2019£1,876,000 | 3 Bed FlatFlat 1, 13, Belsize Park Gardens, London, NW3 4JGFlat 1, 13, Belsize Park Gardens, London, NW3 4JG
• Sold Jul 2018£1,715,000 | 4 Bed Flat18A, Belsize Park, London, NW3 4DU18A, Belsize Park, London, NW3 4DU
• Sold Jun 2017£1,300,000 | 3 Bed Flat35A, Belsize Avenue, London, NW3 4BN35A, Belsize Avenue, London, NW3 4BN
• Sold Aug 2014£1,525,000 | 3 Bed FlatFlat 4, 12, Lyndhurst Gardens, London, NW3 5NRFlat 4, 12, Lyndhurst Gardens, London, NW3 5NR
• Sold May 2012£1,125,000 | 3 Bed Flat25B, Belsize Avenue, London, NW3 4BL25B, Belsize Avenue, London, NW3 4BL

Of the 446 addresses on Belsize Avenue, London, NW3, Flat 2, 31, Belsize Avenue comes out as the 45th largest and the 58th most expensive in our analysis of the public data.

It is also £35k more expensive than the average property across the NW3 district.

• Rosary Catholic Primary School

  400 m away
• Fitzjohn's Primary School

  600 m away
• Holy Trinity CofE Primary School, NW3

  600 m away

• The UCL Academy

  900 m away
• Haverstock School

  1.3 km away
• Harris Academy St John's Wood

  1.4 km away

• Belsize Park

  |

  400 m away
• Finchley Road

  |

  700 m away
• Hampstead Heath

  |

  700 m away

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