Flat 2, 1, Belsize Avenue has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Mar 2025.

The property is connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

Flat 2, 1, Belsize Avenue last changed hands on 20th December 2013, selling for £870,000. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 7.6% since December 2013.

• Sold Dec 2013£870,000
• Sold Aug 2000£250,000

Land Registry records and our Estate Agent network show 69 sales of comparable properties within 270 metres of Flat 2, 1, Belsize Avenue since 2014.

Most recently, 27D, Belsize Square, London, NW3 4HU, a leasehold flat, sold at £862,500 on the 30th January 2026.

Read more about house prices in NW3.

• Sold Jan 2026£862,500 | 3 Bed Flat27D, Belsize Square, London, NW3 4HU27D, Belsize Square, London, NW3 4HU
• Sold Jun 2025£887,500 | 2 Bed Flat12B, Belsize Park Gardens, London, NW3 4LD12B, Belsize Park Gardens, London, NW3 4LD
• Sold Mar 2025£877,000 | 2 Bed Flat49B, Belsize Avenue, London, NW3 4BN49B, Belsize Avenue, London, NW3 4BN
• Sold Mar 2025£855,000 | 2 Bed Flat4, Tudor Close, London, NW3 4AB4, Tudor Close, London, NW3 4AB
• Sold Mar 2025£857,000 | 2 Bed Flat46, Tudor Close, London, NW3 4AG46, Tudor Close, London, NW3 4AG
• Sold Feb 2025£1,135,000 | 2 Bed FlatFlat 3, 5, Belsize Avenue, London, NW3 4BLFlat 3, 5, Belsize Avenue, London, NW3 4BL
• Sold Sep 2024£910,500 | 2 Bed FlatFlat 2, 47, Belsize Square, London, NW3 4HNFlat 2, 47, Belsize Square, London, NW3 4HN
• Sold Sep 2024£800,000 | 2 Bed Flat19B, Belsize Park, London, NW3 4DU19B, Belsize Park, London, NW3 4DU
• Sold Aug 2024£885,000 | 2 Bed Flat9B , Belsize Avenue, London, NW3 4BL9B , Belsize Avenue, London, NW3 4BL
• Sold Mar 2024£1,085,000 | 2 Bed FlatFlat 4, 11, Belsize Avenue, London, NW3 4BLFlat 4, 11, Belsize Avenue, London, NW3 4BL
• Sold Jun 2023£935,000 | 2 Bed FlatFlat 9, 28, Belsize Park Gardens, London, NW3 4LHFlat 9, 28, Belsize Park Gardens, London, NW3 4LH
• Sold Dec 2021£800,000 | 3 Bed Flat56, Tudor Close, London, NW3 4AG56, Tudor Close, London, NW3 4AG
• Sold Sep 2021£1,180,000 | 3 Bed FlatFlat 1, 23, Belsize Park, London, NW3 4DUFlat 1, 23, Belsize Park, London, NW3 4DU
• Sold Mar 2021£1,360,000 | 2 Bed Flat1A, Belsize Park Gardens, London, NW3 4LB1A, Belsize Park Gardens, London, NW3 4LB
• Sold Jan 2020£945,000 | 2 Bed FlatFlat 5, 26, Belsize Park, London, NW3 4DUFlat 5, 26, Belsize Park, London, NW3 4DU
• Sold Nov 2019£1,250,000 | 2 Bed FlatFlat 3, 1, Belsize Park Gardens, London, NW3 4LBFlat 3, 1, Belsize Park Gardens, London, NW3 4LB
• Sold May 2019£1,160,000 | 3 Bed FlatFlat 1, 47, Belsize Square, London, NW3 4HNFlat 1, 47, Belsize Square, London, NW3 4HN
• Sold Oct 2017£1,232,000 | 3 Bed FlatFlat 2, 25, Belsize Park, London, NW3 4DUFlat 2, 25, Belsize Park, London, NW3 4DU
• Sold Jul 2016£1,020,000 | 2 Bed Flat9C , Belsize Avenue, London, NW3 4BL9C , Belsize Avenue, London, NW3 4BL
• Sold Jun 2014£960,000 | 2 Bed Flat22A, Belsize Park, London, NW3 4DU22A, Belsize Park, London, NW3 4DU

Agents in our network have reported 1 letting of a comparable property within 270 metres of Flat 2, 1, Belsize Avenue across the last 2 years.

The newest of these is 3B , Lancaster Drive, London, NW3 4EY, a leasehold flat let by Fine Living in February 2025.

• 
  Let agreed Feb 2025£ Undisclosed | 2 Bed Flat3B , Lancaster Drive, London, NW3 4EY3B , Lancaster Drive, London, NW3 4EY

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

Our analysis of the public data ranks Flat 2, 1, Belsize Avenue as the 167th largest and the 120th most expensive of the 446 addresses on Belsize Avenue, London, NW3.

Against the NW3 postcode district average, it is £429k less expensive than the typical property.

• 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

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