Flat 3, 23, Belsize Park has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 26 Aug 2014.

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

Land Registry records and our Estate Agent network show 74 sales of comparable properties within 280 metres of Flat 3, 23, Belsize Park since 2010.

Most recently, Flat 3, 29, Belsize Park, London, NW3 4DX, a leasehold flat, sold at £670,000 on the 14th November 2025.

Read more about house prices in NW3.

• Sold Nov 2025£670,000 | 2 Bed FlatFlat 3, 29, Belsize Park, London, NW3 4DXFlat 3, 29, Belsize Park, London, NW3 4DX
• Sold Nov 2024£755,000 | 2 Bed FlatFlat 6, 24, Belsize Park, London, NW3 4DUFlat 6, 24, Belsize Park, London, NW3 4DU
• 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 Aug 2024£512,500 | 2 Bed Flat19, Mccrone Mews, London, NW3 5BG19, Mccrone Mews, London, NW3 5BG
• Sold May 2024£675,000 | 2 Bed Flat27B , Belsize Square, London, NW3 4HU27B , Belsize Square, London, NW3 4HU
• Sold Dec 2023£615,000 | 2 Bed FlatFlat 11, 27, Belsize Park, London, NW3 4DUFlat 11, 27, Belsize Park, London, NW3 4DU
• Sold Dec 2023£880,000 | 2 Bed FlatFlat 6, 33, Belsize Park, London, NW3 4DXFlat 6, 33, Belsize Park, London, NW3 4DX
• Sold Oct 2023£721,500 | 2 Bed FlatFlat 4, Claridge House 13, Belsize Park, London, NW3 4ESFlat 4, Claridge House 13, Belsize Park, London, NW3 4ES
• Sold Jul 2023£840,000 | 2 Bed FlatFlat 2, 50, Belsize Square, London, NW3 4HNFlat 2, 50, Belsize Square, London, NW3 4HN
• Sold Apr 2023£800,000 | 2 Bed FlatFlat 1, 11, Belsize Park, London, NW3 4ESFlat 1, 11, Belsize Park, London, NW3 4ES
• Sold Nov 2022£670,000 | 2 Bed Flat18, Mccrone Mews, London, NW3 5BG18, Mccrone Mews, London, NW3 5BG
• Sold May 2021£685,000 | 2 Bed Flat21, Mccrone Mews, London, NW3 5BG21, Mccrone Mews, London, NW3 5BG
• Sold Aug 2020£755,000 | 2 Bed FlatFlat 6, Claridge House 13, Belsize Park, London, NW3 4ESFlat 6, Claridge House 13, Belsize Park, London, NW3 4ES
• Sold Jan 2020£945,000 | 2 Bed FlatFlat 5, 26, Belsize Park, London, NW3 4DUFlat 5, 26, Belsize Park, London, NW3 4DU
• Sold Mar 2016£940,000 | 2 Bed Flat28B , Belsize Square, London, NW3 4HU28B , Belsize Square, London, NW3 4HU
• Sold Jun 2015£860,000 | 2 Bed FlatFlat 5, 24, Belsize Park, London, NW3 4DUFlat 5, 24, Belsize Park, London, NW3 4DU
• Sold Sep 2014£705,000 | 2 Bed FlatFlat 1, 27, Belsize Park, London, NW3 4DUFlat 1, 27, Belsize Park, London, NW3 4DU
• Sold Jun 2014£960,000 | 2 Bed Flat22A, Belsize Park, London, NW3 4DU22A, Belsize Park, London, NW3 4DU
• Sold Oct 2010£450,000 | 2 Bed FlatFlat 1, 25, Belsize Park, London, NW3 4DUFlat 1, 25, Belsize Park, London, NW3 4DU

Agents in our network have reported 2 lettings of comparable properties within 280 metres of Flat 3, 23, Belsize Park 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
• 
  Let agreed Mar 2024£ Undisclosed | 1 Bed Flat3A , Lancaster Drive, London, NW3 4EY3A , 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 3, 23, Belsize Park as the 212th largest and the 237th most expensive of the 423 addresses on Belsize Park, London, NW3.

Against the NW3 postcode district average, it is £596k less expensive than the typical property.

• Holy Trinity CofE Primary School, NW3

  500 m away
• Rosary Catholic Primary School

  500 m away
• Fitzjohn's Primary School

  600 m away

• The UCL Academy

  800 m away
• Harris Academy St John's Wood

  1.2 km away
• Haverstock School

  1.3 km away

• Belsize Park

  |

  600 m away
• Finchley Road

  |

  600 m away
• Swiss Cottage

  |

  600 m away

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