Flat 4, 22, Belsize Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 31 Mar 2015.

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 4, 22, Belsize Square completed on 15th August 2022 at £1,330,000 and was recorded by HM Land Registry as a leasehold flat.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 16.5% over the period since August 2022.

• Sold Aug 2022£1,330,000
• Sold Nov 2015£1,085,000

Since 2015 67 properties similar to Flat 4, 22, Belsize Square have sold within a radius of 280 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 4th February 2026, was Flat E, 19, Belsize Park Gardens, London, NW3 4JG, a leasehold flat which sold for £1,325,000.

Read more about house prices in NW3.

• Sold Feb 2026£1,325,000 | 3 Bed FlatFlat E, 19, Belsize Park Gardens, London, NW3 4JGFlat E, 19, Belsize Park Gardens, London, NW3 4JG
• Sold Aug 2025£1,273,000 | 3 Bed Flat17A, Crossfield Road, London, NW3 4NT17A, Crossfield Road, London, NW3 4NT
• Sold Jul 2025£1,177,000 | 3 Bed FlatFlat 3, 4, Belsize Park, London, NW3 4ETFlat 3, 4, Belsize Park, London, NW3 4ET
• Sold Jun 2025£1,150,000 | 3 Bed FlatFlat 4, 28, Belsize Park Gardens, London, NW3 4LHFlat 4, 28, Belsize Park Gardens, London, NW3 4LH
• Sold May 2025£1,100,000 | 3 Bed FlatFlat 10, Springfield Court, Eton Avenue, London, NW3 3ERFlat 10, Springfield Court, Eton Avenue, London, NW3 3ER
• Sold Dec 2024£1,370,000 | 3 Bed Flat21B , Buckland Crescent, London, NW3 5DH21B , Buckland Crescent, London, NW3 5DH
• Sold Dec 2024£1,325,000 | 3 Bed FlatFlat 11, Manor Mansions, Belsize Grove, London, NW3 4NBFlat 11, Manor Mansions, Belsize Grove, London, NW3 4NB
• Sold Nov 2024£1,090,000 | 3 Bed FlatFlat 5, 8, Belsize Square, London, NW3 4HTFlat 5, 8, Belsize Square, London, NW3 4HT
• Sold Oct 2024£1,162,000 | 3 Bed FlatFlat B, 31, Lancaster Grove, London, NW3 4EXFlat B, 31, Lancaster Grove, London, NW3 4EX
• Sold Sep 2024£980,000 | 3 Bed FlatFlat 12, Springfield Court, Eton Avenue, London, NW3 3ERFlat 12, Springfield Court, Eton Avenue, London, NW3 3ER
• Sold Sep 2024£980,000 | 3 Bed FlatFlat 1, Springfield Court, Eton Avenue, London, NW3 3ERFlat 1, Springfield Court, Eton Avenue, London, NW3 3ER
• Sold Apr 2021£960,000 | 3 Bed FlatFlat 51, Eton Court, Eton Avenue, London, NW3 3HJFlat 51, Eton Court, Eton Avenue, London, NW3 3HJ
• Sold Mar 2021£1,280,000 | 3 Bed FlatFlat 2, 20, Belsize Park Gardens, London, NW3 4LHFlat 2, 20, Belsize Park Gardens, London, NW3 4LH
• Sold Mar 2021£730,000 | 3 Bed Flat3B , Strathray Gardens, London, NW3 4PA3B , Strathray Gardens, London, NW3 4PA
• Sold Feb 2021£1,899,950 | 3 Bed Flat49B, Belsize Park Gardens, London, NW3 4JL49B, Belsize Park Gardens, London, NW3 4JL
• Sold Jun 2018£1,250,000 | 3 Bed Flat44A, Belsize Park Gardens, London, NW3 4LY44A, Belsize Park Gardens, London, NW3 4LY
• Sold Mar 2018£1,160,000 | 3 Bed Flat44B , Belsize Square, London, NW3 4HN44B , Belsize Square, London, NW3 4HN
• Sold Apr 2017£1,055,000 | 3 Bed FlatFlat 47, Eton Court, Eton Avenue, London, NW3 3HJFlat 47, Eton Court, Eton Avenue, London, NW3 3HJ
• Sold Sep 2015£1,295,000 | 3 Bed FlatFlat 2, 28, Belsize Park Gardens, London, NW3 4LHFlat 2, 28, Belsize Park Gardens, London, NW3 4LH
• Sold May 2015£1,230,500 | 3 Bed Flat43A, Belsize Square, London, NW3 4HN43A, Belsize Square, London, NW3 4HN

Over the past 2 years our Estate Agent network has recorded 2 lets within 280 metres of Flat 4, 22, Belsize Square.

The latest, in February 2025, was 3B , Lancaster Drive, London, NW3 4EY, a leasehold flat let by Fine Living.

• 
  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.

Of the 264 addresses on Belsize Square, London, NW3, Flat 4, 22, Belsize Square comes out as the 103rd largest and the 66th most expensive in our analysis of the public data.

It is also £135k less expensive than the average property across the NW3 district.

• Holy Trinity CofE Primary School, NW3

  500 m away
• Rosary Catholic Primary School

  600 m away
• St Paul's Church of England Primary School

  800 m away

• The UCL Academy

  600 m away
• Harris Academy St John's Wood

  1.1 km away
• Haverstock School

  1.2 km away

• Swiss Cottage

  |

  500 m away
• Belsize Park

  |

  600 m away
• Finchley Road

  |

  600 m away

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