Flat 35, 35-36, Belsize Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Feb 2023.

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

Since 2008 32 properties similar to Flat 35, 35-36, Belsize Square have sold within a radius of 260 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 5th December 2025, was Flat 2, 22, Belsize Avenue, London, NW3 4AU, a leasehold flat which sold for £545,000.

Read more about house prices in NW3.

• Sold Dec 2025£545,000 | 1 Bed FlatFlat 2, 22, Belsize Avenue, London, NW3 4AUFlat 2, 22, Belsize Avenue, London, NW3 4AU
• Sold Sep 2023£617,500 | 1 Bed FlatFlat D, 10, Belsize Square, London, NW3 4HTFlat D, 10, Belsize Square, London, NW3 4HT
• Sold Jul 2023£525,000 | 1 Bed FlatFlat 5, 5, Belsize Avenue, London, NW3 4BLFlat 5, 5, Belsize Avenue, London, NW3 4BL
• Sold Nov 2022£530,000 | 1 Bed FlatFlat 4, 26, Belsize Avenue, London, NW3 4AUFlat 4, 26, Belsize Avenue, London, NW3 4AU
• Sold Sep 2022£615,000 | 1 Bed FlatFlat 3, Claridge House 13, Belsize Park, London, NW3 4ESFlat 3, Claridge House 13, Belsize Park, London, NW3 4ES
• Sold Mar 2022£519,000 | 1 Bed Flat4E , Belsize Square, London, NW3 4HT4E , Belsize Square, London, NW3 4HT
• Sold Oct 2021£620,000 | 1 Bed Flat49A, Belsize Park Gardens, London, NW3 4JL49A, Belsize Park Gardens, London, NW3 4JL
• Sold Jun 2021£531,000 | 1 Bed FlatFlat 6, 26, Belsize Avenue, London, NW3 4AUFlat 6, 26, Belsize Avenue, London, NW3 4AU
• Sold Jun 2021£535,000 | 1 Bed FlatFlat 7, 5, Belsize Avenue, London, NW3 4BLFlat 7, 5, Belsize Avenue, London, NW3 4BL
• Sold Feb 2021£515,000 | 1 Bed Flat16D , Belsize Square, London, NW3 4HT16D , Belsize Square, London, NW3 4HT
• Sold Jan 2021£525,000 | 1 Bed Flat41D, Belsize Square, London, NW3 4HN41D, Belsize Square, London, NW3 4HN
• Sold Dec 2019£490,000 | 1 Bed FlatFlat 6, 5, Belsize Avenue, London, NW3 4BLFlat 6, 5, Belsize Avenue, London, NW3 4BL
• Sold Apr 2018£585,000 | 1 Bed Flat32C, Lambolle Road, London, NW3 4HR32C, Lambolle Road, London, NW3 4HR
• Sold Sep 2016£525,000 | 1 Bed FlatFlat 1, 42, Belsize Park Gardens, London, NW3 4LYFlat 1, 42, Belsize Park Gardens, London, NW3 4LY
• Sold Mar 2016£602,500 | 1 Bed Flat16G , Belsize Square, London, NW3 4HT16G , Belsize Square, London, NW3 4HT
• Sold Mar 2014£525,000 | 1 Bed FlatFlat 1, 16, Belsize Avenue, London, NW3 4AUFlat 1, 16, Belsize Avenue, London, NW3 4AU
• Sold Dec 2013£625,000 | 1 Bed FlatFlat E, 10, Belsize Square, London, NW3 4HTFlat E, 10, Belsize Square, London, NW3 4HT
• Sold Jun 2013£360,000 | 1 Bed FlatFlat 4, 5, Belsize Avenue, London, NW3 4BLFlat 4, 5, Belsize Avenue, London, NW3 4BL
• Sold Mar 2012£357,500 | 1 Bed FlatFlat 5, 38, Belsize Square, London, NW3 4HLFlat 5, 38, Belsize Square, London, NW3 4HL
• Sold Mar 2008£308,000 | 1 Bed FlatFlat 8, 17, Crossfield Road, London, NW3 4NTFlat 8, 17, Crossfield Road, London, NW3 4NT

Over the past 2 years our Estate Agent network has recorded 2 lets within 260 metres of Flat 35, 35-36, 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 35, 35-36, Belsize Square comes out as the 227th largest and the 229th most expensive in our analysis of the public data.

It is also £791k less expensive than the average property across the NW3 district.

• Rosary Catholic Primary School

  500 m away
• Holy Trinity CofE Primary School, NW3

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

  800 m away

• The UCL Academy

  700 m away
• Haverstock School

  1.1 km away
• Harris Academy St John's Wood

  1.2 km away

• Belsize Park

  |

  500 m away
• Swiss Cottage

  |

  600 m away
• Finchley Road

  |

  700 m away

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