Flat 1, 47, Belsize Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 Mar 2014.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

Flat 1, 47, Belsize Square last changed hands on 23rd May 2019, selling for £1,160,000. 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 14.5% since May 2019.

• Sold May 2019£1,160,000
• Sold May 2014£1,240,000

Land Registry records and our Estate Agent network show 59 sales of comparable properties within 260 metres of Flat 1, 47, Belsize Square since 2009.

Most recently, 17A, Crossfield Road, London, NW3 4NT, a leasehold flat, sold at £1,273,000 on the 22nd August 2025.

Read more about house prices in NW3.

• Sold Aug 2025£1,273,000 | 3 Bed Flat17A, Crossfield Road, London, NW3 4NT17A, Crossfield Road, London, NW3 4NT
• Sold Jun 2025£887,500 | 2 Bed Flat12B, Belsize Park Gardens, London, NW3 4LD12B, Belsize Park Gardens, London, NW3 4LD
• 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 Mar 2025£1,125,000 | 3 Bed FlatFlat 1, Jade House 12, Lancaster Grove, London, NW3 4NXFlat 1, Jade House 12, Lancaster Grove, London, NW3 4NX
• 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£910,500 | 2 Bed FlatFlat 2, 47, Belsize Square, London, NW3 4HNFlat 2, 47, Belsize Square, London, NW3 4HN
• Sold Mar 2024£950,000 | 3 Bed FlatFlat 6, 6, Strathray Gardens, London, NW3 4NYFlat 6, 6, Strathray Gardens, London, NW3 4NY
• Sold Dec 2023£865,000 | 3 Bed Flat1A, Lancaster Drive, London, NW3 4EY1A, Lancaster Drive, London, NW3 4EY
• Sold Aug 2022£1,510,000 | 3 Bed FlatFlat 1, 26, Belsize Avenue, London, NW3 4AUFlat 1, 26, Belsize Avenue, London, NW3 4AU
• Sold Jun 2022£900,000 | 3 Bed FlatFlat 10, Jade House 12, Lancaster Grove, London, NW3 4NXFlat 10, Jade House 12, Lancaster Grove, London, NW3 4NX
• Sold Sep 2021£985,000 | 3 Bed FlatFlat 1, 23, Belsize Park, London, NW3 4DUFlat 1, 23, Belsize Park, London, NW3 4DU
• 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£1,360,000 | 2 Bed Flat1A, Belsize Park Gardens, London, NW3 4LB1A, Belsize Park Gardens, London, NW3 4LB
• Sold Nov 2019£1,100,000 | 3 Bed FlatFlat C, 25, Lancaster Grove, London, NW3 4EXFlat C, 25, Lancaster Grove, London, NW3 4EX
• Sold Sep 2019£1,100,000 | 3 Bed FlatFlat 3A, Jade House 12, Lancaster Grove, London, NW3 4NXFlat 3A, Jade House 12, Lancaster Grove, London, NW3 4NX
• 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 2017£1,250,000 | 2 Bed Flat15C , Buckland Crescent, London, NW3 5DH15C , Buckland Crescent, London, NW3 5DH
• 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 Sep 2009£800,000 | 3 Bed FlatFlat B, 47, Belsize Square, London, NW3 4HNFlat B, 47, Belsize Square, London, NW3 4HN

Agents in our network have reported 2 lettings within 260 metres of Flat 1, 47, Belsize Square 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 1, 47, Belsize Square as the 112th largest and the 128th most expensive of the 264 addresses on Belsize Square, London, NW3.

Against the NW3 postcode district average, it is £353k less expensive than the typical property.

• Rosary Catholic Primary School

  500 m away
• Holy Trinity CofE Primary School, NW3

  600 m away
• Fitzjohn's Primary School

  700 m away

• The UCL Academy

  700 m away
• Harris Academy St John's Wood

  1.2 km away
• Haverstock School

  1.2 km away

• Belsize Park

  |

  500 m away
• Swiss Cottage

  |

  600 m away
• Finchley Road

  |

  700 m away

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