HM Land Registry records the plot of land for 21, Belsize Park as measuring 543 m².

21, Belsize Park has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 23 Oct 2024.

The property is connected to mains gas and has high performance glazing. It is heated using air source heat pump (underfloor, electric, boiler and underfloor heating, mains gas).

Since 2008 566 properties have sold within 280 metres of 21, Belsize Park, per the Land Registry and our network of Estate Agents.

The latest, on the 4th July 2025, was 18E , Belsize Park, London, NW3 4DU, a leasehold flat which sold for £725,000.

Read more about house prices in NW3.

• Sold Jul 2025£725,000 | 2 Bed Flat18E , Belsize Park, London, NW3 4DU18E , Belsize Park, London, NW3 4DU
• Sold Jan 2025£1,087,000 | 3 Bed Flat19D , Belsize Park, London, NW3 4DU19D , Belsize Park, London, NW3 4DU
• Sold Nov 2024£755,000 | 2 Bed FlatFlat 6, 24, Belsize Park, London, NW3 4DUFlat 6, 24, Belsize Park, London, NW3 4DU
• Sold Nov 2024£1,550,000 | 3 Bed Flat19C , Belsize Park, London, NW3 4DU19C , Belsize Park, London, NW3 4DU
• Sold Sep 2024£625,000 | 2 Bed Flat19A, Belsize Park, London, NW3 4DU19A, Belsize Park, London, NW3 4DU
• Sold Sep 2024£800,000 | 2 Bed Flat19B, Belsize Park, London, NW3 4DU19B, Belsize Park, London, NW3 4DU
• Sold May 2024£1,000,000 | 4 Bed FlatFlat 6, 23, Belsize Park, London, NW3 4DUFlat 6, 23, Belsize Park, London, NW3 4DU
• 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 2019£1,710,000 | 4 Bed Flat19E , Belsize Park, London, NW3 4DU19E , Belsize Park, London, NW3 4DU
• Sold Jul 2018£1,715,000 | 4 Bed Flat18A, Belsize Park, London, NW3 4DU18A, Belsize Park, London, NW3 4DU
• Sold Jul 2018£1,550,000 | 3 Bed Flat18D , Belsize Park, London, NW3 4DU18D , Belsize Park, London, NW3 4DU
• Sold May 2018£2,847,500 | 5 Bed House41, Belsize Lane, London, NW3 5AU41, Belsize Lane, London, NW3 5AU
• Sold Nov 2017£960,000 | 2 Bed FlatFlat 3, 24, Belsize Park, London, NW3 4DUFlat 3, 24, Belsize Park, London, NW3 4DU
• Sold Jun 2015£860,000 | 2 Bed FlatFlat 5, 24, Belsize Park, London, NW3 4DUFlat 5, 24, Belsize Park, London, NW3 4DU
• Sold May 2015£3,550,000 | 5 Bed House43, Belsize Lane, London, NW3 5AU43, Belsize Lane, London, NW3 5AU
• Sold Jun 2014£960,000 | 2 Bed Flat22A, Belsize Park, London, NW3 4DU22A, Belsize Park, London, NW3 4DU
• Sold Dec 2009£465,000 | 2 Bed FlatFlat 4, 24, Belsize Park, London, NW3 4DUFlat 4, 24, Belsize Park, London, NW3 4DU
• Sold Sep 2009£1,560,000 | 5 Bed House49, Belsize Lane, London, NW3 5AU49, Belsize Lane, London, NW3 5AU
• Sold Dec 2008£155,000 | 1 Bed Flat24B , Belsize Park, London, NW3 4DU24B , Belsize Park, London, NW3 4DU
• Sold Sep 2008£1,160,000 | 4 Bed Flat18C , Belsize Park, London, NW3 4DU18C , Belsize Park, London, NW3 4DU

Over the past 2 years our Estate Agent network has recorded 2 lets within 280 metres of 21, Belsize Park.

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 423 addresses on Belsize Park, London, NW3, 21, Belsize Park comes out as the 2nd largest and the 2nd most expensive in our analysis of the public data.

It is also £3.438m more expensive than the average property across the NW3 district.

• 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

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