Flat A, 44, Belsize Park has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 07 Aug 2015.

The property is not connected to mains gas and has high performance glazing. It is heated using a boiler and underfloor heating (mains gas).

Flat A, 44, Belsize Park last changed hands on 20th October 2015, selling for £2,975,000. The transaction was logged as a leasehold flat by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has dropped by 13.2% since October 2015.

• Sold Oct 2015£2,975,000

Land Registry records and our Estate Agent network show 14 sales of comparable properties within 290 metres of Flat A, 44, Belsize Park since 2011.

Most recently, Flat 16, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JY, a leasehold flat, sold at £1,760,000 on the 16th April 2026.

Read more about house prices in NW3.

• Sold Apr 2026£1,760,000 | 4 Bed FlatFlat 16, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JYFlat 16, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JY
• Sold Jul 2025£1,840,000 | 4 Bed Flat15D, Fitzjohns Avenue, London, NW3 5JY15D, Fitzjohns Avenue, London, NW3 5JY
• Sold May 2025£2,190,000 | 4 Bed FlatFlat 14, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JYFlat 14, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JY
• Sold Jun 2024£3,000,000 | 4 Bed FlatFlat 12, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JYFlat 12, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JY
• Sold Jun 2019£1,700,000 | 4 Bed Flat18A, Fitzjohns Avenue, London, NW3 5NA18A, Fitzjohns Avenue, London, NW3 5NA
• Sold Apr 2017£1,900,000 | 4 Bed FlatFlat D, 31, Lancaster Grove, London, NW3 4EXFlat D, 31, Lancaster Grove, London, NW3 4EX
• Sold Sep 2016£2,140,000 | 4 Bed FlatFlat 4, 4, Belsize Park, London, NW3 4ETFlat 4, 4, Belsize Park, London, NW3 4ET
• Sold Jan 2016£2,030,000 | 4 Bed FlatFlat 3, 71, Eton Avenue, London, NW3 3EUFlat 3, 71, Eton Avenue, London, NW3 3EU
• Sold Oct 2015£2,975,000 | 4 Bed FlatFlat A, 45, Belsize Park, London, NW3 4EEFlat A, 45, Belsize Park, London, NW3 4EE
• Sold May 2015£2,150,000 | 4 Bed FlatFlat 2, 42, Belsize Square, London, NW3 4HNFlat 2, 42, Belsize Square, London, NW3 4HN
• Sold Feb 2014£1,400,000 | 4 Bed Flat8B , Buckland Crescent, London, NW3 5DX8B , Buckland Crescent, London, NW3 5DX
• Sold Feb 2013£2,350,000 | 4 Bed FlatFlat 3, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JYFlat 3, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JY
• Sold Jan 2012£2,725,000 | 4 Bed FlatFlat 13, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JYFlat 13, De Laszlo House 3-7, Fitzjohns Avenue, London, NW3 5JY
• Sold Sep 2011£1,800,000 | 4 Bed FlatFlat A, 31, Lancaster Grove, London, NW3 4EXFlat A, 31, Lancaster Grove, London, NW3 4EX

Agents in our network have reported 1 letting within 290 metres of Flat A, 44, Belsize Park across the last 2 years.

The newest of these is 15C, Fitzjohns Avenue, London, NW3 5JY, a leasehold flat let by Fine Living in February 2025.

• 
  Let agreed Feb 2025£ Undisclosed | 3 Bed Flat15C, Fitzjohns Avenue, London, NW3 5JY15C, Fitzjohns Avenue, London, NW3 5JY

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Our analysis of the public data ranks Flat A, 44, Belsize Park as the 14th largest and the 19th most expensive of the 423 addresses on Belsize Park, London, NW3.

Against the NW3 postcode district average, it is £652k more expensive than the typical property.

• Holy Trinity CofE Primary School, NW3

  300 m away
• Fitzjohn's Primary School

  800 m away
• Rosary Catholic Primary School

  800 m away

• The UCL Academy

  500 m away
• Harris Academy St John's Wood

  1.0 km away
• Haverstock School

  1.4 km away

• Swiss Cottage

  |

  300 m away
• Finchley Road

  |

  400 m away
• South Hampstead

  |

  600 m away

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