Flat 3, 4, Belsize Park has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 01 Sep 2022.

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

Flat 3, 4, Belsize Park last changed hands on 4th July 2025, selling for £1,177,000. 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 15.4% since July 2025.

• Sold Jul 2025£1,177,000

Land Registry records and our Estate Agent network show 64 sales of comparable properties within 280 metres of Flat 3, 4, Belsize Park since 2010.

Most recently, Flat E, 19, Belsize Park Gardens, London, NW3 4JG, a leasehold flat, sold at £1,325,000 on the 4th February 2026.

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£1,040,000 | 3 Bed Flat44A, Belsize Square, London, NW3 4HN44A, Belsize Square, London, NW3 4HN
• Sold Aug 2025£1,273,000 | 3 Bed Flat17A, Crossfield Road, London, NW3 4NT17A, Crossfield Road, London, NW3 4NT
• Sold Jan 2025£1,250,000 | 3 Bed Flat43D , Belsize Square, London, NW3 4HN43D , Belsize Square, London, NW3 4HN
• Sold Dec 2024£1,370,000 | 3 Bed Flat21B , Buckland Crescent, London, NW3 5DH21B , Buckland Crescent, London, NW3 5DH
• 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£1,590,000 | 3 Bed FlatFlat 3, 11, Adamson Road, London, NW3 3HXFlat 3, 11, Adamson Road, London, NW3 3HX
• Sold Oct 2022£1,210,000 | 3 Bed FlatFlat 6, 31, Adamson Road, London, NW3 3HTFlat 6, 31, Adamson Road, London, NW3 3HT
• Sold Aug 2022£1,330,000 | 3 Bed FlatFlat 4, 22, Belsize Square, London, NW3 4HTFlat 4, 22, Belsize Square, London, NW3 4HT
• 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 Feb 2022£1,600,000 | 3 Bed Flat6, Belsize Park Gardens, London, NW3 4LD6, Belsize Park Gardens, London, NW3 4LD
• Sold Apr 2021£1,082,500 | 3 Bed Flat27A, Buckland Crescent, London, NW3 5DH27A, Buckland Crescent, London, NW3 5DH
• Sold Dec 2019£1,050,000 | 3 Bed FlatFlat 2, 7, Buckland Crescent, London, NW3 5DHFlat 2, 7, Buckland Crescent, London, NW3 5DH
• Sold May 2019£1,160,000 | 3 Bed FlatFlat 1, 47, Belsize Square, London, NW3 4HNFlat 1, 47, Belsize Square, London, NW3 4HN
• Sold Feb 2019£1,162,000 | 3 Bed FlatFlat 7, 33, Belsize Park, London, NW3 4DXFlat 7, 33, Belsize Park, London, NW3 4DX
• Sold Mar 2018£1,160,000 | 3 Bed Flat44B , Belsize Square, London, NW3 4HN44B , Belsize Square, London, NW3 4HN
• Sold Oct 2017£1,232,000 | 3 Bed FlatFlat 2, 25, Belsize Park, London, NW3 4DUFlat 2, 25, Belsize Park, London, NW3 4DU
• Sold May 2015£1,230,500 | 3 Bed Flat43A, Belsize Square, London, NW3 4HN43A, Belsize Square, London, NW3 4HN
• Sold Apr 2010£410,000 | 3 Bed FlatFlat 7, 27, Belsize Park, London, NW3 4DUFlat 7, 27, Belsize Park, London, NW3 4DU

Agents in our network have reported 2 lettings within 280 metres of Flat 3, 4, Belsize Park 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 3, 4, Belsize Park as the 153rd largest and the 119th most expensive of the 423 addresses on Belsize Park, London, NW3.

Against the NW3 postcode district average, it is £201k less expensive than the typical property.

• Holy Trinity CofE Primary School, NW3

  400 m away
• Rosary Catholic Primary School

  700 m away
• Fitzjohn's Primary School

  700 m away

• The UCL Academy

  600 m away
• Harris Academy St John's Wood

  1.1 km away
• Haverstock School

  1.3 km away

• Swiss Cottage

  |

  400 m away
• Finchley Road

  |

  500 m away
• Belsize Park

  |

  700 m away

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