18D, Belsize Park has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 May 2021.

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

The most recent sale of 18D, Belsize Park completed on 12th July 2018 at £1,550,000 and was recorded by HM Land Registry as a leasehold flat.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 23.0% over the period since July 2018.

• Sold Jul 2018£1,550,000
• Sold Apr 2013£1,431,025

Since 2010 38 properties similar to 18D, Belsize Park have sold within a radius of 270 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 4th February 2026, was Flat E, 19, Belsize Park Gardens, London, NW3 4JG, a leasehold flat which sold for £1,325,000.

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 Dec 2025£1,200,000 | 3 Bed FlatFlat 4, Roscommon House 2, Lyndhurst Gardens, London, NW3 5NPFlat 4, Roscommon House 2, Lyndhurst Gardens, London, NW3 5NP
• Sold Aug 2025£1,050,000 | 3 Bed Flat76, Belsize Lane, London, NW3 5BJ76, Belsize Lane, London, NW3 5BJ
• Sold Aug 2025£1,040,000 | 3 Bed Flat44A, Belsize Square, London, NW3 4HN44A, Belsize Square, London, NW3 4HN
• Sold Jul 2025£1,177,000 | 3 Bed FlatFlat 3, 4, Belsize Park, London, NW3 4ETFlat 3, 4, Belsize Park, London, NW3 4ET
• Sold May 2025£947,500 | 3 Bed Flat35G, Belsize Avenue, London, NW3 4BN35G, Belsize Avenue, London, NW3 4BN
• Sold Jan 2025£1,087,000 | 3 Bed Flat19D , Belsize Park, London, NW3 4DU19D , Belsize Park, London, NW3 4DU
• Sold Jan 2025£1,250,000 | 3 Bed Flat43D , Belsize Square, London, NW3 4HN43D , Belsize Square, London, NW3 4HN
• Sold Dec 2024£1,835,000 | 3 Bed FlatFlat 2, 3, Nutley Terrace, London, NW3 5BXFlat 2, 3, Nutley Terrace, London, NW3 5BX
• Sold Nov 2024£1,550,000 | 3 Bed Flat19C , Belsize Park, London, NW3 4DU19C , Belsize Park, London, NW3 4DU
• Sold Oct 2024£1,269,537 | 3 Bed Flat46A, Belsize Square, London, NW3 4HN46A, Belsize Square, London, NW3 4HN
• Sold May 2024£594,000 | 3 Bed Flat27C , Belsize Square, London, NW3 4HU27C , Belsize Square, London, NW3 4HU
• Sold Aug 2022£1,510,000 | 3 Bed FlatFlat 1, 26, Belsize Avenue, London, NW3 4AUFlat 1, 26, Belsize Avenue, London, NW3 4AU
• Sold Feb 2022£1,600,000 | 3 Bed Flat6, Belsize Park Gardens, London, NW3 4LD6, Belsize Park Gardens, London, NW3 4LD
• Sold Mar 2018£1,160,000 | 3 Bed Flat44B , Belsize Square, London, NW3 4HN44B , Belsize Square, London, NW3 4HN
• Sold Oct 2016£1,300,000 | 3 Bed Flat1 Avenue House, Belsize Park Gardens, London, NW3 4LA1 Avenue House, Belsize Park Gardens, London, NW3 4LA
• Sold May 2015£1,230,500 | 3 Bed Flat43A, Belsize Square, London, NW3 4HN43A, Belsize Square, London, NW3 4HN
• Sold Mar 2011£932,000 | 3 Bed Flat28C , Belsize Square, London, NW3 4HU28C , Belsize Square, London, NW3 4HU
• Sold Jun 2010£960,000 | 3 Bed FlatFlat 1, 1, Belsize Avenue, London, NW3 4BLFlat 1, 1, Belsize Avenue, London, NW3 4BL
• Sold Apr 2010£410,000 | 3 Bed FlatFlat 7, 27, Belsize Park, London, NW3 4DUFlat 7, 27, Belsize Park, London, NW3 4DU

Over the past 2 years our Estate Agent network has recorded 2 lets within 270 metres of 18D, 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, 18D, Belsize Park comes out as the 93rd largest and the 127th most expensive in our analysis of the public data.

It is also £235k less 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.