Flat E, 44, Belsize Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Nov 2021.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

Flat E, 44, Belsize Avenue last changed hands on 5th September 2022, selling for £898,500. The transaction was logged as a leasehold flat by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has dropped by 16.9% since September 2022.

• Sold Sep 2022£898,500
• Sold Apr 2012£753,000
• Sold Jan 1997£185,000

Land Registry records and our Estate Agent network show 60 sales of comparable properties within 270 metres of Flat E, 44, Belsize Avenue since 2016.

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£1,175,000 | 3 Bed FlatFlat 50, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 50, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold May 2025£947,500 | 3 Bed Flat35G, Belsize Avenue, London, NW3 4BN35G, Belsize Avenue, London, NW3 4BN
• Sold Aug 2024£870,000 | 3 Bed FlatFlat 65, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 65, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Aug 2024£985,000 | 3 Bed FlatFlat 95, Hillfield Court, Belsize Avenue, London, NW3 4BEFlat 95, Hillfield Court, Belsize Avenue, London, NW3 4BE
• Sold Jun 2024£1,137,500 | 3 Bed FlatFlat 44, Belsize Court, Wedderburn Road, London, NW3 5QHFlat 44, Belsize Court, Wedderburn Road, London, NW3 5QH
• Sold Jun 2024£920,000 | 3 Bed FlatFlat B, 226, Haverstock Hill, London, NW3 2AEFlat B, 226, Haverstock Hill, London, NW3 2AE
• Sold May 2024£1,075,000 | 3 Bed FlatFlat 3, Belsize Court, Wedderburn Road, London, NW3 5QLFlat 3, Belsize Court, Wedderburn Road, London, NW3 5QL
• Sold Apr 2024£1,325,000 | 3 Bed FlatFlat 33, Belsize Court, Wedderburn Road, London, NW3 5QNFlat 33, Belsize Court, Wedderburn Road, London, NW3 5QN
• Sold Feb 2024£1,050,000 | 3 Bed FlatFlat 90, Hillfield Court, Belsize Avenue, London, NW3 4BEFlat 90, Hillfield Court, Belsize Avenue, London, NW3 4BE
• Sold Dec 2023£1,312,500 | 3 Bed FlatFlat 48, Belsize Court, Wedderburn Road, London, NW3 5QHFlat 48, Belsize Court, Wedderburn Road, London, NW3 5QH
• Sold Nov 2023£835,000 | 3 Bed FlatFlat 89, Hillfield Court, Belsize Avenue, London, NW3 4BEFlat 89, Hillfield Court, Belsize Avenue, London, NW3 4BE
• Sold Jul 2023£1,130,000 | 3 Bed FlatFlat 62, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 62, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Jan 2023£960,000 | 3 Bed Flat20, Tudor Close, London, NW3 4AG20, Tudor Close, London, NW3 4AG
• Sold Jan 2023£1,160,000 | 3 Bed FlatFlat 6, Glenloch Court, Glenmore Road, London, NW3 4DDFlat 6, Glenloch Court, Glenmore Road, London, NW3 4DD
• Sold Nov 2022£970,000 | 3 Bed FlatFlat 68, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 68, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Aug 2022£1,510,000 | 3 Bed FlatFlat 1, 26, Belsize Avenue, London, NW3 4AUFlat 1, 26, Belsize Avenue, London, NW3 4AU
• Sold Dec 2019£1,090,000 | 3 Bed FlatFlat 5, 46, Belsize Avenue, London, NW3 4AEFlat 5, 46, Belsize Avenue, London, NW3 4AE
• Sold Jul 2016£1,046,175 | 3 Bed FlatFlat 5, Glenloch Court, Glenmore Road, London, NW3 4DDFlat 5, Glenloch Court, Glenmore Road, London, NW3 4DD
• Sold Feb 2016£1,170,000 | 3 Bed FlatFlat 19, Hillfield Mansions, Haverstock Hill, London, NW3 4QRFlat 19, Hillfield Mansions, Haverstock Hill, London, NW3 4QR

Our analysis of the public data ranks Flat E, 44, Belsize Avenue as the 87th largest and the 107th most expensive of the 446 addresses on Belsize Avenue, London, NW3.

Against the NW3 postcode district average, it is £369k less expensive than the typical property.

• Rosary Catholic Primary School

  200 m away
• Fitzjohn's Primary School

  700 m away
• Fleet Primary School

  700 m away

• The UCL Academy

  1.0 km away
• Haverstock School

  1.2 km away
• Harris Academy St John's Wood

  1.5 km away

• Belsize Park

  |

  300 m away
• Hampstead Heath

  |

  600 m away
• Swiss Cottage

  |

  900 m away

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