Flat 4, 27, Belsize Avenue has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Feb 2015.

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

According to HM Land Registry, Flat 4, 27, Belsize Avenue was last sold on 6th September 2024 for £625,000 and was recorded as a leasehold flat.

The property has had 2 sales since 1995.

Since September 2024, the market for similar properties has dropped by 13.0%.

According to the Land Registry and our network of Estate Agents, there have been 42 sales of properties similar to Flat 4, 27, Belsize Avenue within a radius of 270 metres since 2011.

The most recent example is Flat 5, 63, Belsize Avenue, London, NW3 4BN, a leasehold flat which sold for £725,000 on the 20th March 2026.

Read more about house prices in NW3.

• Sold Mar 2026£725,000 | 2 Bed FlatFlat 5, 63, Belsize Avenue, London, NW3 4BNFlat 5, 63, Belsize Avenue, London, NW3 4BN
• Sold Jul 2025£485,000 | 2 Bed FlatFlat 49, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 49, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Jun 2025£475,000 | 2 Bed FlatFlat 58, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 58, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Mar 2025£625,000 | 2 Bed FlatFlat 8, Wimborne Mansions , Glenloch Road, London, NW3 4DHFlat 8, Wimborne Mansions , Glenloch Road, London, NW3 4DH
• Sold Mar 2025£550,000 | 2 Bed FlatFlat 3, 21, Belsize Avenue, London, NW3 4BLFlat 3, 21, Belsize Avenue, London, NW3 4BL
• Sold Feb 2025£625,000 | 2 Bed FlatFlat 7, Wimborne Mansions , Glenloch Road, London, NW3 4DHFlat 7, Wimborne Mansions , Glenloch Road, London, NW3 4DH
• Sold Feb 2025£580,000 | 2 Bed FlatFlat 3, 49, Belsize Avenue, London, NW3 4BNFlat 3, 49, Belsize Avenue, London, NW3 4BN
• Sold Jan 2025£550,000 | 2 Bed Flat6 Banff House , Glenmore Road, London, NW3 4DG6 Banff House , Glenmore Road, London, NW3 4DG
• Sold Sep 2024£585,000 | 2 Bed FlatFlat 26, Hillfield Court, Belsize Avenue, London, NW3 4BJFlat 26, Hillfield Court, Belsize Avenue, London, NW3 4BJ
• Sold Apr 2024£520,000 | 2 Bed FlatFlat 67, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 67, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Oct 2023£344,000 | 2 Bed FlatFlat 54, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 54, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold Jun 2023£525,000 | 2 Bed FlatFlat 106, Hillfield Court, Belsize Avenue, London, NW3 4BEFlat 106, Hillfield Court, Belsize Avenue, London, NW3 4BE
• Sold May 2023£500,000 | 2 Bed FlatFlat 61, Hillfield Court, Belsize Avenue, London, NW3 4BGFlat 61, Hillfield Court, Belsize Avenue, London, NW3 4BG
• Sold May 2022£549,000 | 2 Bed FlatFlat 88, Hillfield Court, Belsize Avenue, London, NW3 4BEFlat 88, Hillfield Court, Belsize Avenue, London, NW3 4BE
• Sold Apr 2022£580,000 | 2 Bed FlatFlat 3, Wimborne Mansions , Glenloch Road, London, NW3 4DHFlat 3, Wimborne Mansions , Glenloch Road, London, NW3 4DH
• Sold Nov 2021£550,000 | 2 Bed FlatFlat 32, Hillfield Court, Belsize Avenue, London, NW3 4BJFlat 32, Hillfield Court, Belsize Avenue, London, NW3 4BJ
• Sold Sep 2021£577,500 | 2 Bed FlatFlat 6, 47, Belsize Avenue, London, NW3 4BNFlat 6, 47, Belsize Avenue, London, NW3 4BN
• Sold Jan 2017£500,000 | 2 Bed FlatFlat 11, 15, Belsize Avenue, London, NW3 4BLFlat 11, 15, Belsize Avenue, London, NW3 4BL
• Sold Jan 2017£525,000 | 2 Bed FlatFlat 7, 47, Belsize Avenue, London, NW3 4BNFlat 7, 47, Belsize Avenue, London, NW3 4BN
• Sold Jun 2011£313,000 | 2 Bed FlatFlat 1, 47, Belsize Avenue, London, NW3 4BNFlat 1, 47, Belsize Avenue, London, NW3 4BN

Belsize Avenue, London, NW3 has a total of 446 addresses. According to our analysis of all the public data, Flat 4, 27, Belsize Avenue is the 245th largest and the 312th most expensive property on the street.

When compared to the postcode district it is £800k less expensive than the average property in NW3.

• Rosary Catholic Primary School

  400 m away
• Fitzjohn's Primary School

  600 m away
• Holy Trinity CofE Primary School, NW3

  600 m away

• The UCL Academy

  900 m away
• Haverstock School

  1.3 km away
• Harris Academy St John's Wood

  1.4 km away

• Belsize Park

  |

  400 m away
• Finchley Road

  |

  700 m away
• Hampstead Heath

  |

  700 m away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.