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Sold prices · NW3

Belsize Avenue, London (NW3): what completed sales show

Belsize Avenue, London (NW3): 21 completed sales in the last 24 months, registered with HM Land Registry.

Postcodes on this street: NW3 4AE, NW3 4AU, NW3 4BE, NW3 4BG, NW3 4BH, NW3 4BJ, NW3 4BL, NW3 4BN

The evidence in one paragraph

Belsize Avenue, London (NW3): 21 completed sales in the last 24 months, registered with HM Land Registry. Flats here sold for a median of £700,000, about £886 per square foot of floor area. In Camden, average prices fell 10.6% in the 12 months to August 2026 (UK House Price Index).

Source: ValuQ (https://valuq.co.uk/sold-prices/nw3/belsize-avenue), from HM Land Registry completed sales, checked 12 October 2026.

Completed sales on Belsize Avenue by property type

TypeSalesMedian pricePer sq ft
Flats21£700,000£886

Across Camden, the average price was £798,486 in August 2026, down 10.6% on a year earlier (UK House Price Index).

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Homes on Belsize Avenue

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Show all 416 homes

Completed sales in the last 24 months

HomeCompletedPriceTypeFloor areaPer sq ft
54A Belsize AvenueNW3 4AE23 June 2026£949,000Flat, leaseholdNot yet on record–
Flat 108, Hillfield Court Belsize AvenueNW3 4BE15 June 2026£1,150,000Flat, leaseholdNot yet on record–
Flat 7, 27 Belsize AvenueNW3 4BL17 April 2026£700,000Flat, leasehold1,076 sq ft£650
Flat 5, 63 Belsize AvenueNW3 4BN20 March 2026£725,000Flat, leasehold614 sq ft£1,182
Flat 2, 22 Belsize AvenueNW3 4AU5 December 2025£545,000Flat, leasehold474 sq ft£1,151
Flat 27, Hillfield Court Belsize AvenueNW3 4BJ2 December 2025£575,000Flat, leasehold893 sq ft£644
Flat 70, Hillfield Court Belsize AvenueNW3 4BG28 November 2025£725,000Flat, leasehold818 sq ft£886
Flat 26, 15 Belsize AvenueNW3 4BL14 November 2025£780,000Flat, leasehold1,012 sq ft£771
Flat 11, 28 Belsize AvenueNW3 4AU24 October 2025£360,000Flat, leasehold484 sq ft£743
Flat 50, Hillfield Court Belsize AvenueNW3 4BG12 August 2025£1,175,000Flat, leasehold1,206 sq ft£975
Flat 49, Hillfield Court Belsize AvenueNW3 4BG1 July 2025£485,000Flat, leasehold624 sq ft£777
Flat 58, Hillfield Court Belsize AvenueNW3 4BG6 June 2025£475,000Flat, leasehold592 sq ft£802
35G Belsize AvenueNW3 4BN2 May 2025£947,500Flat, leaseholdNot yet on record–
Flat 2, 47 Belsize AvenueNW3 4BN31 March 2025£475,000Flat, leasehold506 sq ft£939
49B Belsize AvenueNW3 4BN27 March 2025£877,000Flat, leasehold775 sq ft£1,132
Flat 3, Hillfield Court Belsize AvenueNW3 4BH24 March 2025£420,000Flat, leasehold495 sq ft£848
Flat 3, 21 Belsize AvenueNW3 4BL19 March 2025£550,000Flat, leasehold549 sq ft£1,002
Flat 3, 5 Belsize AvenueNW3 4BL28 February 2025£1,135,000Flat, leasehold840 sq ft£1,352
Flat 3, 49 Belsize AvenueNW3 4BN18 February 2025£580,000Flat, leasehold538 sq ft£1,078
Flat 80, Hillfield Court Belsize AvenueNW3 4BE9 January 2025£625,000Flat, leasehold786 sq ft£795
Flat 1, The Porticos, 53 - 59 Belsize AvenueNW3 4BN28 October 2024£1,875,000Flat, leaseholdNot yet on record–

How these figures are worked out

Every price here is a completed sale registered with HM Land Registry; asking prices are never used. Floor areas come from each home's energy performance certificate, and the price per square foot is the price paid divided by that floor area. Choose any sale to open that home's page.

Sold prices show what homes have sold for, not what any one home is worth today. Condition, extensions and the plot all move a price, and only a local agent who has seen the home can allow for them.

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Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

Energy performance data © Crown copyright. Licensed under the Open Government Licence v3.0.

Contains HM Land Registry UK House Price Index data © Crown copyright. Licensed under the Open Government Licence v3.0.

The Land Registry registers most sales within a few months of completion, so the newest sales may not appear yet.