Sort by Most recent sale Address Highest price Highest £ per sqm Largest area Smallest area	Last sold	Price paid	Floor area (m²) Floor area (sq ft)	£ per m² £ per sq ft	Type	Sold	m² sq ft	£/m² £/sq ft
Flat 3 21, Belsize Avenue, Belsize Park, NW3 4BL	19 Mar 2025	£550,000	51 m² 548 sqft	£10,784 £1,001	Flat
Flat 4 27, Belsize Avenue, Belsize Park, NW3 4BL	06 Sep 2024	£625,000	58 m² 624 sqft	£10,775 £1,001	Flat
9b, Belsize Avenue, Belsize Park, NW3 4BL	20 Aug 2024	£885,000			Terrace
Flat 2 31, Belsize Avenue, Belsize Park, NW3 4BL	19 Apr 2024	£1,200,000			Flat
Flat 4 11, Belsize Avenue, Belsize Park, NW3 4BL -	25 Mar 2024	£1,085,000	77 m² 828 sqft	£14,090 £1,309	Flat
Flat 5 5, Belsize Avenue, Belsize Park, NW3 4BL -	05 Jul 2023	£525,000	40 m² 430 sqft	£13,125 £1,219	Flat
25c, Belsize Avenue, Belsize Park, NW3 4BL	11 Jan 2023	£1,420,000			Flat
Flat 24 15, Belsize Avenue, Belsize Park, NW3 4BL -	24 Nov 2022	£765,000	96 m² 1033 sqft	£7,968 £740	Flat (3 bed)
Flat 3 27, Belsize Avenue, Belsize Park, NW3 4BL	31 Aug 2022	£550,000	46 m² 495 sqft	£11,956 £1,110	Flat
Flat 2 5, Belsize Avenue, Belsize Park, NW3 4BL	17 Jun 2022	£560,000 B	50 m² 538 sqft	£11,200 £1,040	Flat
Flat 1 21, Belsize Avenue, Belsize Park, NW3 4BL	05 May 2022	£3,845,000 B	275 m² 2960 sqft	£13,981 £1,298	Flat
Lower Ground Floor Flat 7, Belsize Avenue, Belsize Park, NW3 4BL	30 Mar 2022	£1,007,500			Flat
Flat 1 31, Belsize Avenue, Belsize Park, NW3 4BL	30 Jun 2021	£1,850,000			Flat
Flat 7 5, Belsize Avenue, Belsize Park, NW3 4BL -	24 Jun 2021	£535,000	41 m² 441 sqft	£13,048 £1,212	Flat
23b, Belsize Avenue, Belsize Park, NW3 4BL	25 Mar 2021	£1,123,296			Flat
First Floor Flat 29, Belsize Avenue, Belsize Park, NW3 4BL	05 Feb 2021	£1,325,000			Flat
Flat 5 21, Belsize Avenue, Belsize Park, NW3 4BL -	22 Jan 2021	£622,300	63 m² 678 sqft	£9,877 £917	Flat
Flat 6 5, Belsize Avenue, Belsize Park, NW3 4BL	11 Dec 2019	£490,000	41 m² 441 sqft	£11,951 £1,110	Flat
Flat A 29, Belsize Avenue, Belsize Park, NW3 4BL -	21 Nov 2019	£1,465,000	123 m² 1323 sqft	£11,910 £1,106	Flat (2 bed)
9e, Belsize Avenue, Belsize Park, NW3 4BL	29 Aug 2019	£700,000			Flat
First Floor Flat 7, Belsize Avenue, Belsize Park, NW3 4BL	07 Jun 2019	£928,000			Flat
Flat 1 31, Belsize Avenue, Belsize Park, NW3 4BL	14 Jun 2017	£1,595,000			Flat
Flat 11 15, Belsize Avenue, Belsize Park, NW3 4BL	20 Jan 2017	£500,000 B	54 m² 581 sqft	£9,259 £860	Flat (1 bed)
Flat 9 15, Belsize Avenue, Belsize Park, NW3 4BL -	28 Nov 2016	£567,000	62 m² 667 sqft	£9,145 £849	Flat (1 bed)
9c, Belsize Avenue, Belsize Park, NW3 4BL	13 Jul 2016	£1,020,000			Flat
Flat 28 15, Belsize Avenue, Belsize Park, NW3 4BL -	19 Feb 2016	£817,500	82 m² 882 sqft	£9,969 £926	Flat (3 bed)
Flat 1 3, Belsize Avenue, Belsize Park, NW3 4BL	06 Aug 2015	£1,075,000	70 m² 753 sqft	£15,357 £1,426	Flat
Flat 3 1, Belsize Avenue, Belsize Park, NW3 4BL	27 Mar 2015	£970,000	79 m² 850 sqft	£12,278 £1,140	Flat
25c, Belsize Avenue, Belsize Park, NW3 4BL	20 Feb 2015	£1,435,000			Flat
Flat 20 15, Belsize Avenue, Belsize Park, NW3 4BL -	06 Feb 2015	£590,000	57 m² 613 sqft	£10,350 £961	Flat (1 bed)
Flat 3 21, Belsize Avenue	£550,000 Mar-2025	51 548	10,784 1,001
Flat 4 27, Belsize Avenue	£625,000 Sep-2024	58 624	10,775 1,001
9b, Belsize Avenue	£885,000 Aug-2024
Flat 2 31, Belsize Avenue	£1,200,000 Apr-2024
Flat 4 11, Belsize Avenue -	£1,085,000 Mar-2024	77 828	14,090 1,309
Flat 5 5, Belsize Avenue -	£525,000 Jul-2023	40 430	13,125 1,219
25c, Belsize Avenue	£1,420,000 Jan-2023
Flat 24 15, Belsize Avenue -	£765,000 Nov-2022	96 1033	7,968 740
Flat 3 27, Belsize Avenue	£550,000 Aug-2022	46 495	11,956 1,110
Flat 2 5, Belsize Avenue	£560,000 B Jun-2022	50 538	11,200 1,040
Flat 1 21, Belsize Avenue	£3,845,000 B May-2022	275 2960	13,981 1,298
Lower Ground Floor Flat 7, Belsize Avenue	£1,007,500 Mar-2022
Flat 1 31, Belsize Avenue	£1,850,000 Jun-2021
Flat 7 5, Belsize Avenue -	£535,000 Jun-2021	41 441	13,048 1,212
23b, Belsize Avenue	£1,123,296 Mar-2021
First Floor Flat 29, Belsize Avenue	£1,325,000 Feb-2021
Flat 5 21, Belsize Avenue -	£622,300 Jan-2021	63 678	9,877 917
Flat 6 5, Belsize Avenue	£490,000 Dec-2019	41 441	11,951 1,110
Flat A 29, Belsize Avenue -	£1,465,000 Nov-2019	123 1323	11,910 1,106
9e, Belsize Avenue	£700,000 Aug-2019
First Floor Flat 7, Belsize Avenue	£928,000 Jun-2019
Flat 1 31, Belsize Avenue	£1,595,000 Jun-2017
Flat 11 15, Belsize Avenue	£500,000 B Jan-2017	54 581	9,259 860
Flat 9 15, Belsize Avenue -	£567,000 Nov-2016	62 667	9,145 849
9c, Belsize Avenue	£1,020,000 Jul-2016
Flat 28 15, Belsize Avenue -	£817,500 Feb-2016	82 882	9,969 926
Flat 1 3, Belsize Avenue	£1,075,000 Aug-2015	70 753	15,357 1,426
Flat 3 1, Belsize Avenue	£970,000 Mar-2015	79 850	12,278 1,140
25c, Belsize Avenue	£1,435,000 Feb-2015
Flat 20 15, Belsize Avenue -	£590,000 Feb-2015	57 613	10,350 961

The data above for Belsize Avenue can be visualised as a scatter graph, this will show price trends over time.

The average price per square metre (per square foot) in Belsize Avenue, Belsize Park is £10,106 sqm (£938 per sq ft), this is calculated from the sold price of the 28 most recent sales.
The majority of homes in Belsize Park are now selling for between £10,250 and £12,950 per square metre (£952 and £1,203 per square foot) , find out more in this local analysis of NW3 4 (Belsize Park) house prices.
There are approximately 159 homes on Belsize Avenue, we would have expected about 22 sales each year given that in the UK people sell their homes on average once every 7 years.
In the last 4 years there have been 28 property sales in Belsize Avenue, averaging about 7 home sales per year .
The average size of all the properties on Belsize Avenue is 77 m2 (828 sqft).