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GR

NW3 4BL

Belsize Avenue, London

Median, last 3 years
£780,000
9 sales, Jun 2023 – May 2026
Last standard sale
£700,000
17 Apr 2026
Standard sales
162
since 1995 (+4 additional entries)
NW3 district median
£985,000
482 sales, 12 months to May 2026

By property type, Jun 2023 – May 2026: Flats median £740,000 (8 sales) · Terraced sold for £885,000

Medians count standard sales only (Price Paid category A). Additional entries (category B) - repossessions, buy-to-lets with an identifiable mortgage, and purchases by companies and other non-private buyers - are listed below but left out.

Median price by year

£399k £798k £1196k £1595k 2012: £1,027,500 median, 4 sales 2013: £627,500 median, 4 sales 2014: £475,000 median, 4 sales 2014 2015: £970,000 median, 5 sales 2016: £918,750 median, 4 sales 2017: £1,595,000 median, 1 sale 2017 2019: £814,000 median, 4 sales 2020: £500,000 median, 1 sale 2020 2021: £1,123,296 median, 5 sales 2022: £765,000 median, 3 sales 2023: £972,500 median, 2 sales 2023 2024: £985,000 median, 4 sales 2025: £780,000 median, 3 sales 2026 (January to August): £700,000 median, 1 sale 2026

2012 to 2026. Every year since 1995 is in the figures below.

The paler 2026 bar covers January to August only, and its latest months are still filling in as sales are registered.

Paler bars rest on fewer than three sales, so they show which homes sold more than how prices moved.

Show the figures
Median sale price and number of sales by year
Year Median Sales
2026 (to August) (few sales) £700,000 1
2025 £780,000 3
2024 £985,000 4
2023 (few sales) £972,500 2
2022 £765,000 3
2021 £1,123,296 5
2020 (few sales) £500,000 1
2019 £814,000 4
2017 (few sales) £1,595,000 1
2016 £918,750 4
2015 £970,000 5
2014 £475,000 4
2013 £627,500 4
2012 £1,027,500 4
2011 £790,000 4
2010 £556,500 6
2009 £512,500 8
2008 £650,000 3
2007 £382,500 6
2006 £430,000 5
2005 £382,550 7
2004 £378,400 9
2003 £256,000 6
2002 £235,000 7
2001 £258,750 8
2000 £265,000 6
1999 £201,000 10
1998 £167,000 10
1997 £165,000 9
1996 £147,000 12
1995 (few sales) £145,000 1

Sale history (166 records · 50 homes sold more than once)

Address Price
FLAT 7, 27, BELSIZE AVENUE
17 Apr 2026 · Flat / maisonette · Leasehold
Previously £250,000 (Aug 2005) · +180%
£700,000
FLAT 26, 15, BELSIZE AVENUE
14 Nov 2025 · Flat / maisonette · Leasehold
Previously £420,000 (Jun 2009) · +86%
£780,000
FLAT 3, 21, BELSIZE AVENUE
19 Mar 2025 · Flat / maisonette · Leasehold
£550,000
FLAT 3, 5, BELSIZE AVENUE
28 Feb 2025 · Flat / maisonette · Leasehold
Previously £605,000 (Sep 2009) · +88%
£1,135,000
FLAT 4, 27, BELSIZE AVENUE
6 Sep 2024 · Flat / maisonette · Leasehold
Previously £168,500 (Feb 1999) · +271%
£625,000
9B, BELSIZE AVENUE
20 Aug 2024 · Terraced · Leasehold
£885,000
FLAT 2, 31, BELSIZE AVENUE
19 Apr 2024 · Flat / maisonette · Leasehold
Previously £475,000 (Sep 2002) · +153%
£1,200,000
FLAT 4, 11, BELSIZE AVENUE
25 Mar 2024 · Flat / maisonette · Leasehold
Previously £1,100,250 (Mar 2016) · −1%
£1,085,000
FLAT 5, 5, BELSIZE AVENUE
5 Jul 2023 · Flat / maisonette · Leasehold
Previously £465,000 (Jul 2014) · +13%
£525,000
25C, BELSIZE AVENUE
11 Jan 2023 · Flat / maisonette · Leasehold
Previously £1,435,000 (Feb 2015) · −1%
£1,420,000
FLAT 24, 15, BELSIZE AVENUE
24 Nov 2022 · Flat / maisonette · Leasehold
Previously £238,800 (Feb 2007) · +220%
£765,000
FLAT 3, 27, BELSIZE AVENUE
31 Aug 2022 · Flat / maisonette · Leasehold
Previously £148,000 (Jul 1997) · +272%
£550,000
FLAT 2, 5, BELSIZE AVENUE Cat B
17 Jun 2022 · Flat / maisonette · Leasehold
Previously £500,000 (Mar 2020)
£560,000
FLAT 1, 21, BELSIZE AVENUE Cat B
5 May 2022 · Flat / maisonette · Leasehold
Previously £3,037,500 (Jan 2012)
£3,845,000
LOWER GROUND FLOOR FLAT, 7, BELSIZE AVENUE
30 Mar 2022 · Flat / maisonette · Leasehold
Previously £678,000 (Jul 2010) · +49%
£1,007,500
FLAT 1, 31, BELSIZE AVENUE
30 Jun 2021 · Flat / maisonette · Leasehold
Previously £1,595,000 (Jun 2017) · +16%
£1,850,000
FLAT 7, 5, BELSIZE AVENUE
24 Jun 2021 · Flat / maisonette · Leasehold
Previously £315,000 (Apr 2011) · +70%
£535,000
23B, BELSIZE AVENUE
25 Mar 2021 · Flat / maisonette · Leasehold
Previously £1,030,000 (Jun 2011) · +9%
£1,123,296
FIRST FLOOR FLAT, 29, BELSIZE AVENUE
5 Feb 2021 · Flat / maisonette · Leasehold
Previously £750,000 (Jan 2011) · +77%
£1,325,000
FLAT 5, 21, BELSIZE AVENUE
22 Jan 2021 · Flat / maisonette · Leasehold
Previously £435,000 (Aug 2010) · +43%
£622,300
FLAT 2, 5, BELSIZE AVENUE
18 Mar 2020 · Flat / maisonette · Leasehold
Previously £440,000 (Jul 2015) · +14%
£500,000
FLAT 6, 5, BELSIZE AVENUE
11 Dec 2019 · Flat / maisonette · Leasehold
Previously £170,000 (Mar 2001) · +188%
£490,000
FLAT A, 29, BELSIZE AVENUE
21 Nov 2019 · Flat / maisonette · Leasehold
Previously £266,000 (Jan 1999) · +451%
£1,465,000
9E, BELSIZE AVENUE
29 Aug 2019 · Flat / maisonette · Leasehold
£700,000
FIRST FLOOR FLAT, 7, BELSIZE AVENUE
7 Jun 2019 · Flat / maisonette · Leasehold
Previously £785,000 (Nov 2009) · +18%
£928,000
FLAT 1, 31, BELSIZE AVENUE
14 Jun 2017 · Flat / maisonette · Leasehold
£1,595,000
FLAT 11, 15, BELSIZE AVENUE Cat B
20 Jan 2017 · Flat / maisonette · Leasehold
£500,000
FLAT 9, 15, BELSIZE AVENUE
28 Nov 2016 · Flat / maisonette · Leasehold
Previously £405,000 (Jun 2013) · +40%
£567,000
9C, BELSIZE AVENUE
13 Jul 2016 · Flat / maisonette · Leasehold
£1,020,000
FLAT 4, 11, BELSIZE AVENUE
29 Mar 2016 · Flat / maisonette · Leasehold
Previously £449,000 (Oct 2003) · +145%
£1,100,250
FLAT 28, 15, BELSIZE AVENUE
19 Feb 2016 · Flat / maisonette · Leasehold
Previously £350,000 (Sep 2009) · +134%
£817,500
FLAT 1, 3, BELSIZE AVENUE
6 Aug 2015 · Flat / maisonette · Leasehold
Previously £166,000 (Aug 1996) · +548%
£1,075,000
FLAT 2, 5, BELSIZE AVENUE
3 Jul 2015 · Flat / maisonette · Leasehold
Previously £235,000 (Jul 2002) · +87%
£440,000
FLAT 3, 1, BELSIZE AVENUE
27 Mar 2015 · Flat / maisonette · Leasehold
Previously £820,000 (Mar 2014) · +18%
£970,000
25C, BELSIZE AVENUE
20 Feb 2015 · Flat / maisonette · Leasehold
Previously £830,000 (Jun 2011) · +73%
£1,435,000
FLAT 20, 15, BELSIZE AVENUE
6 Feb 2015 · Flat / maisonette · Leasehold
Previously £375,000 (Mar 2012) · +57%
£590,000
FLAT 5, 5, BELSIZE AVENUE
31 Jul 2014 · Flat / maisonette · Leasehold
Previously £180,000 (Sep 2000) · +158%
£465,000
FLAT 3, 1, BELSIZE AVENUE
10 Mar 2014 · Flat / maisonette · Leasehold
Previously £300,000 (May 2001) · +173%
£820,000
FLAT 5, 15, BELSIZE AVENUE Cat B
10 Mar 2014 · Other · Leasehold
£460,000
FLAT 5, 15, BELSIZE AVENUE
10 Mar 2014 · Flat / maisonette · Leasehold
£460,000
THIRD FLOOR FLAT, 23, BELSIZE AVENUE
31 Jan 2014 · Flat / maisonette · Leasehold
Previously £228,000 (May 2005) · +113%
£485,000
FLAT 2, 1, BELSIZE AVENUE
20 Dec 2013 · Flat / maisonette · Leasehold
Previously £250,000 (Aug 2000) · +248%
£870,000
BASEMENT FLAT, 3, BELSIZE AVENUE
2 Jul 2013 · Flat / maisonette · Leasehold
Previously £333,500 (Oct 2004) · +155%
£850,000
FLAT 4, 5, BELSIZE AVENUE
19 Jun 2013 · Flat / maisonette · Leasehold
Previously £154,500 (Jul 1999) · +133%
£360,000
FLAT 9, 15, BELSIZE AVENUE
11 Jun 2013 · Flat / maisonette · Leasehold
Previously £222,000 (Mar 2003) · +82%
£405,000
25B, BELSIZE AVENUE
25 May 2012 · Flat / maisonette · Leasehold
Previously £875,000 (Aug 2007) · +29%
£1,125,000
FLAT 20, 15, BELSIZE AVENUE
30 Mar 2012 · Flat / maisonette · Leasehold
£375,000
23A, BELSIZE AVENUE
22 Mar 2012 · Flat / maisonette · Leasehold
Previously £750,000 (Jul 2006) · +24%
£930,000
FLAT 1, 21, BELSIZE AVENUE
27 Jan 2012 · Flat / maisonette · Leasehold
Previously £450,000 (Apr 1998) · +575%
£3,037,500
23B, BELSIZE AVENUE
30 Jun 2011 · Flat / maisonette · Leasehold
Previously £610,000 (Oct 2004) · +69%
£1,030,000

Cat B An additional Price Paid entry (category B): a repossession, a buy-to-let with an identifiable mortgage, a purchase by a company or other non-private buyer, or a sale of another kind of property. Left out of every average.