Over the past 29 years, there have been 39 property sales recorded in the N20 9LL postcode area. The highest sale price reached £960,000, while the most recent sale was for a semi-detached house sold in December 2025 for £820,000.

The estimated average property value in N20 9LL currently stands at £809,399, which is roughly in line with the city average (within ±8%), suggesting property prices reflect broader market trends.

In terms of size, the average price per square metre is approximately £7,420.

Property prices in N20 9LL have risen by 0.7% over the past year , with a total increase of 14.5% over the past five years , and a long-term rise of 36.5% over the past decade .

The most common type of property sold in the area is semi-detached, making up around 85% of transactions , followed by terraced and flat.

Housing in N20 9LL is predominantly owner-occupied, with an estimated 58% of homes being lived in by the owners.

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Property Sales

1 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

Today
£699,310
streetscan.co.uk estimate
31 Jul 2006
£325,000

11 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

Today
£735,620
streetscan.co.uk estimate
26 Aug 2005
£329,300

13 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 5bed
📐 969 sq ft
Today
£732,646
streetscan.co.uk estimate
14 Mar 2023
£771,000
More details

17 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 5bed
📐 1098 sq ft
Today
£653,824
streetscan.co.uk estimate
29 May 2001
£190,000
More details

19 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 6bed
📐 1550 sq ft
Today
£880,183
streetscan.co.uk estimate
27 Feb 2009
£410,000
More details

21 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 6bed
📐 1367 sq ft
Today
£872,542
streetscan.co.uk estimate
19 Sep 2014
£660,000
15 Aug 2003
£284,000
View +1 more
More details

25 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 4bed
📐 1098 sq ft
Today
£777,122
streetscan.co.uk estimate
22 Mar 2016
£675,000
10 Aug 2000
£230,000
More details

29 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 4bed
📐 969 sq ft
Today
£813,051
streetscan.co.uk estimate
9 Dec 2025
£820,000
More details

3 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Terraced
🛏️ 6bed
📐 1249 sq ft
Today
£872,778
streetscan.co.uk estimate
9 Sep 2016
£785,500
23 Jan 2007
£343,000
More details

31 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 4bed
📐 963 sq ft
Today
£834,402
streetscan.co.uk estimate
19 Apr 2021
£772,000
14 Mar 2014
£575,000
View +4 more
More details

33 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 6bed
📐 2013 sq ft
Today
£756,980
streetscan.co.uk estimate
24 Mar 2000
£198,950
More details

35 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

Today
£866,250
streetscan.co.uk estimate
10 Feb 2006
£385,000
27 Mar 2002
£242,500

37 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 7bed
📐 1464 sq ft
Today
£1,018,776
streetscan.co.uk estimate
25 Jun 2021
£960,000
16 Nov 2012
£470,000
More details

41 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 5bed
📐 1270 sq ft
Today
£863,571
streetscan.co.uk estimate
18 May 2018
£775,000
22 Oct 2010
£445,000
View +1 more
More details

45 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

Today
£754,149
streetscan.co.uk estimate
28 Jan 2011
£423,000
6 Jun 1997
£146,000

47 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 5bed
📐 1206 sq ft
Today
£781,364
streetscan.co.uk estimate
4 Oct 2012
£477,500
More details

5 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Terraced
🛏️ 5bed
📐 980 sq ft
Today
£970,605
streetscan.co.uk estimate
18 Dec 2020
£895,000
23 Jan 2014
£485,000
More details

51 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 5bed
📐 963 sq ft
Today
£793,220
streetscan.co.uk estimate
10 Nov 2010
£450,000
More details

Flat 2, 55 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Flat
🛏️ bed
📐 926 sq ft
Today
£412,231
streetscan.co.uk estimate
31 Aug 2023
£450,000
More details

61 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Semi-detached
🛏️ 6bed
📐 1453 sq ft
Today
£778,558
streetscan.co.uk estimate
15 Dec 2011
£450,000
29 Sep 2010
£475,000
View +2 more
More details

7 St Margarets Avenue, London, Barnet, Greater London, N20 9LL

🏠 Terraced
🛏️ 4bed
📐 1033 sq ft
Today
£731,227
streetscan.co.uk estimate
13 Nov 2015
£615,000
More details

Area Insights

Data Sources

Properties at N20 9LL appear thirty-nine times in the Land Registry records, with the latest transaction recorded on 9 Dec 2025. It also has seventeen Energy Performance Certificates (EPC) entries, the earliest dating back to 23 Jul 2015. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.