Over the past 30 years, there have been 41 property sales recorded in the L21 9NN postcode area. The highest sale price reached £170,000, while the most recent sale was for a terraced house sold in October 2025 for £170,000.

The estimated average property value in L21 9NN currently stands at £180,113, which is approximately 26.4% lower than the city average - making it a relatively affordable option for buyers.

In terms of size, the average price per square metre is approximately £2,524.

Property prices in L21 9NN have risen by 10.1% over the past year , with a total increase of 41.6% over the past five years , and a long-term rise of 63.3% over the past decade .

The most common type of property sold in the area is terraced, making up around 80% of transactions , followed by semi-detached.

Housing in L21 9NN is predominantly owner-occupied, with an estimated 83% of homes being lived in by the owners.

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Property Sales

1 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

Today
£227,169
streetscan.co.uk estimate
20 Jul 2000
£53,500
27 Aug 1999
£33,000

10 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 3bed
📐 657 sq ft
Today
£177,408
streetscan.co.uk estimate
28 Mar 2024
£157,000
22 May 2013
£118,000
More details

12 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 4bed
📐 700 sq ft
Today
£185,673
streetscan.co.uk estimate
11 Aug 2014
£111,000
26 May 2005
£115,000
More details

14 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 4bed
📐 710 sq ft
Today
£188,488
streetscan.co.uk estimate
31 Jul 2015
£112,000
28 Sep 2001
£50,000
View +1 more
More details

16 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Semi-detached
🛏️ 4bed
📐 678 sq ft
Today
£170,053
streetscan.co.uk estimate
2 Nov 2018
£121,400
3 Nov 2017
£118,000
View +1 more
More details

17 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 5bed
📐 764 sq ft
Today
£174,054
streetscan.co.uk estimate
9 Aug 2021
£140,000
1 Sep 2016
£120,000
View +1 more
More details

18 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

Today
£214,000
streetscan.co.uk estimate
29 Jun 2001
£53,500

20 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 4bed
📐 710 sq ft
Today
£98,459
streetscan.co.uk estimate
7 Feb 2025
£94,000
More details

21 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Semi-detached
🛏️ 5bed
📐 829 sq ft
Today
£152,984
streetscan.co.uk estimate
28 Nov 2023
£139,000
17 Jan 2005
£105,000
More details

26 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

Today
£217,657
streetscan.co.uk estimate
24 Jun 2011
£124,995
29 Sep 2000
£48,000

27 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 5bed
📐 764 sq ft
Today
£234,871
streetscan.co.uk estimate
15 May 2004
£108,500
17 Oct 2000
£51,000
View +1 more
More details

29 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 5bed
📐 732 sq ft
Today
£192,598
streetscan.co.uk estimate
12 Oct 2012
£112,000
21 Feb 2003
£68,950
View +1 more
More details

4 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 4bed
📐 700 sq ft
Today
£193,401
streetscan.co.uk estimate
27 Jan 2017
£120,000
30 Nov 2012
£111,500
View +3 more
More details

5 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

Today
£198,927
streetscan.co.uk estimate
5 Sep 2005
£115,500
14 Apr 2000
£45,000

6 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 4bed
📐 710 sq ft
Today
£161,440
streetscan.co.uk estimate
10 Jun 2021
£130,000
28 Apr 2017
£116,000
More details

7 Alton Avenue, Liverpool, Sefton, Merseyside, L21 9NN

🏠 Terraced
🛏️ 5bed
📐 807 sq ft
Today
£173,778
streetscan.co.uk estimate
24 Oct 2025
£170,000
24 May 2023
£150,000
View +3 more
More details

Area Insights

Data Sources

Properties at L21 9NN appear fourty-one times in the Land Registry records, with the latest transaction recorded on 24 Oct 2025. It also has twelve Energy Performance Certificates (EPC) entries, the earliest dating back to 7 Mar 2014. 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.