Over the past 30 years, there have been 43 property sales recorded in the AL5 5NF postcode area. The highest sale price reached £1,575,000, while the most recent sale was for a semi-detached house sold in August 2025 for £1,575,000.

The estimated average property value in AL5 5NF currently stands at £1,237,753, which is approximately 32.7% higher than the city average, indicating a potentially more desirable or in-demand location.

In terms of size, the average price per square metre is approximately £8,432.

Property prices in AL5 5NF have risen by 4.4% over the past year , with a total increase of 18.6% over the past five years , and a long-term rise of 42% over the past decade .

The most common type of property sold in the area is semi-detached, making up around 72% of transactions , followed by terraced and detached.

Housing in AL5 5NF is predominantly owner-occupied, with an estimated 69% of homes being lived in by the owners.

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Property Sales

11 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 7bed
📐 1572 sq ft
Today
£1,294,913
streetscan.co.uk estimate
12 Nov 2010
£707,000
More details

13 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Terraced
🛏️ 7bed
📐 1658 sq ft
Today
£1,299,268
streetscan.co.uk estimate
4 Oct 2013
£785,000
3 Oct 2008
£575,000
View +1 more
More details

15 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Terraced
🛏️ 7bed
📐 1830 sq ft
Today
£1,238,371
streetscan.co.uk estimate
28 Nov 2023
£1,150,000
18 Feb 2010
£456,500
More details

17 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 6bed
📐 1528 sq ft
Today
£1,287,277
streetscan.co.uk estimate
8 Nov 2023
£1,215,000
6 Mar 2015
£770,000
View +3 more
More details

1A Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ bed
📐 2303 sq ft
Today
£1,565,905
streetscan.co.uk estimate
21 Aug 2025
£1,575,000
31 Jan 2012
£350,000
More details

21 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 8bed
📐 1938 sq ft
Today
£1,721,667
streetscan.co.uk estimate
15 Jan 2014
£1,055,000
17 Aug 2011
£867,500
View +1 more
More details

23 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 9bed
📐 2110 sq ft
Today
£1,588,222
streetscan.co.uk estimate
30 Jun 2017
£1,314,550
21 Oct 2005
£755,000
View +2 more
More details

25 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

Today
£1,230,809
streetscan.co.uk estimate
17 Aug 1999
£280,000

27 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Detached
🛏️ 6bed
📐 1432 sq ft
Today
£1,116,827
streetscan.co.uk estimate
13 Oct 2000
£345,000
7 Aug 1997
£249,500
More details

29 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 9bed
📐 2088 sq ft
Today
£1,714,387
streetscan.co.uk estimate
20 Jul 2006
£785,000
19 Apr 1996
£38,500
More details

3 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

Today
£764,053
streetscan.co.uk estimate
24 Mar 1997
£125,000

31 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 8bed
📐 1948 sq ft
Today
£1,641,589
streetscan.co.uk estimate
21 Jun 2021
£1,435,000
5 Jul 2013
£1,085,000
View +2 more
More details

33 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 6bed
📐 1141 sq ft
Today
£1,157,846
streetscan.co.uk estimate
21 Jul 2025
£1,150,000
31 Jul 1998
£195,000
More details

35 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 5bed
📐 1141 sq ft
Today
£969,817
streetscan.co.uk estimate
22 Jan 2025
£967,000
21 Feb 2017
£849,160
View +2 more
More details

37 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

🏠 Semi-detached
🛏️ 5bed
📐 963 sq ft
Today
£1,065,931
streetscan.co.uk estimate
6 Jul 2012
£615,000
16 Oct 2001
£270,000
View +1 more
More details

5 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

Today
£1,143,507
streetscan.co.uk estimate
29 Mar 1999
£238,000

7 Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

Today
£1,300,280
streetscan.co.uk estimate
25 Jan 2001
£360,000
30 Jun 1998
£210,000

9A Cowper Road, Harpenden, St Albans, Hertfordshire, AL5 5NF

Today
£1,506,140
streetscan.co.uk estimate
29 Mar 1999
£340,000

Area Insights

Data Sources

Properties at AL5 5NF appear fourty-three times in the Land Registry records, with the latest transaction recorded on 21 Aug 2025. It also has thirteen Energy Performance Certificates (EPC) entries, the earliest dating back to 14 Apr 2011. 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.