Over the past 31 years, there have been 35 property sales recorded in the AL5 3BZ postcode area. The highest sale price reached £1,540,000, while the most recent sale was for a detached house sold in January 2026 for £860,000.

The estimated average property value in AL5 3BZ currently stands at £1,218,730, which is approximately 30.7% 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 £9,825.

Property prices in AL5 3BZ have risen by 3.7% over the past year , with a total increase of 19.1% over the past five years , and a long-term rise of 42.3% over the past decade .

The most common type of property sold in the area is detached, making up around 77% of transactions , followed by semi-detached.

Housing in AL5 3BZ is predominantly owner-occupied, with an estimated 90% of homes being lived in by the owners.

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Property Sales

12 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 5bed
📐 1098 sq ft
Today
£869,469
streetscan.co.uk estimate
30 Jan 2026
£860,000
7 Dec 2018
£705,000
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More details

16 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

Today
£1,310,316
streetscan.co.uk estimate
27 Jun 2000
£390,500
29 Oct 1997
£250,000
25 Oct 1996
£183,000

18 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 8bed
📐 1386 sq ft
Today
£1,328,715
streetscan.co.uk estimate
16 Dec 2010
£752,500
More details

2 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 3bed
📐 657 sq ft
Today
£496,031
streetscan.co.uk estimate
15 Jun 2015
£359,500
More details

20 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

Today
£1,530,303
streetscan.co.uk estimate
19 Jun 2006
£700,000
31 Aug 2000
£450,000

20A Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 9bed
📐 2379 sq ft
Today
£1,742,140
streetscan.co.uk estimate
26 Aug 2014
£1,185,000
25 Jul 1997
£335,000
More details

20B Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

Today
£997,720
streetscan.co.uk estimate
5 Jul 2001
£325,000
28 Sep 1999
£220,000

20C Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 6bed
📐 1399 sq ft
Today
£1,048,517
streetscan.co.uk estimate
10 Oct 2014
£735,000
30 Nov 2007
£550,000
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22 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 7bed
📐 1927 sq ft
Today
£1,507,171
streetscan.co.uk estimate
9 Dec 2024
£1,540,000
16 Jul 2019
£1,190,000
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More details

24A Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 9bed
📐 2530 sq ft
Today
£1,638,171
streetscan.co.uk estimate
25 Jul 2003
£665,000
More details

26 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Detached
🛏️ 8bed
📐 1991 sq ft
Today
£1,546,847
streetscan.co.uk estimate
29 Jan 2026
£1,530,000
More details

30 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

Today
£1,561,647
streetscan.co.uk estimate
27 Aug 1999
£385,000
29 Aug 1997
£265,000

4 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Semi-detached
🛏️ 7bed
📐 688 sq ft
Today
£1,304,293
streetscan.co.uk estimate
25 Jun 2012
£750,000
25 Apr 2008
£675,000
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More details

6 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

🏠 Semi-detached
🛏️ 8bed
📐 1367 sq ft
Today
£1,266,669
streetscan.co.uk estimate
19 May 2021
£1,095,000
23 May 2017
£940,055
View +1 more
More details

8 Roundwood Lane, Harpenden, St Albans, Hertfordshire, AL5 3BZ

Today
£460,486
streetscan.co.uk estimate
31 Jul 2001
£150,000

Area Insights

Data Sources

Properties at AL5 3BZ appear thirty-five times in the Land Registry records, with the latest transaction recorded on 30 Jan 2026. It also has ten Energy Performance Certificates (EPC) entries, the earliest dating back to 26 May 2010. 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.