Over the past 30 years, there have been 58 property sales recorded in the AL5 3AS postcode area. The highest sale price reached £1,260,000, while the most recent sale was for a terraced house sold in August 2025 for £685,000.

The estimated average property value in AL5 3AS currently stands at £764,870, which is approximately 18.1% 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 £7,098.

Property prices in AL5 3AS have risen by 4.2% over the past year , with a total increase of 19.1% over the past five years, and a long-term rise of 39% over the past decade.

The most common type of property sold in the area is semi-detached, making up around 34% of transactions , followed by detached and terraced.

Housing in AL5 3AS is predominantly owner-occupied, with an estimated 80% of homes being lived in by the owners.

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Property Sales

11 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

Today
£240,863
streetscan.co.uk estimate
16 Feb 2000
£74,000
17 Jul 1997
£51,000

11A Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

Today
£240,863
streetscan.co.uk estimate
16 Feb 2000
£74,000

13 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

Today
£895,819
streetscan.co.uk estimate
5 Dec 2003
£340,000
9 Jan 1997
£155,000

15 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Terraced
🛏️ 5bed
📐 884 sq ft
Today
£706,198
streetscan.co.uk estimate
3 Jul 2018
£597,500
1 Jul 2016
£550,000
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19 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Semi-detached
🛏️ 5bed
📐 1087 sq ft
Today
£672,628
streetscan.co.uk estimate
26 Aug 2025
£685,000
29 Jul 2022
£695,000
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1B Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Flat
🛏️ 3bed
📐 560 sq ft
Today
£369,436
streetscan.co.uk estimate
26 Jan 2001
£125,000
22 Jan 1999
£69,500
More details

23 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 5bed
📐 1163 sq ft
Today
£747,079
streetscan.co.uk estimate
3 Dec 2014
£535,000
18 Apr 2006
£385,000
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25 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 5bed
📐 958 sq ft
Today
£852,837
streetscan.co.uk estimate
8 Apr 2022
£825,000
4 Jan 2019
£600,000
More details

27 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 4bed
📐 1012 sq ft
Today
£554,387
streetscan.co.uk estimate
24 Feb 2023
£550,000
29 Jan 2007
£330,000
More details

3 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Terraced
🛏️ 5bed
📐 1087 sq ft
Today
£792,424
streetscan.co.uk estimate
15 Jul 2022
£750,000
5 May 2017
£575,000
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31 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ bed
📐 2131 sq ft
Today
£640,607
streetscan.co.uk estimate
17 Sep 2020
£569,006
29 Nov 1996
£114,000
More details

33 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Semi-detached
🛏️ 5bed
📐 1076 sq ft
Today
£785,080
streetscan.co.uk estimate
18 Oct 2005
£342,000
More details

35 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

Today
£872,626
streetscan.co.uk estimate
14 Jan 2005
£370,000
11 Jan 2002
£200,000

39 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 6bed
📐 1227 sq ft
Today
£727,089
streetscan.co.uk estimate
27 Aug 2004
£315,000
More details

41 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

Today
£715,180
streetscan.co.uk estimate
18 Dec 1998
£157,750
17 Feb 1995
£88,500

43 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 4bed
📐 850 sq ft
Today
£773,039
streetscan.co.uk estimate
7 Aug 2015
£575,000
More details

45 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Semi-detached
🛏️ 6bed
📐 1701 sq ft
Today
£1,257,565
streetscan.co.uk estimate
21 Oct 2024
£1,260,000
30 Mar 2012
£692,000
View +1 more
More details

47 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Semi-detached
🛏️ 6bed
📐 1905 sq ft
Today
£1,273,879
streetscan.co.uk estimate
3 Nov 2020
£1,100,000
14 Apr 2000
£395,000
More details

49 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 9bed
📐 2422 sq ft
Today
£974,387
streetscan.co.uk estimate
2 Jul 2004
£412,500
More details

5 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Semi-detached
🛏️ 5bed
📐 1152 sq ft
Today
£761,281
streetscan.co.uk estimate
27 Oct 2017
£650,000
10 May 2013
£499,950
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51 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Semi-detached
🛏️ 4bed
📐 1044 sq ft
Today
£749,059
streetscan.co.uk estimate
31 Oct 1997
£139,950
More details

53 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

Today
£928,752
streetscan.co.uk estimate
26 Sep 2007
£490,000

55 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 6bed
📐 2002 sq ft
Today
£953,355
streetscan.co.uk estimate
12 Apr 2006
£430,000
More details

57 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Detached
🛏️ 7bed
📐 1625 sq ft
Today
£956,212
streetscan.co.uk estimate
14 Apr 2022
£925,000
15 Dec 2005
£460,000
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7 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Terraced
🛏️ 5bed
📐 1087 sq ft
Today
£754,455
streetscan.co.uk estimate
19 Apr 2006
£339,000
9 Feb 2001
£217,000
View +2 more
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9 Park Mount, Harpenden, St Albans, Hertfordshire, AL5 3AS

🏠 Terraced
🛏️ 5bed
📐 880 sq ft
Today
£738,011
streetscan.co.uk estimate
22 Sep 2017
£635,000
24 Aug 2011
£450,000
View +2 more
More details

Area Insights

Data Sources

Properties at AL5 3AS appear fifty-eight times in the Land Registry records, with the latest transaction recorded on 26 Aug 2025. It also has twenty Energy Performance Certificates (EPC) entries, the earliest dating back to 19 Jul 2021. 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.