Over the past 31 years, there have been 63 property sales recorded in the AL5 4SY postcode area. The highest sale price reached £665,000, while the most recent sale was for a terraced flat sold in May 2025 for £415,000.

The estimated average property value in AL5 4SY currently stands at £449,185, which is approximately 51.8% 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 £5,438.

Property prices in AL5 4SY have risen by 2.3% over the past year , with a total increase of 8.3% over the past five years , and a long-term rise of 22.1% over the past decade .

The most common type of property sold in the area is flat, making up around 98% of transactions , followed by terraced.

Housing in AL5 4SY is predominantly owner-occupied, with an estimated 54% of homes being lived in by the owners.

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Property Sales

1, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 603 sq ft
Today
£350,866
streetscan.co.uk estimate
20 Jun 2003
£179,950
19 Jan 2001
£128,000
More details

10, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 5bed
📐 1130 sq ft
Today
£570,879
streetscan.co.uk estimate
25 Jun 2021
£565,000
12 Mar 1999
£133,000
More details

11, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 5bed
📐 1173 sq ft
Today
£493,547
streetscan.co.uk estimate
30 Jan 1995
£92,000
More details

12, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 4bed
📐 1305 sq ft
Today
£559,240
streetscan.co.uk estimate
23 Mar 2016
£519,500
9 Feb 2007
£337,500
View +2 more
More details

14, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 4bed
📐 893 sq ft
Today
£407,065
streetscan.co.uk estimate
7 Jan 2022
£410,000
17 Jul 2008
£285,000
View +1 more
More details

15, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 570 sq ft
Today
£286,169
streetscan.co.uk estimate
17 Mar 2017
£290,000
15 Jul 2014
£220,000
More details

16, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 4bed
📐 893 sq ft
Today
£423,995
streetscan.co.uk estimate
27 Sep 2001
£162,000
More details

17, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 2bed
📐 560 sq ft
Today
£302,440
streetscan.co.uk estimate
5 Apr 2001
£109,950
10 Jul 1998
£69,950
More details

18, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1313 sq ft
Today
£581,121
streetscan.co.uk estimate
30 Jun 2020
£550,000
More details

19, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

Today
£526,158
streetscan.co.uk estimate
29 Nov 2006
£330,000
6 Nov 2002
£300,000
7 Dec 1999
£162,500

2, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 592 sq ft
Today
£358,870
streetscan.co.uk estimate
26 Feb 2021
£350,000
16 Jun 2015
£302,000
View +1 more
More details

20, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1259 sq ft
Today
£611,241
streetscan.co.uk estimate
16 Sep 1999
£175,000
9 Jul 1997
£138,000
More details

21, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1324 sq ft
Today
£533,575
streetscan.co.uk estimate
10 Jun 2020
£505,000
More details

23, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 2bed
📐 495 sq ft
Today
£271,382
streetscan.co.uk estimate
19 Jun 2017
£272,500
More details

24, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 2bed
📐 484 sq ft
Today
£240,347
streetscan.co.uk estimate
17 Sep 2024
£250,000
More details

26, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Terraced
🛏️ 6bed
📐 1308 sq ft
Today
£696,446
streetscan.co.uk estimate
17 Apr 2014
£440,000
21 Aug 2003
£280,000
More details

27, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1302 sq ft
Today
£622,436
streetscan.co.uk estimate
30 Sep 2022
£650,000
16 Jun 2006
£315,000
More details

28, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1302 sq ft
Today
£646,361
streetscan.co.uk estimate
20 Dec 2022
£665,000
More details

29, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 646 sq ft
Today
£343,630
streetscan.co.uk estimate
1 Jun 2022
£350,000
20 Feb 2015
£320,000
More details

3, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 624 sq ft
Today
£321,594
streetscan.co.uk estimate
20 Sep 2021
£323,250
30 Jun 1995
£55,000
More details

30, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 635 sq ft
Today
£328,534
streetscan.co.uk estimate
13 Jun 2008
£225,000
6 Nov 2006
£230,000
More details

31, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 4bed
📐 764 sq ft
Today
£416,717
streetscan.co.uk estimate
30 May 2025
£415,000
14 Jul 1995
£67,500
More details

32, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 4bed
📐 743 sq ft
Today
£384,798
streetscan.co.uk estimate
23 May 2022
£389,950
30 Sep 2002
£185,000
More details

33, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 893 sq ft
Today
£400,255
streetscan.co.uk estimate
26 Mar 2021
£389,950
21 Oct 2005
£217,000
More details

34, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 904 sq ft
Today
£333,237
streetscan.co.uk estimate
19 Feb 2021
£325,000
More details

35, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1292 sq ft
Today
£555,472
streetscan.co.uk estimate
31 Mar 2016
£516,000
More details

36, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 6bed
📐 1292 sq ft
Today
£573,773
streetscan.co.uk estimate
27 Jul 1998
£143,000
More details

4, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 657 sq ft
Today
£351,916
streetscan.co.uk estimate
4 Oct 2007
£245,000
More details

5, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 4bed
📐 840 sq ft
Today
£512,805
streetscan.co.uk estimate
30 May 2014
£385,000
16 Feb 2007
£264,000
View +2 more
More details

6, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 657 sq ft
Today
£346,699
streetscan.co.uk estimate
1 Oct 2004
£199,950
7 Jan 2004
£185,000
View +1 more
More details

7, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 947 sq ft
Today
£372,412
streetscan.co.uk estimate
7 Aug 2003
£191,000
1 Mar 2000
£140,000
More details

8, Carlton Court Carlton Road, Harpenden, St Albans, Hertfordshire, AL5 4SY

🏠 Flat
🛏️ 3bed
📐 657 sq ft
Today
£393,166
streetscan.co.uk estimate
17 Jun 2015
£330,000
20 Jun 2006
£200,000
View +2 more
More details

Area Insights

Data Sources

Properties at AL5 4SY appear sixty-three times in the Land Registry records, with the latest transaction recorded on 30 May 2025. It also has thirty-one Energy Performance Certificates (EPC) entries, the earliest dating back to 21 Feb 2020. 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.