Over the past 30 years, there have been 46 property sales recorded in the AL9 5AY postcode area. The highest sale price reached £585,000, while the most recent sale was for a terraced maisonette sold in June 2025 for £300,000.

The estimated average property value in AL9 5AY currently stands at £398,201, which is roughly in line with the city average (within ±8%), suggesting property prices reflect broader market trends.

In terms of size, the average price per square metre is approximately £4,420.

Property prices in AL9 5AY have risen by 3.4% over the past year , with a total increase of 10.5% over the past five years, and a long-term rise of 43.5% over the past decade.

The most common type of property sold in the area is flat, making up around 59% of transactions , followed by terraced and semi-detached.

Housing in AL9 5AY is predominantly owner-occupied, with an estimated 82% of homes being lived in by the owners.

Click on the map to change the analyzed area

Property Sales

10 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

Today
£204,318
streetscan.co.uk estimate
17 Oct 2003
£114,995

11 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 1bed
📐 431 sq ft
Today
£172,544
streetscan.co.uk estimate
27 Sep 2013
£117,000
22 May 2006
£114,950
View +1 more
More details

12 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 1bed
📐 431 sq ft
Today
£205,518
streetscan.co.uk estimate
15 Feb 2022
£210,000
1 Dec 2014
£127,000
More details

14 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

Today
£321,620
streetscan.co.uk estimate
29 Jan 1999
£86,500

15 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 872 sq ft
Today
£311,217
streetscan.co.uk estimate
5 Jun 2014
£230,100
More details

16 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 861 sq ft
Today
£303,646
streetscan.co.uk estimate
24 Nov 2023
£302,700
More details

17 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 840 sq ft
Today
£333,053
streetscan.co.uk estimate
7 Jun 2022
£350,000
13 Jun 2008
£219,995
More details

18 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 883 sq ft
Today
£326,130
streetscan.co.uk estimate
4 Oct 2013
£222,500
16 Sep 2005
£186,500
More details

19 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 2bed
📐 452 sq ft
Today
£190,023
streetscan.co.uk estimate
24 Mar 2005
£118,000
10 Jul 2000
£69,950
More details

2 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Semi-detached
🛏️ 5bed
📐 1206 sq ft
Today
£533,149
streetscan.co.uk estimate
6 Aug 2021
£482,500
More details

20 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 1bed
📐 441 sq ft
Today
£169,100
streetscan.co.uk estimate
25 Nov 2013
£115,016
More details

21 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 1bed
📐 441 sq ft
Today
£169,100
streetscan.co.uk estimate
25 Nov 2013
£115,016
More details

22 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 861 sq ft
Today
£334,313
streetscan.co.uk estimate
23 Aug 2013
£226,000
31 Jan 2003
£178,000
View +1 more
More details

23 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 861 sq ft
Today
£358,140
streetscan.co.uk estimate
29 Feb 2016
£315,000
1 Oct 2014
£250,000
View +1 more
More details

24 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 3bed
📐 883 sq ft
Today
£318,874
streetscan.co.uk estimate
20 Jun 2025
£300,000
10 Jan 2014
£218,000
More details

25 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Terraced
🛏️ 4bed
📐 1755 sq ft
Today
£527,267
streetscan.co.uk estimate
5 Feb 2025
£522,000
16 Apr 2021
£525,000
More details

27 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

Today
£624,456
streetscan.co.uk estimate
29 Jan 1999
£133,500

28 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Terraced
🛏️ 5bed
📐 1518 sq ft
Today
£609,350
streetscan.co.uk estimate
28 Nov 2023
£585,000
1 Jul 2009
£220,000
More details

3 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Semi-detached
🛏️ 4bed
📐 1044 sq ft
Today
£507,772
streetscan.co.uk estimate
20 Nov 2023
£490,000
More details

30 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Terraced
🛏️ 4bed
📐 1089 sq ft
Today
£539,572
streetscan.co.uk estimate
1 Apr 2010
£290,000
More details

34 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Terraced
🛏️ 7bed
📐 1598 sq ft
Today
£641,905
streetscan.co.uk estimate
6 Apr 2010
£345,000
3 May 1996
£97,980
More details

35 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Terraced
🛏️ 6bed
📐 1593 sq ft
Today
£658,278
streetscan.co.uk estimate
22 Jul 2005
£315,000
24 Feb 2005
£290,000
View +1 more
More details

36 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Terraced
🛏️ 5bed
📐 1528 sq ft
Today
£724,781
streetscan.co.uk estimate
12 Mar 1999
£153,500
16 Feb 1996
£94,000
More details

4 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Semi-detached
🛏️ 5bed
📐 1249 sq ft
Today
£579,557
streetscan.co.uk estimate
18 Dec 2023
£550,000
28 May 2013
£266,000
More details

6 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Semi-detached
🛏️ 5bed
📐 1195 sq ft
Today
£561,798
streetscan.co.uk estimate
24 Jul 2024
£550,000
29 Nov 2021
£470,000
More details

8 Park Close, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 5AY

🏠 Flat
🛏️ 1bed
📐 441 sq ft
Today
£187,097
streetscan.co.uk estimate
12 Oct 2000
£68,000
15 Mar 1999
£50,530
More details

Area Insights

Data Sources

Properties at AL9 5AY appear fourty-six times in the Land Registry records, with the latest transaction recorded on 20 Jun 2025. It also has twenty-three Energy Performance Certificates (EPC) entries, the earliest dating back to 5 Oct 2018. 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.