Over the past 30 years, there have been 56 property sales recorded in the AL9 7ST postcode area. The highest sale price reached £775,000, while the most recent sale was for a detached flat sold in September 2025 for £442,500.

The estimated average property value in AL9 7ST currently stands at £625,390, which is approximately 47.1% 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 £4,744.

Property prices in AL9 7ST have risen by 4% over the past year , with a total increase of 10.9% over the past five years , and a long-term rise of 60.6% over the past decade .

The most common type of property sold in the area is flat, making up around 46% of transactions , followed by terraced and detached.

Housing in AL9 7ST is predominantly owner-occupied, with an estimated 96% of homes being lived in by the owners.

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Property Sales

1 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1528 sq ft
Today
£951,852
streetscan.co.uk estimate
31 Mar 2017
£775,000
20 Jun 2014
£285,000
More details

10 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1615 sq ft
Today
£660,857
streetscan.co.uk estimate
20 Aug 2021
£585,000
20 Dec 2019
£725,000
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More details

11 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1485 sq ft
Today
£810,609
streetscan.co.uk estimate
31 Mar 2017
£660,000
20 Jun 2014
£285,000
View +2 more
More details

12 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 1485 sq ft
Today
£386,671
streetscan.co.uk estimate
20 Jun 2014
£285,000
9 Jul 1999
£86,500
View +1 more
More details

14 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1485 sq ft
Today
£763,485
streetscan.co.uk estimate
23 Apr 2018
£635,000
More details

15 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1485 sq ft
Today
£711,438
streetscan.co.uk estimate
9 Jun 2021
£645,000
13 Apr 2018
£618,000
More details

16 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1507 sq ft
Today
£911,348
streetscan.co.uk estimate
11 Jan 2017
£750,000
More details

17 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 969 sq ft
Today
£428,328
streetscan.co.uk estimate
20 May 2016
£399,950
More details

18 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 1012 sq ft
Today
£450,427
streetscan.co.uk estimate
22 Sep 2025
£442,500
8 Jun 2023
£410,000
View +1 more
More details

19 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 786 sq ft
Today
£315,931
streetscan.co.uk estimate
13 May 2016
£295,000
More details

2 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1453 sq ft
Today
£843,518
streetscan.co.uk estimate
3 Feb 2017
£695,000
20 Jun 2014
£285,000
More details

20 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 915 sq ft
Today
£385,490
streetscan.co.uk estimate
19 May 2016
£359,950
More details

21 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ 4bed
📐 1755 sq ft
Today
£645,020
streetscan.co.uk estimate
5 Aug 2022
£640,000
21 Apr 2016
£629,950
More details

22 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ 5bed
📐 1808 sq ft
Today
£843,214
streetscan.co.uk estimate
25 Apr 2016
£629,950
More details

23 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1873 sq ft
Today
£665,176
streetscan.co.uk estimate
15 Aug 2022
£660,000
28 Sep 2018
£650,000
More details

24 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1410 sq ft
Today
£741,552
streetscan.co.uk estimate
22 Apr 2016
£554,000
More details

25 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ 4bed
📐 1335 sq ft
Today
£600,269
streetscan.co.uk estimate
11 Apr 2022
£581,000
25 Apr 2016
£549,950
More details

26 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1399 sq ft
Today
£637,563
streetscan.co.uk estimate
28 Sep 2021
£565,000
5 May 2016
£549,950
More details

27 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ 5bed
📐 1356 sq ft
Today
£651,628
streetscan.co.uk estimate
5 May 2021
£580,000
25 Apr 2016
£557,950
More details

28 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Detached
🛏️ bed
📐 1313 sq ft
Today
£737,215
streetscan.co.uk estimate
14 May 2019
£640,000
16 Dec 2016
£635,000
More details

3 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1453 sq ft
Today
£744,022
streetscan.co.uk estimate
25 Feb 2021
£655,000
12 May 2017
£705,000
View +2 more
More details

4 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 1485 sq ft
Today
£386,671
streetscan.co.uk estimate
20 Jun 2014
£285,000
4 May 2004
£157,000
More details

5 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1485 sq ft
Today
£782,561
streetscan.co.uk estimate
15 Mar 2018
£660,000
20 Jun 2014
£285,000
More details

6 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 1485 sq ft
Today
£386,671
streetscan.co.uk estimate
20 Jun 2014
£285,000
More details

7 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Terraced
🛏️ bed
📐 1485 sq ft
Today
£774,561
streetscan.co.uk estimate
9 Feb 2018
£652,500
20 Jun 2014
£285,000
View +1 more
More details

8 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Flat
🛏️ bed
📐 1507 sq ft
Today
£386,671
streetscan.co.uk estimate
20 Jun 2014
£285,000
11 Mar 1997
£58,000
More details

9 Green Close, Brookmans Park, Hatfield, Welwyn Hatfield, Hertfordshire, AL9 7ST

🏠 Detached
🛏️ bed
📐 1496 sq ft
Today
£823,460
streetscan.co.uk estimate
6 Feb 2017
£705,000
7 Jul 2014
£285,000
View +1 more
More details

Area Insights

Data Sources

Properties at AL9 7ST appear fifty-six times in the Land Registry records, with the latest transaction recorded on 22 Sep 2025. It also has twenty-seven Energy Performance Certificates (EPC) entries, the earliest dating back to 8 Jun 2016. 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.