Over the past 29 years, there have been 25 property sales recorded in the AL7 4DY postcode area. The highest sale price reached £493,000, while the most recent sale was for a terraced house sold in February 2026 for £390,000.

The estimated average property value in AL7 4DY currently stands at £384,664, which is approximately 16.9% 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 £5,375.

Property prices in AL7 4DY have risen by 4.3% over the past year , with a total increase of 14.9% over the past five years , and a long-term rise of 50.6% over the past decade .

The most common type of property sold in the area is terraced, making up around 56% of transactions , followed by semi-detached.

Housing in AL7 4DY is predominantly owner-occupied, with an estimated 87% of homes being lived in by the owners.

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Property Sales

10 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Semi-detached
🛏️ 5bed
📐 909 sq ft
Today
£428,750
streetscan.co.uk estimate
15 Jun 2012
£235,000
More details

14 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

Today
£430,994
streetscan.co.uk estimate
18 Jul 2014
£270,000
2 Feb 2007
£210,000

16 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

Today
£387,573
streetscan.co.uk estimate
28 Jul 2006
£187,000
27 Feb 2002
£120,000

18 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Terraced
🛏️ 4bed
📐 786 sq ft
Today
£415,619
streetscan.co.uk estimate
12 Dec 2025
£395,000
8 Sep 2017
£310,000
More details

20 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Terraced
🛏️ 4bed
📐 781 sq ft
Today
£393,568
streetscan.co.uk estimate
11 Aug 2014
£250,000
8 Apr 2011
£179,000
View +2 more
More details

28 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Semi-detached
🛏️ 4bed
📐 891 sq ft
Today
£552,611
streetscan.co.uk estimate
30 Jun 2021
£493,000
25 Sep 2017
£427,500
View +1 more
More details

34 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Semi-detached
🛏️ 5bed
📐 859 sq ft
Today
£432,669
streetscan.co.uk estimate
5 Dec 2011
£230,000
7 Apr 2006
£210,000
More details

38 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Terraced
🛏️ 5bed
📐 753 sq ft
Today
£433,247
streetscan.co.uk estimate
28 Feb 2003
£169,000
More details

42 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

Today
£194,296
streetscan.co.uk estimate
2 Feb 2001
£55,000
31 Jan 1997
£64,950

44 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Terraced
🛏️ 5bed
📐 786 sq ft
Today
£396,558
streetscan.co.uk estimate
18 Feb 2026
£390,000
30 Oct 2009
£181,500
View +2 more
More details

50 Boundary Lane, Welwyn Garden City, Welwyn Hatfield, Hertfordshire, AL7 4DY

🏠 Semi-detached
🛏️ 5bed
📐 743 sq ft
Today
£387,430
streetscan.co.uk estimate
9 Aug 2013
£218,000
21 Mar 2012
£182,500
More details

Area Insights

Data Sources

Properties at AL7 4DY appear twenty-five times in the Land Registry records, with the latest transaction recorded on 18 Feb 2026. It also has eight Energy Performance Certificates (EPC) entries, the earliest dating back to 3 Aug 2011. 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.