Over the past 28 years, there have been 34 property sales recorded in the SG3 6JH postcode area. The highest sale price reached £415,000, while the most recent sale was for a terraced house sold in September 2025 for £400,000.

The estimated average property value in SG3 6JH currently stands at £369,330, which is approximately 33.7% 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 £4,512.

Property prices in SG3 6JH have risen by 4.9% over the past year , with a total increase of 18.4% over the past five years, and a long-term rise of 53.3% over the past decade.

100% of recorded transactions in the area were for terraced properties.

Housing in SG3 6JH is predominantly owner-occupied, with an estimated 73% of homes being lived in by the owners.

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Property Sales

12 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

Today
£395,267
streetscan.co.uk estimate
27 Nov 1997
£77,000

13 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 861 sq ft
Today
£362,936
streetscan.co.uk estimate
12 Jul 2018
£310,000
24 Feb 2012
£158,000
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14 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 883 sq ft
Today
£402,080
streetscan.co.uk estimate
22 Jun 2016
£335,000
30 Jul 2007
£151,000
More details

17 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 4bed
📐 845 sq ft
Today
£343,778
streetscan.co.uk estimate
16 Oct 2020
£306,000
27 Sep 2012
£185,000
More details

19 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 850 sq ft
Today
£371,465
streetscan.co.uk estimate
22 Apr 2016
£285,000
12 Jul 2002
£140,000
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2 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 980 sq ft
Today
£316,361
streetscan.co.uk estimate
17 Apr 2014
£195,000
14 Feb 2003
£150,000
More details

20 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 4bed
📐 829 sq ft
Today
£400,000
streetscan.co.uk estimate
19 Sep 2025
£400,000
11 Apr 2022
£355,000
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22 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 4bed
📐 893 sq ft
Today
£390,133
streetscan.co.uk estimate
31 Oct 2024
£380,000
26 Mar 2018
£290,000
More details

24 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 850 sq ft
Today
£392,757
streetscan.co.uk estimate
20 Dec 2023
£370,000
7 Dec 2018
£320,000
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More details

28 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 4bed
📐 850 sq ft
Today
£416,665
streetscan.co.uk estimate
1 Nov 2022
£415,000
25 Sep 2020
£310,000
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More details

30 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 926 sq ft
Today
£369,458
streetscan.co.uk estimate
19 Feb 2020
£320,000
More details

31 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 947 sq ft
Today
£396,229
streetscan.co.uk estimate
4 Feb 2022
£380,000
More details

32 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

Today
£375,952
streetscan.co.uk estimate
8 Dec 2003
£163,000
31 Jan 2001
£108,000

34 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 926 sq ft
Today
£397,739
streetscan.co.uk estimate
11 Feb 2015
£269,000
More details

5 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 840 sq ft
Today
£318,043
streetscan.co.uk estimate
13 Dec 2013
£190,000
More details

7 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 861 sq ft
Today
£390,707
streetscan.co.uk estimate
1 Aug 2025
£395,000
22 Feb 2019
£310,000
More details

9 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH

🏠 Terraced
🛏️ 5bed
📐 840 sq ft
Today
£357,500
streetscan.co.uk estimate
8 Apr 1999
£77,500
More details

Area Insights

Data Sources

Properties at SG3 6JH appear thirty-four times in the Land Registry records, with the latest transaction recorded on 19 Sep 2025. It also has fifteen Energy Performance Certificates (EPC) entries, the earliest dating back to 27 May 2010. 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.