Over the past 18 years, there have been 84 property sales recorded in the SG1 6NP postcode area. The highest sale price reached £384,000, while the most recent sale was for a detached flat sold in January 2026 for £235,000.

The estimated average property value in SG1 6NP currently stands at £217,809, which is approximately 42.6% 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 £3,361.

Property prices in SG1 6NP have risen by 4.9% over the past year , with a total increase of 11.8% over the past five years , and a long-term rise of 47% over the past decade .

The most common type of property sold in the area is flat, making up around 62% of transactions , followed by terraced and semi-detached.

Housing in SG1 6NP is predominantly owner-occupied, with an estimated 90% of homes being lived in by the owners.

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Property Sales

1 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£203,983
streetscan.co.uk estimate
29 May 2015
£159,995
24 Jul 2008
£144,950
More details

10 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 5bed
📐 958 sq ft
Today
£442,421
streetscan.co.uk estimate
9 Apr 2020
£359,000
22 Aug 2016
£315,000
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11 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 581 sq ft
Today
£226,067
streetscan.co.uk estimate
30 Jun 2008
£158,950
More details

12 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 4bed
📐 700 sq ft
Today
£340,189
streetscan.co.uk estimate
9 Feb 2024
£307,000
23 Sep 2016
£270,000
View +1 more
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14 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 3bed
📐 635 sq ft
Today
£295,147
streetscan.co.uk estimate
29 Oct 2020
£255,000
6 Oct 2015
£223,500
More details

15 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 2bed
📐 484 sq ft
Today
£191,619
streetscan.co.uk estimate
17 Oct 2025
£197,000
3 Oct 2008
£125,000
More details

16 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 2bed
📐 629 sq ft
Today
£325,420
streetscan.co.uk estimate
5 Oct 2007
£179,500
More details

17 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 2bed
📐 495 sq ft
Today
£198,211
streetscan.co.uk estimate
19 Aug 2025
£200,000
26 Mar 2021
£180,500
View +4 more
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18 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 4bed
📐 635 sq ft
Today
£326,327
streetscan.co.uk estimate
12 Oct 2007
£180,000
More details

19 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 700 sq ft
Today
£82,826
streetscan.co.uk estimate
27 Jun 2014
£59,980
14 May 2008
£64,000
More details

2 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 6bed
📐 936 sq ft
Today
£428,184
streetscan.co.uk estimate
19 Nov 2021
£384,000
22 Nov 2016
£325,000
View +2 more
More details

20 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 4bed
📐 635 sq ft
Today
£313,529
streetscan.co.uk estimate
3 Nov 2023
£300,000
6 Jul 2015
£225,000
View +1 more
More details

22 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 3bed
📐 624 sq ft
Today
£315,296
streetscan.co.uk estimate
9 Jan 2026
£315,000
27 Mar 2017
£257,000
View +1 more
More details

23 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 678 sq ft
Today
£229,701
streetscan.co.uk estimate
17 Dec 2025
£235,000
26 Aug 2016
£72,000
View +1 more
More details

24 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 3bed
📐 603 sq ft
Today
£277,994
streetscan.co.uk estimate
18 Aug 2023
£260,000
24 Jul 2018
£285,000
View +3 more
More details

25 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£61,117
streetscan.co.uk estimate
26 Jul 2019
£57,500
More details

29 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 657 sq ft
Today
£202,730
streetscan.co.uk estimate
16 Nov 2023
£207,000
19 Apr 2013
£43,500
More details

3 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 786 sq ft
Today
£230,152
streetscan.co.uk estimate
28 Oct 2022
£235,000
18 Jul 2008
£159,950
More details

31 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£114,102
streetscan.co.uk estimate
6 Apr 2021
£112,500
More details

33 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 654 sq ft
Today
£89,932
streetscan.co.uk estimate
13 Jun 2011
£58,000
2 Jul 2008
£64,000
View +1 more
More details

35 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£91,748
streetscan.co.uk estimate
26 Sep 2017
£90,000
7 May 2008
£64,000
More details

39 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 678 sq ft
Today
£117,234
streetscan.co.uk estimate
18 Sep 2017
£115,000
15 May 2008
£80,000
More details

4 Knott Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 5bed
📐 926 sq ft
Today
£389,398
streetscan.co.uk estimate
9 May 2014
£239,995
30 Nov 2007
£229,950
More details

41 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 684 sq ft
Today
£113,780
streetscan.co.uk estimate
23 Jun 2008
£80,000
More details

43 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 678 sq ft
Today
£233,129
streetscan.co.uk estimate
30 Jan 2026
£235,000
4 Dec 2020
£110,000
View +1 more
More details

45 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£95,924
streetscan.co.uk estimate
4 Jan 2024
£94,000
8 Dec 2021
£77,000
View +2 more
More details

47 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 646 sq ft
Today
£93,138
streetscan.co.uk estimate
21 Aug 2020
£88,000
8 Aug 2014
£62,000
View +1 more
More details

49 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 689 sq ft
Today
£88,491
streetscan.co.uk estimate
26 Sep 2022
£90,000
20 Feb 2017
£80,000
View +1 more
More details

5 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 624 sq ft
Today
£223,500
streetscan.co.uk estimate
8 Dec 2017
£223,500
16 Dec 2013
£142,000
View +2 more
More details

6 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 3bed
📐 1055 sq ft
Today
£332,766
streetscan.co.uk estimate
30 Jul 2021
£290,000
7 Nov 2017
£270,000
More details

7 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 635 sq ft
Today
£215,734
streetscan.co.uk estimate
22 Nov 2012
£140,000
31 Jul 2008
£158,950
More details

8 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Semi-detached
🛏️ 5bed
📐 904 sq ft
Today
£412,550
streetscan.co.uk estimate
11 Aug 2014
£249,995
9 Jan 2008
£223,950
More details

9 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 646 sq ft
Today
£225,417
streetscan.co.uk estimate
10 Feb 2022
£227,000
2 May 2014
£155,000
View +1 more
More details

Area Insights

Data Sources

Properties at SG1 6NP appear eighty-four times in the Land Registry records, with the latest transaction recorded on 30 Jan 2026. It also has thirty-three Energy Performance Certificates (EPC) entries, the earliest dating back to 5 Nov 2019. 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.