Over the past 18 years, there have been 81 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 October 2025 for £197,000.

The estimated average property value in SG1 6NP currently stands at £217,809, which is approximately 43.4% 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 £3,334.

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
£212,576
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
£448,231
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

Today
£235,591
streetscan.co.uk estimate
30 Jun 2008
£158,950

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

🏠 Terraced
🛏️ 4bed
📐 700 sq ft
Today
£344,657
streetscan.co.uk estimate
9 Feb 2024
£307,000
23 Sep 2016
£270,000
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14 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 3bed
📐 635 sq ft
Today
£299,023
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
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
£329,694
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
£203,925
streetscan.co.uk estimate
19 Aug 2025
£200,000
26 Mar 2021
£180,500
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18 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 4bed
📐 635 sq ft
Today
£330,612
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
£86,315
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
£433,808
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
£317,647
streetscan.co.uk estimate
3 Nov 2023
£300,000
6 Jul 2015
£225,000
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22 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Terraced
🛏️ 3bed
📐 624 sq ft
Today
£337,664
streetscan.co.uk estimate
27 Mar 2017
£257,000
8 Oct 2007
£179,500
More details

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

🏠 Flat
🛏️ 3bed
📐 678 sq ft
Today
£80,094
streetscan.co.uk estimate
26 Aug 2016
£72,000
12 Jun 2008
£64,000
More details

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

🏠 Terraced
🛏️ 3bed
📐 603 sq ft
Today
£281,645
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
£63,691
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
£211,270
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
£239,848
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
£118,909
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
£93,720
streetscan.co.uk estimate
13 Jun 2011
£58,000
2 Jul 2008
£64,000
View +1 more
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35 Knott Close, Great Ashby, Stevenage, North Hertfordshire, Hertfordshire, SG1 6NP

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£95,613
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
£122,173
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
£394,512
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
£118,573
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
£117,825
streetscan.co.uk estimate
4 Dec 2020
£110,000
18 Jul 2008
£76,000
More details

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

🏠 Flat
🛏️ 3bed
📐 667 sq ft
Today
£99,965
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
£97,062
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
£92,219
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
£232,915
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
£337,137
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
£224,822
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
£421,024
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
£234,913
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-one times in the Land Registry records, with the latest transaction recorded on 17 Oct 2025. It also has thirty-two 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.