Over the past 26 years, there have been 60 property sales recorded in the SG1 6AY postcode area. The highest sale price reached £500,000, while the most recent sale was for a terraced house sold in February 2026 for £500,000.

The estimated average property value in SG1 6AY currently stands at £462,337, which is approximately 21.8% 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 £4,861.

Property prices in SG1 6AY have risen by 6.2% over the past year , with a total increase of 16.7% over the past five years , and a long-term rise of 51.4% over the past decade .

The most common type of property sold in the area is terraced, making up around 48% of transactions , followed by semi-detached and detached.

Housing in SG1 6AY is predominantly owner-occupied, with an estimated 100% of homes being lived in by the owners.

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Property Sales

1 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£501,560
streetscan.co.uk estimate
22 Feb 2001
£133,000

11 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Terraced
🛏️ 3bed
📐 667 sq ft
Today
£392,288
streetscan.co.uk estimate
27 Mar 2000
£92,000
More details

15 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Terraced
🛏️ 4bed
📐 646 sq ft
Today
£314,746
streetscan.co.uk estimate
22 Jan 2021
£274,000
16 Jan 2015
£210,000
View +3 more
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17 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Terraced
🛏️ 5bed
📐 1032 sq ft
Today
£448,842
streetscan.co.uk estimate
4 Jul 2019
£368,000
5 Apr 2000
£104,000
More details

19 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£594,625
streetscan.co.uk estimate
19 Oct 2001
£176,000
14 Apr 2000
£148,000

21 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Semi-detached
🛏️ 6bed
📐 1060 sq ft
Today
£505,847
streetscan.co.uk estimate
1 Jul 2021
£435,000
20 Oct 2009
£240,000
View +2 more
More details

23 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£520,254
streetscan.co.uk estimate
29 Apr 2008
£273,000
4 Aug 2000
£157,000

25 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£611,444
streetscan.co.uk estimate
4 Aug 2000
£157,000

27 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Semi-detached
🛏️ 5bed
📐 861 sq ft
Today
£422,858
streetscan.co.uk estimate
19 Mar 2018
£351,000
27 Jul 2007
£223,000
View +3 more
More details

29 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£430,046
streetscan.co.uk estimate
28 Sep 2005
£200,500
18 Aug 2000
£128,000

3 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£491,726
streetscan.co.uk estimate
2 Aug 2002
£168,500
19 Jun 2000
£125,000

31 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£442,031
streetscan.co.uk estimate
18 Aug 2000
£113,500

33 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Semi-detached
🛏️ 4bed
📐 835 sq ft
Today
£374,742
streetscan.co.uk estimate
15 Feb 2010
£189,995
18 Aug 2000
£113,000
More details

35 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£598,839
streetscan.co.uk estimate
1 Sep 2000
£156,000

37 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£626,474
streetscan.co.uk estimate
30 Nov 2000
£157,500

39 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Detached
🛏️ 6bed
📐 1335 sq ft
Today
£516,812
streetscan.co.uk estimate
2 Jun 2021
£450,000
15 Sep 2000
£137,000
More details

41 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Semi-detached
🛏️ 6bed
📐 1238 sq ft
Today
£502,345
streetscan.co.uk estimate
16 Feb 2026
£500,000
9 Jan 2012
£246,000
View +1 more
More details

43 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£490,875
streetscan.co.uk estimate
4 Jul 2006
£242,000
13 May 2004
£230,000
11 Apr 2001
£148,000

45 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Terraced
🛏️ 5bed
📐 1012 sq ft
Today
£461,893
streetscan.co.uk estimate
10 Jul 2020
£380,000
16 Jun 2017
£383,000
View +4 more
More details

47 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£498,125
streetscan.co.uk estimate
16 Jun 2017
£399,995
22 Feb 2008
£279,000
22 Jun 2006
£247,500
21 Apr 2004
£243,000
30 May 2003
£215,000
1 Dec 2000
£150,000

5 Blackdown Close, Stevenage, Hertfordshire, SG1 6AY

Today
£385,388
streetscan.co.uk estimate
27 Jul 2006
£189,995
3 Mar 2000
£105,000

7 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

Today
£450,026
streetscan.co.uk estimate
16 Jan 2003
£160,000
10 Mar 2000
£105,000

9 Blackdown Close, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AY

🏠 Terraced
🛏️ 4bed
📐 732 sq ft
Today
£358,032
streetscan.co.uk estimate
23 Jun 2017
£287,500
24 Oct 2005
£182,500
View +2 more
More details

Area Insights

Data Sources

Properties at SG1 6AY appear sixty times in the Land Registry records, with the latest transaction recorded on 16 Feb 2026. It also has ten Energy Performance Certificates (EPC) entries, the earliest dating back to 22 Jun 2009. 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.