Over the past 27 years, there have been 95 property sales recorded in the SG1 6AQ postcode area. The highest sale price reached £672,500, while the most recent sale was for a terraced house sold in September 2025 for £370,000.

The estimated average property value in SG1 6AQ currently stands at £530,753, which is approximately 39.8% 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 £5,395.

Property prices in SG1 6AQ have risen by 5.6% over the past year , with a total increase of 15.7% over the past five years , and a long-term rise of 50.7% over the past decade .

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

Housing in SG1 6AQ is predominantly owner-occupied, with an estimated 92% of homes being lived in by the owners.

Click on the map to change the analyzed area

Property Sales

1 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£229,287
streetscan.co.uk estimate
19 Dec 2000
£64,950

11 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 9bed
📐 1528 sq ft
Today
£629,215
streetscan.co.uk estimate
16 Nov 2009
£317,000
22 Dec 1998
£156,000
More details

15 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£723,825
streetscan.co.uk estimate
23 Nov 2001
£236,000
1 Mar 1999
£180,000

17 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 7bed
📐 1335 sq ft
Today
£747,855
streetscan.co.uk estimate
18 Mar 1999
£159,950
More details

19 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 7bed
📐 1130 sq ft
Today
£579,698
streetscan.co.uk estimate
25 Jan 2017
£475,000
27 Mar 2014
£334,995
View +2 more
More details

21 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1389 sq ft
Today
£568,119
streetscan.co.uk estimate
15 Dec 2006
£290,000
11 May 1999
£142,950
More details

23 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 7bed
📐 1130 sq ft
Today
£743,180
streetscan.co.uk estimate
15 Apr 1999
£158,950
More details

25 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1249 sq ft
Today
£655,048
streetscan.co.uk estimate
30 Jun 1999
£146,950
More details

27 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 8bed
📐 1733 sq ft
Today
£675,712
streetscan.co.uk estimate
1 Aug 2025
£672,500
23 Sep 1999
£161,950
More details

29 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£718,022
streetscan.co.uk estimate
27 Aug 1999
£169,950

3 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 4bed
📐 1152 sq ft
Today
£579,272
streetscan.co.uk estimate
12 Oct 2022
£560,000
30 Nov 2011
£312,000
View +2 more
More details

31 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1227 sq ft
Today
£550,614
streetscan.co.uk estimate
3 Apr 2012
£302,000
30 Jul 1999
£151,950
More details

33 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 8bed
📐 1368 sq ft
Today
£565,721
streetscan.co.uk estimate
15 Aug 2019
£470,000
2 Mar 2012
£316,000
View +2 more
More details

35 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£717,656
streetscan.co.uk estimate
30 Jun 1999
£160,995

37 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1421 sq ft
Today
£639,245
streetscan.co.uk estimate
10 Sep 1999
£154,950
More details

39 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1281 sq ft
Today
£599,585
streetscan.co.uk estimate
29 Oct 2021
£550,000
11 Jan 2008
£320,000
View +3 more
More details

41 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 5bed
📐 990 sq ft
Today
£538,711
streetscan.co.uk estimate
20 Jul 2017
£445,000
4 Nov 1999
£147,950
More details

43 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 5bed
📐 1163 sq ft
Today
£599,609
streetscan.co.uk estimate
2 Nov 2001
£195,500
1 Oct 1999
£154,950
More details

45 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£564,633
streetscan.co.uk estimate
31 Aug 2006
£285,000
2 Dec 2002
£241,000
29 Oct 2001
£202,500
25 Jun 1999
£163,950

47 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 4bed
📐 941 sq ft
Today
£399,034
streetscan.co.uk estimate
12 Jan 2011
£220,000
25 Aug 2000
£134,950
More details

49 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 4bed
📐 793 sq ft
Today
£478,743
streetscan.co.uk estimate
27 Mar 2009
£225,000
31 May 2001
£141,950
More details

5 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1044 sq ft
Today
£584,444
streetscan.co.uk estimate
28 Jun 2006
£285,000
28 Mar 2002
£194,950
View +1 more
More details

51 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£536,836
streetscan.co.uk estimate
8 Jun 2000
£132,950

53 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 4bed
📐 646 sq ft
Today
£344,612
streetscan.co.uk estimate
14 Jan 2021
£300,000
22 Jul 2016
£269,995
View +4 more
More details

55 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 4bed
📐 646 sq ft
Today
£324,122
streetscan.co.uk estimate
19 May 2006
£157,500
20 Dec 1999
£92,500
More details

57 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£481,619
streetscan.co.uk estimate
15 Feb 2000
£112,950

59 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£454,761
streetscan.co.uk estimate
13 May 2002
£139,500
21 Dec 1999
£112,950

61 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 4bed
📐 775 sq ft
Today
£471,148
streetscan.co.uk estimate
24 Nov 2000
£118,450
More details

63 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£474,046
streetscan.co.uk estimate
26 Jun 2000
£119,950

65 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 5bed
📐 743 sq ft
Today
£368,962
streetscan.co.uk estimate
1 Sep 2025
£370,000
26 May 2013
£199,995
View +2 more
More details

67 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 5bed
📐 753 sq ft
Today
£369,722
streetscan.co.uk estimate
24 May 2007
£197,000
27 Sep 2000
£118,450
More details

69 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£489,911
streetscan.co.uk estimate
4 May 2000
£119,950

7 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£644,127
streetscan.co.uk estimate
2 Jun 1999
£144,500

71 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Terraced
🛏️ 6bed
📐 893 sq ft
Today
£445,009
streetscan.co.uk estimate
13 Aug 2025
£440,000
20 Dec 2002
£157,000
View +1 more
More details

73 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Semi-detached
🛏️ 4bed
📐 635 sq ft
Today
£344,320
streetscan.co.uk estimate
16 Mar 2007
£176,500
31 Mar 2000
£95,950
More details

75 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 4bed
📐 764 sq ft
Today
£454,439
streetscan.co.uk estimate
30 Aug 2022
£435,000
20 Apr 2015
£305,000
View +3 more
More details

77 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£551,366
streetscan.co.uk estimate
9 May 2003
£209,995
18 Dec 2000
£135,950

79 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 4bed
📐 764 sq ft
Today
£433,547
streetscan.co.uk estimate
1 Aug 2014
£268,700
20 Dec 2007
£235,000
View +1 more
More details

81 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1076 sq ft
Today
£610,548
streetscan.co.uk estimate
1 Dec 2000
£172,950
More details

83 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£629,189
streetscan.co.uk estimate
1 Sep 2021
£556,000
23 Sep 2003
£255,000
28 Jul 2000
£79,950

85 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

🏠 Detached
🛏️ 6bed
📐 1165 sq ft
Today
£585,746
streetscan.co.uk estimate
22 Nov 2017
£500,000
7 Jun 2011
£295,000
View +2 more
More details

9 Thirlmere, Stevenage, North Hertfordshire, Hertfordshire, SG1 6AQ

Today
£624,068
streetscan.co.uk estimate
22 Jan 1999
£140,000

Area Insights

Data Sources

Properties at SG1 6AQ appear ninety-five times in the Land Registry records, with the latest transaction recorded on 1 Sep 2025. It also has twenty-eight Energy Performance Certificates (EPC) entries, the earliest dating back to 9 May 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.