SG1 6AH

Thirlmere, Stevenage

Median, last 3 years

£368,500

2 sales, Jun 2023 – May 2026

Last standard sale

£362,000

26 Jul 2024

Standard sales

since 1999 (+2 additional entries)

SG1 district median

£350,000

526 sales, 12 months to May 2026

By property type, Jun 2023 – May 2026: Detached sold for £375,000 · Terraced sold for £362,000

Medians count standard sales only (Price Paid category A). Additional entries (category B) - repossessions, buy-to-lets with an identifiable mortgage, and purchases by companies and other non-private buyers - are listed below but left out.

Median price by year

2010 to 2024. Every year since 1999 is in the figures below.

Paler bars rest on fewer than three sales, so they show which homes sold more than how prices moved.

Show the figures

Median sale price and number of sales by year
Year	Median	Sales
2024 (few sales)	£368,500	2
2022 (few sales)	£762,500	1
2018 (few sales)	£461,750	2
2017 (few sales)	£398,000	1
2014	£310,000	3
2013 (few sales)	£250,000	1
2012 (few sales)	£240,000	1
2011 (few sales)	£202,500	2
2010	£320,000	3
2007	£247,500	3
2006	£247,498	4
2005 (few sales)	£250,000	1
2004 (few sales)	£194,000	2
2003	£224,000	8
2002 (few sales)	£159,000	2
2001	£139,950	5
2000	£138,450	10
1999	£126,950	14

Sale history (67 records · 20 homes sold more than once)

Address	Date	Type	Price
20, THIRLMERE 26 Jul 2024 · Terraced · Freehold Previously £173,000 (Mar 2004) · +109%	26 Jul 2024	Terraced · Freehold	£362,000
36, THIRLMERE 28 Mar 2024 · Detached · Freehold Previously £230,000 (Apr 2011) · +63%	28 Mar 2024	Detached · Freehold	£375,000
24, THIRLMERE Cat B 31 Jul 2023 · Terraced · Freehold Previously £205,000 (Jun 2014)	31 Jul 2023	Terraced · Freehold	£342,500
60, THIRLMERE 24 Nov 2022 · Detached · Freehold Previously £225,950 (Sep 2000) · +237%	24 Nov 2022	Detached · Freehold	£762,500
48, THIRLMERE 10 Dec 2018 · Detached · Freehold Previously £462,500 (Sep 2018)	10 Dec 2018	Detached · Freehold	£421,500
48, THIRLMERE Cat B 13 Sep 2018 · Detached · Freehold Previously £148,950 (Dec 1999)	13 Sep 2018	Detached · Freehold	£462,500
2, THIRLMERE 24 Aug 2018 · Detached · Freehold Previously £337,000 (Apr 2014) · +49%	24 Aug 2018	Detached · Freehold	£502,000
42, THIRLMERE 15 Dec 2017 · Detached · Freehold Previously £242,000 (Dec 2006) · +64%	15 Dec 2017	Detached · Freehold	£398,000
24, THIRLMERE 6 Jun 2014 · Terraced · Freehold Previously £180,000 (Jul 2010) · +14%	6 Jun 2014	Terraced · Freehold	£205,000
2, THIRLMERE 17 Apr 2014 · Detached · Freehold Previously £250,000 (Apr 2003) · +35%	17 Apr 2014	Detached · Freehold	£337,000
4, THIRLMERE 14 Mar 2014 · Detached · Freehold Previously £302,500 (Dec 2006) · +2%	14 Mar 2014	Detached · Freehold	£310,000
34, THIRLMERE 8 Nov 2013 · Terraced · Freehold Previously £249,995 (Sep 2006) · 0%	8 Nov 2013	Terraced · Freehold	£250,000
40, THIRLMERE 30 Nov 2012 · Detached · Freehold Previously £242,500 (Sep 2007) · −1%	30 Nov 2012	Detached · Freehold	£240,000
16, THIRLMERE 29 Jun 2011 · Terraced · Freehold Previously £89,950 (Dec 1999) · +95%	29 Jun 2011	Terraced · Freehold	£175,000
36, THIRLMERE 1 Apr 2011 · Detached · Freehold Previously £245,000 (Jul 2006) · −6%	1 Apr 2011	Detached · Freehold	£230,000
52, THIRLMERE 1 Oct 2010 · Detached · Freehold Previously £176,950 (Dec 1999) · +81%	1 Oct 2010	Detached · Freehold	£320,000
24, THIRLMERE 23 Jul 2010 · Terraced · Freehold Previously £150,000 (Nov 2003) · +20%	23 Jul 2010	Terraced · Freehold	£180,000
58, THIRLMERE 23 Jul 2010 · Detached · Freehold Previously £380,000 (Jun 2007) · −4%	23 Jul 2010	Detached · Freehold	£364,995
38, THIRLMERE 7 Dec 2007 · Detached · Freehold Previously £154,000 (May 2002) · +61%	7 Dec 2007	Detached · Freehold	£247,500
40, THIRLMERE 6 Sep 2007 · Detached · Freehold Previously £136,950 (Nov 2000) · +77%	6 Sep 2007	Detached · Freehold	£242,500
58, THIRLMERE 29 Jun 2007 · Detached · Freehold Previously £312,000 (Jul 2003) · +22%	29 Jun 2007	Detached · Freehold	£380,000
4, THIRLMERE 20 Dec 2006 · Detached · Freehold Previously £199,950 (Dec 2000) · +51%	20 Dec 2006	Detached · Freehold	£302,500
42, THIRLMERE 19 Dec 2006 · Terraced · Freehold Previously £215,000 (Jun 2004) · +13%	19 Dec 2006	Terraced · Freehold	£242,000
34, THIRLMERE 27 Sep 2006 · Terraced · Freehold Previously £198,000 (Aug 2003) · +26%	27 Sep 2006	Terraced · Freehold	£249,995
36, THIRLMERE 17 Jul 2006 · Detached · Freehold Previously £137,950 (Dec 2000) · +78%	17 Jul 2006	Detached · Freehold	£245,000
12, THIRLMERE 8 Jul 2005 · Detached · Freehold Previously £142,950 (Aug 1999) · +75%	8 Jul 2005	Detached · Freehold	£250,000
42, THIRLMERE 18 Jun 2004 · Terraced · Freehold Previously £136,950 (Nov 2000) · +57%	18 Jun 2004	Terraced · Freehold	£215,000
20, THIRLMERE 24 Mar 2004 · Terraced · Freehold Previously £110,950 (Dec 1999) · +56%	24 Mar 2004	Terraced · Freehold	£173,000
50, THIRLMERE 4 Dec 2003 · Terraced · Freehold Previously £76,950 (Dec 1999) · +248%	4 Dec 2003	Terraced · Freehold	£267,500
24, THIRLMERE 28 Nov 2003 · Terraced · Freehold Previously £92,500 (Dec 1999) · +62%	28 Nov 2003	Terraced · Freehold	£150,000
34, THIRLMERE 1 Aug 2003 · Terraced · Freehold Previously £138,950 (Dec 2000) · +42%	1 Aug 2003	Terraced · Freehold	£198,000
58, THIRLMERE 4 Jul 2003 · Detached · Freehold Previously £225,950 (Aug 2000) · +38%	4 Jul 2003	Detached · Freehold	£312,000
28, THIRLMERE 9 May 2003 · Semi-detached · Freehold Previously £164,000 (May 2002) · +14%	9 May 2003	Semi-detached · Freehold	£187,000
2, THIRLMERE 14 Apr 2003 · Detached · Freehold	14 Apr 2003	Detached · Freehold	£250,000
26, THIRLMERE 28 Mar 2003 · Semi-detached · Freehold Previously £141,950 (Apr 2001) · +35%	28 Mar 2003	Semi-detached · Freehold	£192,000
8, THIRLMERE 27 Feb 2003 · Detached · Freehold Previously £160,000 (Oct 1999) · +62%	27 Feb 2003	Detached · Freehold	£259,995
28, THIRLMERE 22 May 2002 · Semi-detached · Freehold Previously £141,950 (Apr 2001) · +16%	22 May 2002	Semi-detached · Freehold	£164,000
38, THIRLMERE 10 May 2002 · Detached · Freehold Previously £136,950 (Oct 2000) · +12%	10 May 2002	Detached · Freehold	£154,000
26, THIRLMERE 27 Apr 2001 · Semi-detached · Freehold	27 Apr 2001	Semi-detached · Freehold	£141,950
28, THIRLMERE 12 Apr 2001 · Semi-detached · Freehold · New build	12 Apr 2001	Semi-detached · Freehold · New build	£141,950
30, THIRLMERE 1 Mar 2001 · Terraced · Freehold · New build	1 Mar 2001	Terraced · Freehold · New build	£139,950
32, THIRLMERE 23 Feb 2001 · Detached · Freehold · New build	23 Feb 2001	Detached · Freehold · New build	£138,950
22, THIRLMERE 25 Jan 2001 · Terraced · Freehold Previously £89,950 (Dec 1999) · +9%	25 Jan 2001	Terraced · Freehold	£98,000
4, THIRLMERE 21 Dec 2000 · Detached · Freehold · New build	21 Dec 2000	Detached · Freehold · New build	£199,950
34, THIRLMERE 15 Dec 2000 · Terraced · Freehold · New build	15 Dec 2000	Terraced · Freehold · New build	£138,950
36, THIRLMERE 14 Dec 2000 · Detached · Freehold · New build	14 Dec 2000	Detached · Freehold · New build	£137,950
42, THIRLMERE 30 Nov 2000 · Terraced · Freehold · New build	30 Nov 2000	Terraced · Freehold · New build	£136,950
40, THIRLMERE 3 Nov 2000 · Detached · Freehold · New build	3 Nov 2000	Detached · Freehold · New build	£136,950
38, THIRLMERE 31 Oct 2000 · Detached · Freehold · New build	31 Oct 2000	Detached · Freehold · New build	£136,950
54, THIRLMERE 22 Sep 2000 · Detached · Freehold · New build	22 Sep 2000	Detached · Freehold · New build	£186,950

Cat B An additional Price Paid entry (category B): a repossession, a buy-to-let with an identifiable mortgage, a purchase by a company or other non-private buyer, or a sale of another kind of property. Left out of every average.

Area

Postcode district: SG1
Country: England
Deprivation decile: 10 of 10
LSOA (2021): E01033024
Introduced: Dec 1999

From the English Index of Multiple Deprivation 2019, for the 2011 neighbourhood (LSOA) this postcode sits in. Decile 1 is the most deprived 10% of neighbourhoods in England, 10 the least; ranks are not comparable between nations.

UK House Price Index

North Hertfordshire, July 2026 (provisional)

Average price: £418,857
Change since July 2025: +5.3%
First-time buyers: £338,611

Average by property type

Detached: £797,923
Semi-detached: £481,741
Terraced: £377,970
Flat / maisonette: £226,679

The official index for North Hertfordshire as a whole, not SG1 6AH alone. It is a modelled average, adjusted for the mix of homes sold, so it differs from a median of recorded sales, and its newest months are revised as late registrations arrive. Source: UK House Price Index (about the data).

Location

Postcode centroid, not a specific property.

Nearby postcodes

Median sold price and number of sales, Jun 2023 – May 2026; otherwise the last sale, if it was in the last ten years.

SG1 6AQ £521,250 · 2 sales
SG1 6AG £538,500 · 1 sale
SG1 6AF £332,500 · 6 sales
SG1 4FS £485,250 · 2 sales
SG1 6AR £567,500 · 2 sales
SG1 6AP £420,000 · 7 sales
SG1 4GA £187,500 · 1 sale
SG1 4FR £415,000 · 2 sales
SG1 4QG no sale since 1995
SG1 4GB no sale since 2016
SG1 6AL £670,000 · 1 sale
SG1 4GD £225,000 · 1 sale