SG1 6AY

Blackdown Close, Stevenage

Median, last 3 years

£500,000

1 sale, Jun 2023 – May 2026

Last standard sale

£500,000

16 Feb 2026

Standard sales

since 2000 (+1 additional entry)

SG1 district median

£350,000

526 sales, 12 months to May 2026

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

2012 to 2026. Every year since 2000 is in the figures below.

The paler 2026 bar covers January to August only, and its latest months are still filling in as sales are registered.

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
2026 (to August) (few sales)	£500,000	1
2021	£435,000	3
2020 (few sales)	£380,000	1
2019 (few sales)	£368,000	1
2018 (few sales)	£351,000	1
2017 (few sales)	£391,498	2
2015 (few sales)	£210,000	1
2012 (few sales)	£246,000	1
2010 (few sales)	£189,995	1
2009 (few sales)	£240,000	1
2008 (few sales)	£276,000	2
2007 (few sales)	£223,000	1
2006	£242,000	3
2005	£200,500	5
2004	£238,000	4
2003	£179,000	5
2002 (few sales)	£146,250	2
2001	£148,000	5
2000	£128,000	19

Sale history (60 records · 17 homes sold more than once)

Address	Date	Type	Price
41, BLACKDOWN CLOSE 16 Feb 2026 · Semi-detached · Freehold Previously £246,000 (Jan 2012) · +103%	16 Feb 2026	Semi-detached · Freehold	£500,000
21, BLACKDOWN CLOSE 1 Jul 2021 · Semi-detached · Freehold Previously £240,000 (Oct 2009) · +81%	1 Jul 2021	Semi-detached · Freehold	£435,000
39, BLACKDOWN CLOSE 2 Jun 2021 · Detached · Freehold Previously £137,000 (Sep 2000) · +228%	2 Jun 2021	Detached · Freehold	£450,000
15, BLACKDOWN CLOSE 22 Jan 2021 · Terraced · Freehold Previously £210,000 (Jan 2015) · +30%	22 Jan 2021	Terraced · Freehold	£274,000
45, BLACKDOWN CLOSE 10 Jul 2020 · Terraced · Freehold Previously £383,000 (Jun 2017) · −1%	10 Jul 2020	Terraced · Freehold	£380,000
17, BLACKDOWN CLOSE 4 Jul 2019 · Terraced · Freehold Previously £104,000 (Apr 2000) · +254%	4 Jul 2019	Terraced · Freehold	£368,000
27, BLACKDOWN CLOSE 19 Mar 2018 · Semi-detached · Freehold Previously £223,000 (Jul 2007) · +57%	19 Mar 2018	Semi-detached · Freehold	£351,000
9, BLACKDOWN CLOSE Cat B 23 Jun 2017 · Terraced · Freehold Previously £182,500 (Oct 2005)	23 Jun 2017	Terraced · Freehold	£287,500
45, BLACKDOWN CLOSE 16 Jun 2017 · Terraced · Freehold Previously £245,000 (Oct 2005) · +56%	16 Jun 2017	Terraced · Freehold	£383,000
47, BLACKDOWN CLOSE 16 Jun 2017 · Terraced · Freehold Previously £279,000 (Feb 2008) · +43%	16 Jun 2017	Terraced · Freehold	£399,995
15, BLACKDOWN CLOSE 16 Jan 2015 · Terraced · Freehold Previously £160,000 (Sep 2005) · +31%	16 Jan 2015	Terraced · Freehold	£210,000
41, BLACKDOWN CLOSE 9 Jan 2012 · Semi-detached · Freehold Previously £150,500 (Feb 2001) · +63%	9 Jan 2012	Semi-detached · Freehold	£246,000
33, BLACKDOWN CLOSE 15 Feb 2010 · Semi-detached · Freehold Previously £113,000 (Aug 2000) · +68%	15 Feb 2010	Semi-detached · Freehold	£189,995
21, BLACKDOWN CLOSE 20 Oct 2009 · Semi-detached · Freehold Previously £247,000 (Jun 2004) · −3%	20 Oct 2009	Semi-detached · Freehold	£240,000
23, BLACKDOWN CLOSE 29 Apr 2008 · Semi-detached · Freehold Previously £157,000 (Aug 2000) · +74%	29 Apr 2008	Semi-detached · Freehold	£273,000
47, BLACKDOWN CLOSE 22 Feb 2008 · Terraced · Freehold Previously £247,500 (Jun 2006) · +13%	22 Feb 2008	Terraced · Freehold	£279,000
27, BLACKDOWN CLOSE 27 Jul 2007 · Semi-detached · Freehold Previously £210,000 (Sep 2005) · +6%	27 Jul 2007	Semi-detached · Freehold	£223,000
5, BLACKDOWN CLOSE 27 Jul 2006 · Semi-detached · Freehold Previously £105,000 (Mar 2000) · +81%	27 Jul 2006	Semi-detached · Freehold	£189,995
43, BLACKDOWN CLOSE 4 Jul 2006 · Semi-detached · Freehold Previously £230,000 (May 2004) · +5%	4 Jul 2006	Semi-detached · Freehold	£242,000
47, BLACKDOWN CLOSE 22 Jun 2006 · Terraced · Freehold Previously £243,000 (Apr 2004) · +2%	22 Jun 2006	Terraced · Freehold	£247,500
9, BLACKDOWN CLOSE 24 Oct 2005 · Terraced · Freehold Previously £124,000 (Mar 2002) · +47%	24 Oct 2005	Terraced · Freehold	£182,500
45, BLACKDOWN CLOSE 14 Oct 2005 · Terraced · Freehold Previously £233,000 (Aug 2004) · +5%	14 Oct 2005	Terraced · Freehold	£245,000
29, BLACKDOWN CLOSE 28 Sep 2005 · Terraced · Freehold Previously £128,000 (Aug 2000) · +57%	28 Sep 2005	Terraced · Freehold	£200,500
27, BLACKDOWN CLOSE 27 Sep 2005 · Semi-detached · Freehold Previously £179,000 (Dec 2003) · +17%	27 Sep 2005	Semi-detached · Freehold	£210,000
15, BLACKDOWN CLOSE 23 Sep 2005 · Terraced · Freehold Previously £144,950 (Jun 2003) · +10%	23 Sep 2005	Terraced · Freehold	£160,000
45, BLACKDOWN CLOSE 23 Aug 2004 · Terraced · Freehold Previously £222,600 (Mar 2003) · +5%	23 Aug 2004	Terraced · Freehold	£233,000
21, BLACKDOWN CLOSE 30 Jun 2004 · Semi-detached · Freehold Previously £154,500 (Jul 2000) · +60%	30 Jun 2004	Semi-detached · Freehold	£247,000
43, BLACKDOWN CLOSE 13 May 2004 · Semi-detached · Freehold Previously £148,000 (Apr 2001) · +55%	13 May 2004	Semi-detached · Freehold	£230,000
47, BLACKDOWN CLOSE 21 Apr 2004 · Terraced · Freehold Previously £215,000 (May 2003) · +13%	21 Apr 2004	Terraced · Freehold	£243,000
27, BLACKDOWN CLOSE 5 Dec 2003 · Semi-detached · Freehold Previously £130,000 (Sep 2000) · +38%	5 Dec 2003	Semi-detached · Freehold	£179,000
15, BLACKDOWN CLOSE 13 Jun 2003 · Terraced · Freehold Previously £92,000 (Apr 2000) · +58%	13 Jun 2003	Terraced · Freehold	£144,950
47, BLACKDOWN CLOSE 30 May 2003 · Terraced · Freehold Previously £150,000 (Dec 2000) · +43%	30 May 2003	Terraced · Freehold	£215,000
45, BLACKDOWN CLOSE 18 Mar 2003 · Terraced · Freehold Previously £148,000 (Apr 2001) · +50%	18 Mar 2003	Terraced · Freehold	£222,600
7, BLACKDOWN CLOSE 16 Jan 2003 · Terraced · Freehold Previously £105,000 (Mar 2000) · +52%	16 Jan 2003	Terraced · Freehold	£160,000
3, BLACKDOWN CLOSE 2 Aug 2002 · Semi-detached · Freehold Previously £125,000 (Jun 2000) · +35%	2 Aug 2002	Semi-detached · Freehold	£168,500
9, BLACKDOWN CLOSE 22 Mar 2002 · Terraced · Freehold Previously £104,000 (Apr 2000) · +19%	22 Mar 2002	Terraced · Freehold	£124,000
19, BLACKDOWN CLOSE 19 Oct 2001 · Semi-detached · Freehold Previously £148,000 (Apr 2000) · +19%	19 Oct 2001	Semi-detached · Freehold	£176,000
43, BLACKDOWN CLOSE 11 Apr 2001 · Semi-detached · Freehold · New build	11 Apr 2001	Semi-detached · Freehold · New build	£148,000
45, BLACKDOWN CLOSE 6 Apr 2001 · Terraced · Freehold · New build	6 Apr 2001	Terraced · Freehold · New build	£148,000
41, BLACKDOWN CLOSE 26 Feb 2001 · Detached · Freehold · New build	26 Feb 2001	Detached · Freehold · New build	£150,500
1, BLACKDOWN CLOSE 22 Feb 2001 · Semi-detached · Freehold · New build	22 Feb 2001	Semi-detached · Freehold · New build	£133,000
47, BLACKDOWN CLOSE 1 Dec 2000 · Terraced · Freehold · New build	1 Dec 2000	Terraced · Freehold · New build	£150,000
37, BLACKDOWN CLOSE 30 Nov 2000 · Terraced · Freehold · New build	30 Nov 2000	Terraced · Freehold · New build	£157,500
27, BLACKDOWN CLOSE 27 Sep 2000 · Semi-detached · Freehold · New build	27 Sep 2000	Semi-detached · Freehold · New build	£130,000
39, BLACKDOWN CLOSE 15 Sep 2000 · Detached · Freehold · New build	15 Sep 2000	Detached · Freehold · New build	£137,000
35, BLACKDOWN CLOSE 1 Sep 2000 · Semi-detached · Freehold · New build	1 Sep 2000	Semi-detached · Freehold · New build	£156,000
33, BLACKDOWN CLOSE 18 Aug 2000 · Semi-detached · Freehold · New build	18 Aug 2000	Semi-detached · Freehold · New build	£113,000
31, BLACKDOWN CLOSE 18 Aug 2000 · Semi-detached · Freehold · New build	18 Aug 2000	Semi-detached · Freehold · New build	£113,500
29, BLACKDOWN CLOSE 18 Aug 2000 · Terraced · Freehold · New build	18 Aug 2000	Terraced · Freehold · New build	£128,000
23, BLACKDOWN CLOSE 4 Aug 2000 · Semi-detached · Freehold · New build	4 Aug 2000	Semi-detached · Freehold · New build	£157,000

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: 8 of 10
LSOA (2021): E01033026
Introduced: Jun 2000

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 6AY 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 6AX £435,000 · 7 sales
SG1 6AZ £321,500 · 12 sales
SG1 6BB £473,750 · 2 sales
SG1 6BA £382,500 · 4 sales
SG1 6DR £370,000 · 10 sales
SG1 6DP £226,000 · last sale 2022
SG1 6BH £376,250 · 8 sales
SG1 6DQ £209,000 · 1 sale
SG1 6DU £177,000 · last sale 2023
SG1 6GA £175,000 · 1 sale
SG1 6DS £362,500 · 4 sales
SG1 6EA £331,000 · 8 sales