The UK Postcode Database

SG3 6LT

a postcode in Hertfordshire

Introduced in January 1991
SG3 6LT Normal (geographic) postcodes Large user postcodes

The nearby postcodes map only shows currently active postcodes. Postcode markers will cluster if they are close together, which may happen in densly populated built-up areas or where single premises have multiple postcodes.

Streets Associated with SG3 6LT

Mardleybury Road - 21 properties, USRN 43011104

Carvers Croft - 1 property, USRN 43003186

Street names are those nearest to properties in this postcode, they are not necessarily the postal address

Coordinates

Latitude: 51.8505 / 51°51'1"N

Longitude: -0.178 / 0°10'40"W

UTM Reference: 30U 694356 5748175

OS Easting: 525589

OS Northing: 218446

OS Grid: TL255184

Location Encoding

Mapcode Local: GBR J8H.XFV

Mapcode Global: VHGP6.VRR8

Open Location Code: 9C3XVR2C+5Q

Maidenhead Locator System: IO91vu84

Demographics

Urban/Rural Indicator: C1

  • urban city or town
  • a town or city, surrounded by populated countryside

ONS Population Classification: 5a3

  • Ethnically Diverse Suburb-an Professionals
  • Outer Suburbs
  • Young Suburban Families

Index of Multiple Deprivation (IMD): 27937 / 32844

  • 9th decile
  • much less deprived

Demographics are based on the LSOA containing this postcode and not necessarily this postcode alone

Sun and Moon Times for SG3 6LT on Thursday 11 June 2026

Nautical twilight begins (First light) 02:38
Civil twilight begins (Dawn) 03:53
Sunrise 04:41
Transit (sun is at its highest) 13:00
Sunset 21:19
Civil twilight ends (Dusk) 22:06
Nautical twilight ends (Nightfall) 23:21
Hours of daylight today04:11 to 21:49
Hours of darkness tonight
(lighting-up time)
21:49 to 04:11
Moon Phase Waning Crescent
Moon Rises 01:00
Moon sets 16:15

For a full sun and moon calendar for SG3 6LT, go to The Time and Place

Residential Property Sales in SG3 6LT

DateAddressProperty TypeTenurePrice
25 October 2023 20 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £340,000
13 July 2022 8 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £390,000
8 February 2022 32 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £350,000
31 March 2020 26 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £273,000
20 August 2018 8 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £300,500
21 February 2017 22 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £275,000
15 March 2016 6 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £298,000
6 March 2015 32 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £269,950
8 April 2014 20 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £229,995
13 September 2012 14 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £142,500
16 November 2011 20 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £186,250
5 July 2011 36 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £225,000
18 December 2009 32 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £170,000
25 April 2008 26 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £171,000
19 June 2007 32 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £186,000
20 October 2006 28 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £152,995
31 May 2006 24 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £170,000
5 September 2005 4 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £187,000
27 June 2005 6 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £189,950
26 July 2004 6 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £188,000
22 July 2004 32 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £172,500
10 October 2003 32 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £162,500
26 June 2003 2 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £159,000
31 January 2003 28 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £119,995
27 September 2002 20 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £152,500
2 September 2002 14 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £115,000
26 July 2002 36 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £159,000
5 April 2002 30 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £131,000
6 November 2001 28 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £93,500
12 July 2001 18 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £95,000
22 June 2001 6 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £129,950
2 March 2001 10 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £117,000
11 January 2001 4 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £125,000
15 December 2000 40 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £124,000
12 December 2000 26 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £93,500
29 February 2000 28 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £76,000
17 December 1999 42 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £105,000
29 October 1999 24 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £89,000
1 September 1999 38 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £88,500
27 August 1999 14 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £64,000
11 June 1999 30 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £87,000
21 May 1999 28 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £62,000
31 July 1998 20 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £82,000
16 January 1998 2 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £75,000
31 October 1997 18 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £66,500
21 March 1997 40 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £77,000
21 March 1997 6 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £66,000
6 March 1997 16 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £55,000
6 March 1997 18 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £61,000
5 March 1997 24 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £64,500
18 February 1997 12 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £49,950
14 February 1997 4 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £74,000
31 January 1997 28 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £51,500
14 August 1996 38 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £60,000
19 July 1996 36 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £76,950
5 July 1996 20 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £63,750
21 April 1995 40 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £73,000
13 April 1995 42 Mardleybury Road, Woolmer Green, Knebworth SG3 6LT Terraced (including end-of-terrace) Freehold £71,000

Key to property sale icons:

First sale of newbuild property. This includes new properties created from existing properties, such as residential conversions of commercial or agricultural property, or subdivision of a larger residential property.
Subsequent sale of existing property.
Standard sale at market value to private individual.
Additional (non-standard) sale. This includes repossessions, buy-to-lets and transfers of property sold to non-private individuals.

Elected Representatives for SG3 6LT

United Kingdom Parliament
Constituency

Welwyn Hatfield

MP

Andrew Lewin Labour

Hertfordshire County Council
County council electoral division

Welwyn

Councillor

Tony Kingsbury Conservative

Welwyn Hatfield Borough Council
District council ward

Welwyn East

Councillors

Julie Cragg Conservative

Terry Mitchinson Conservative

Roger Trigg Conservative

SG3 6LT also falls within the Civil Parish of Woolmer Green, which has its own parish council and parish councillors. These are not shown here.

Elected representative data is updated approximately monthly, so may not include recent by-elections or vacancies.

Government Statistical Services (GSS) data for SG3 6LT

CodeNameData TypeData ThemeActive SinceData Owner
E00121698 Output Areas Statistical Building Block 1 January 2009 ONS
E01023967 Welwyn Hatfield 001C Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
E02004980 Welwyn Hatfield 001 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
E04004823 Woolmer Green Civil Parishes Administrative 1 January 2009 DLUHC
E05011072 Welwyn East Electoral Wards/Divisions Administrative/Electoral 5 May 2016 DLUHC
E07000241 Welwyn Hatfield Non-metropolitan Districts Administrative 1 April 2012 DLUHC
E10000015 Hertfordshire Counties Administrative 1 January 2009 DLUHC
E12000006 East of England Regions Administrative 1 January 2009 DLUHC
E14001573 Welwyn Hatfield Westminster Parliamentary Constituencies Electoral 4 July 2024 LGBC
E23000027 Hertfordshire Police Force Areas Other 1 January 2009 Home Office
E30000272 Stevenage and Welwyn Garden City Travel to Work Areas Other 31 July 2015 ONS
E33027624 Workplace Zones Census 31 December 2011 ONS
E37000048 Hertfordshire Local Enterprise Partnerships Other 1 April 2020 BEIS
E38000049 NHS East and North Hertfordshire CCG Sub Integrated Care Board Locations Health 1 April 2020 ODS
E40000007 East of England NHS England Regions Health 1 April 2019 ODS
E54000025 NHS Hertfordshire and West Essex Integrated Care Board Integrated Care Boards Health 1 July 2022 ODS
E56000035 East of England Cancer Alliances Health 1 April 2024 NHS England
E58000675 Welwyn ED County Electoral Divisions Electoral 4 May 2017 DLUHC
E63011372 Woolmer Green Built Up Areas Census 17 April 2024 OS
E65000001 England Non-National Park Area England Non-National Park Area Census 27 February 2023 ONS
E92000001 England Country Administrative 1 January 2009 ONS

All public sector data is licensed under the Open Government Licence v2.0.

The UK Postcode Database is a Good Stuff website.

Page generated in 4.32 seconds. 216.73.216.136. Thu, 11 Jun 2026 15:39:30 +0100. Reticulating Splines.