The UK Postcode Database

CO12 3SX

a postcode in Essex

Introduced in December 1996
CO12 3SX 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 CO12 3SX

St Denis Close - 33 properties, USRN 39902213

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

Coordinates

Latitude: 51.9261 / 51°55'34"N

Longitude: 1.2614 / 1°15'41"E

UTM Reference: 31U 380455 5754249

OS Easting: 624341

OS Northing: 230314

OS Grid: TM243303

Location Encoding

Mapcode Local: GBR VQX.7R2

Mapcode Global: VHLCF.TV79

Open Location Code: 9F33W7G6+CH

Maidenhead Locator System: JO01pw12

Demographics

Urban/Rural Indicator: C1

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

ONS Population Classification: 1a1

  • Retired Professionals
  • Spacious Rural Living
  • Pre-Retirement Spacious Living

Index of Multiple Deprivation (IMD): 24948 / 32844

  • 8th decile
  • less deprived

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

Sun and Moon Times for CO12 3SX on Sunday 21 June 2026

Nautical twilight begins (First light) 02:28
Civil twilight begins (Dawn) 03:46
Sunrise 04:35
Transit (sun is at its highest) 12:56
Sunset 21:18
Civil twilight ends (Dusk) 22:07
Nautical twilight ends (Nightfall) 23:24
Hours of daylight today04:05 to 21:48
Hours of darkness tonight
(lighting-up time)
21:48 to 04:05
Moon Phase First Quarter
Moon Rises 11:27
Moon sets 23:44

For a full sun and moon calendar for CO12 3SX, go to The Time and Place

Residential Property Sales in CO12 3SX

DateAddressProperty TypeTenurePrice
11 July 2023 39 St Denis Close, Harwich CO12 3SX Detached Freehold £310,000
5 August 2022 11 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £245,000
29 June 2022 7 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £205,000
26 May 2021 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £190,000
27 August 2019 4 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £210,000
31 May 2019 33 St Denis Close, Harwich CO12 3SX Detached Freehold £230,000
28 May 2019 1 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £186,000
22 June 2018 20 St Denis Close, Harwich CO12 3SX Detached Freehold £248,000
13 November 2017 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £177,000
2 November 2017 17 St Denis Close, Harwich CO12 3SX Detached Freehold £153,000
8 September 2017 39 St Denis Close, Harwich CO12 3SX Detached Freehold £250,000
25 August 2017 27 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £160,000
30 September 2016 3 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £160,000
31 March 2016 29 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £173,500
25 February 2016 16 St Denis Close, Harwich CO12 3SX Detached Freehold £224,950
21 January 2016 8 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £155,000
1 October 2015 41 St Denis Close, Harwich CO12 3SX Detached Freehold £173,250
25 July 2014 18 St Denis Close, Harwich CO12 3SX Detached Freehold £208,500
28 April 2014 6 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £143,500
12 November 2013 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £131,500
27 September 2013 39 St Denis Close, Harwich CO12 3SX Detached Freehold £175,000
2 August 2013 20 St Denis Close, Harwich CO12 3SX Detached Freehold £177,500
1 September 2011 37 St Denis Close, Harwich CO12 3SX Detached Freehold £143,000
6 May 2011 20 St Denis Close, Harwich CO12 3SX Detached Freehold £201,000
26 August 2010 5 St Denis Close, Harwich CO12 3SX Detached Freehold £170,000
16 July 2010 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £130,000
17 December 2009 20 St Denis Close, Harwich CO12 3SX Detached Freehold £183,500
2 July 2009 41 St Denis Close, Harwich CO12 3SX Detached Freehold £143,500
19 June 2009 35 St Denis Close, Harwich CO12 3SX Detached Freehold £150,000
22 September 2008 37 St Denis Close, Harwich CO12 3SX Detached Freehold £160,000
10 March 2008 11 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £157,000
4 January 2008 43 St Denis Close, Harwich CO12 3SX Detached Freehold £195,000
8 March 2007 2 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £176,000
16 January 2007 45 St Denis Close, Harwich CO12 3SX Detached Freehold £197,000
21 December 2006 14 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £139,000
7 December 2006 4 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £158,000
7 December 2006 19 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £145,500
23 October 2006 7 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £140,000
29 September 2006 1 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £147,000
31 August 2006 35 St Denis Close, Harwich CO12 3SX Detached Freehold £177,000
18 April 2006 5 St Denis Close, Harwich CO12 3SX Detached Freehold £173,500
29 November 2005 45 St Denis Close, Harwich CO12 3SX Detached Freehold £202,650
21 July 2005 4 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £147,500
9 June 2005 6 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £153,500
13 January 2005 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £132,000
21 September 2004 2 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £166,000
17 August 2004 11 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £135,000
2 June 2004 35 St Denis Close, Harwich CO12 3SX Detached Freehold £166,500
7 April 2004 7 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £119,000
19 March 2004 33 St Denis Close, Harwich CO12 3SX Detached Freehold £155,000
20 August 2003 27 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £106,000
14 March 2003 31 St Denis Close, Harwich CO12 3SX Detached Freehold £149,995
28 October 2002 43 St Denis Close, Harwich CO12 3SX Detached Freehold £155,000
30 August 2002 1 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £96,000
20 November 2001 45 St Denis Close, Harwich CO12 3SX Detached Freehold £139,000
5 July 2001 39 St Denis Close, Harwich CO12 3SX Detached Freehold £99,995
7 November 2000 16 St Denis Close, Harwich CO12 3SX Detached Freehold £99,000
13 October 2000 11 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £69,500
19 June 2000 39 St Denis Close, Harwich CO12 3SX Detached Freehold £94,995
26 May 2000 33 St Denis Close, Harwich CO12 3SX Detached Freehold £89,995
30 June 1999 5 St Denis Close, Harwich CO12 3SX Detached Freehold £64,000
18 June 1999 31 St Denis Close, Harwich CO12 3SX Detached Freehold £64,995
17 June 1999 21 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £49,995
14 May 1999 35 St Denis Close, Harwich CO12 3SX Detached Freehold £66,000
12 April 1999 7 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £51,000
9 April 1999 18 St Denis Close, Harwich CO12 3SX Detached Freehold £83,750
25 November 1998 17 St Denis Close, Harwich CO12 3SX Detached Freehold £45,000
22 October 1998 23 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £45,000
24 July 1998 10 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £45,000
1 May 1998 19 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £45,500
30 March 1998 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £45,995
30 September 1997 1 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £43,000
9 July 1997 31 St Denis Close, Harwich CO12 3SX Detached Freehold £55,000
8 July 1997 37 St Denis Close, Harwich CO12 3SX Detached Freehold £55,000
25 April 1997 33 St Denis Close, Harwich CO12 3SX Detached Freehold £59,000
16 April 1997 18 St Denis Close, Harwich CO12 3SX Detached Freehold £74,095
14 February 1997 45 St Denis Close, Harwich CO12 3SX Detached Freehold £74,995
13 January 1997 5 St Denis Close, Harwich CO12 3SX Detached Freehold £55,995
5 December 1996 9 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £41,325
29 November 1996 29 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £50,345
22 November 1996 41 St Denis Close, Harwich CO12 3SX Detached Freehold £56,525
28 October 1996 3 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £41,325
16 October 1996 7 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £44,500
9 October 1996 15 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £38,995
20 September 1996 19 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £40,995
12 September 1996 27 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £36,095
12 September 1996 17 St Denis Close, Harwich CO12 3SX Detached Freehold £39,500
12 September 1996 23 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £40,995
6 September 1996 21 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £40,995
30 August 1996 25 St Denis Close, Harwich CO12 3SX Terraced (including end-of-terrace) Freehold £37,045
27 August 1996 11 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £38,945
2 August 1996 39 St Denis Close, Harwich CO12 3SX Detached Freehold £62,225
1 August 1996 35 St Denis Close, Harwich CO12 3SX Detached Freehold £59,845
1 August 1996 43 St Denis Close, Harwich CO12 3SX Detached Freehold £67,500
31 July 1996 2 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £55,000
5 July 1996 16 St Denis Close, Harwich CO12 3SX Detached Freehold £65,075
28 June 1996 14 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £39,995
26 June 1996 12 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £41,500
26 June 1996 20 St Denis Close, Harwich CO12 3SX Detached Freehold £76,995
18 June 1996 8 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £41,995
7 June 1996 10 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £41,995
24 May 1996 6 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £50,350
10 May 1996 4 St Denis Close, Harwich CO12 3SX Semi-detached Freehold £52,995

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 CO12 3SX

United Kingdom Parliament
Constituency

Harwich and North Essex

MP

Bernard Jenkin Conservative

Essex County Council
County council electoral division

Harwich

Councillor

Ivan Henderson Labour

Tendring District Council
District council ward

Dovercourt All Saints

Councillors

Jo Henderson Labour

Maria Fowler Labour

CO12 3SX also falls within the Civil Parish of Harwich, 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 CO12 3SX

CodeNameData TypeData ThemeActive SinceData Owner
E00111787 Output Areas Statistical Building Block 1 January 2009 ONS
E01022005 Tendring 004E Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
E02004576 Tendring 004 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
E04004099 Harwich Civil Parishes Administrative 1 January 2009 DLUHC
E05011939 Dovercourt All Saints Electoral Wards/Divisions Administrative/Electoral 2 May 2019 DLUHC
E07000076 Tendring Non-metropolitan Districts Administrative 1 January 2009 DLUHC
E10000012 Essex Counties Administrative 1 January 2009 DLUHC
E12000006 East of England Regions Administrative 1 January 2009 DLUHC
E14001273 Harwich and North Essex Westminster Parliamentary Constituencies Electoral 4 July 2024 LGBC
E23000028 Essex Police Force Areas Other 1 January 2009 Home Office
E30000192 Clacton Travel to Work Areas Other 31 July 2015 ONS
E33026899 Workplace Zones Census 31 December 2011 ONS
E37000056 South East Local Enterprise Partnerships Other 1 April 2020 BEIS
E38000117 NHS North East Essex CCG Sub Integrated Care Board Locations Health 1 April 2020 ODS
E40000007 East of England NHS England Regions Health 1 April 2019 ODS
E54000023 Suffolk and North East Essex Integrated Care Boards Health 1 April 2020 NHS
E56000035 East of England Cancer Alliances Health 1 April 2024 NHS England
E58000438 Harwich ED County Electoral Divisions Electoral 10 June 2004 DLUHC
E63011115 Harwich 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 7.37 seconds. 216.73.217.114. Sun, 21 Jun 2026 07:42:24 +0100. Reticulating Splines.