CO12 3SX maps, stats, and open data
CO12 3SX lies on St Denis Close in Harwich. CO12 3SX is located in the Dovercourt All Saints electoral ward, within the local authority district of Tendring and the English Parliamentary constituency of Harwich and North Essex. The Sub Integrated Care Board (ICB) Location is NHS Suffolk and North East Essex ICB - 06T and the police force is Essex. This postcode has been in use since December 1996.
CO12 3SX maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CO12 3SX geodata
| Easting | 624341 |
| Northing | 230314 |
| Latitude | 51.926112 |
| Longitude | 1.261418 |
Where is CO12 3SX?
| Street | St Denis Close |
| Town/City | Harwich |
| Country | England |
| Postcode District | CO12 |
CO12 3SX Elevation
Elevation or altitude of CO12 3SX as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 10m | 33ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Dovercourt All Saints |
|---|---|
| Constituency | Harwich And North Essex |
House Prices
Sales of detached houses in CO12 3SX
35, ST DENIS CLOSE, HARWICH, CO12 3SX 2026 26 FEB £265,000 |
35, ST DENIS CLOSE, HARWICH, CO12 3SX 2024 12 SEP £255,000 |
39, ST DENIS CLOSE, HARWICH, CO12 3SX 2023 11 JUL £310,000 |
33, ST DENIS CLOSE, HARWICH, CO12 3SX 2019 31 MAY £230,000 |
20, ST DENIS CLOSE, HARWICH, CO12 3SX 2018 22 JUN £248,000 |
17, ST DENIS CLOSE, HARWICH, CO12 3SX 2017 2 NOV £153,000 |
39, ST DENIS CLOSE, HARWICH, CO12 3SX 2017 8 SEP £250,000 |
16, ST DENIS CLOSE, HARWICH, CO12 3SX 2016 25 FEB £224,950 |
41, ST DENIS CLOSE, HARWICH, CO12 3SX 2015 1 OCT £173,250 |
18, ST DENIS CLOSE, HARWICH, CO12 3SX 2014 25 JUL £208,500 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to CO12 3SX
| Greenacres (Low Road) | Upper Dovercourt | 68m |
| Greenacres (Low Road) | Upper Dovercourt | 138m |
| Hall Lane (Low Road) | Upper Dovercourt | 156m |
| Hall Lane (Low Road) | Upper Dovercourt | 159m |
| Newport Close (Abbott Road) | Upper Dovercourt | 272m |
Nearest railway stations to CO12 3SX
| Dovercourt Station | 1.9km |
| Harwich International Station | 2.4km |
| Harwich Town Station | 2.7km |
Broadband
Broadband access in CO12 3SX (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in CO12 3SX (2019 data)
Download
| Median download speed | 40.0Mbps |
| Average download speed | 37.3Mbps |
| Maximum download speed | 79.65Mbps |
Upload
| Median upload speed | 10.0Mbps |
| Average upload speed | 11.2Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in CO12 3SX (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
CO12 3SX gas and electricity consumption
Estimated total energy consumption in CO12 3SX by fuel type, 2015.
Gas
| Consumption (kWh) | 248,117 |
|---|---|
| Meter count | 30 |
| Mean (kWh/meter) | 8,271 |
| Median (kWh/meter) | 8,207 |
Electricity
| Consumption (kWh) | 82,611 |
|---|---|
| Meter count | 28 |
| Mean (kWh/meter) | 2,950 |
| Median (kWh/meter) | 2,718 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CO12 3SX, for 2015.
- Meter count: The total number of meters in CO12 3SX.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
22.6% of English postcodes are less deprived than CO12 3SX:Food Standards Agency
Three nearest food hygiene ratings to CO12 3SX (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CO12 3SX
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Hall Lane | 17:30 | 11:30 | 250m |
| Caravan Site Low Road | 17:30 | 11:30 | 390m |
| Frobisher Road | 17:30 | 11:30 | 483m |
Environment
| Risk of CO12 3SX flooding from rivers and sea | Low |
CO12 3SX ITL and CO12 3SX LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for CO12 3SX:
| ITL 1 Code | Name |
|---|---|
| TLH | East |
| ITL 2 Code | Name |
| TLH3 | Essex |
| ITL 3 Code | Name |
| TLH34 | Essex Haven Gateway |
| LAU 1 Code | Name |
| E07000076 | Tendring |
CO12 3SX census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for CO12 3SX:
| Code | Name | |
|---|---|---|
| OA | E00111787 | |
| LSOA | E01022005 | Tendring 004E |
| MSOA | E02004576 | Tendring 004 |
Nearest postcodes to CO12 3SX
| CO12 3SW | St Edmunds Close | 84m |
| CO12 3SD | Louvain Road | 100m |
| CO12 3SN | Bruges Close | 123m |
| CO12 3SL | Vienna Close | 160m |
| CO12 3TS | Low Road | 176m |
| CO12 3TR | Low Road | 177m |
| CO12 3TT | Brookmans Farm Cottages | 181m |
| CO12 4XJ | Hudson Close | 187m |
| CO12 3SF | Brussels Close | 216m |
| CO12 4XL | Newport Close | 267m |
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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