CO4 3BY maps, stats, and open data
CO4 3BY lies on Harwich Road in Colchester. CO4 3BY is located in the St Anne's and St John's electoral ward, within the local authority district of Colchester and the English Parliamentary constituency of Colchester. 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 January 1980.
CO4 3BY maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CO4 3BY geodata
| Easting | 601233 |
| Northing | 225659 |
| Latitude | 51.893140 |
| Longitude | 0.923117 |
Where is CO4 3BY?
| Street | Harwich Road |
| Town/City | Colchester |
| Country | England |
| Postcode District | CO4 |
CO4 3BY Elevation
Elevation or altitude of CO4 3BY as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 20m | 66ft |
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 | St Anne's And St John's |
|---|---|
| Constituency | Colchester |
House Prices
Sales of detached houses in CO4 3BY
2025 12 AUG £375,000 |
2015 16 APR £270,000 |
2014 5 FEB £262,000 |
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 CO4 3BY
| Longcroft Road (Harwich Road) | Colchester | 30m |
| Fairfield Gardens (Harwich Road) | Colchester | 88m |
| Dilbridge Road (Harwich Road) | Colchester | 131m |
| Whaley Road (St. Andrew's Avenue) | Colchester | 193m |
| St. Andrew's Gardens (St. Andrew's Avenue) | Colchester | 199m |
Nearest railway stations to CO4 3BY
| Hythe (Essex) Station | 0.9km |
| Colchester Town Station | 1.5km |
| Colchester Station | 2.3km |
Broadband
Broadband access in CO4 3BY (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 | 100.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in CO4 3BY (2019 data)
Download
| Median download speed | 32.8Mbps |
| Average download speed | 49.6Mbps |
| Maximum download speed | 200.00Mbps |
Upload
| Median upload speed | 5.3Mbps |
| Average upload speed | 5.4Mbps |
| Maximum upload speed | 9.79Mbps |
Broadband limitations in CO4 3BY (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% |
CO4 3BY gas and electricity consumption
Estimated total energy consumption in CO4 3BY by fuel type, 2015.
Gas
| Consumption (kWh) | 140,385 |
|---|---|
| Meter count | 9 |
| Mean (kWh/meter) | 15,598 |
| Median (kWh/meter) | 14,664 |
Electricity
| Consumption (kWh) | 17,756 |
|---|---|
| Meter count | 7 |
| Mean (kWh/meter) | 2,537 |
| Median (kWh/meter) | 2,849 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CO4 3BY, for 2015.
- Meter count: The total number of meters in CO4 3BY.
- 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
67.4% of English postcodes are less deprived than CO4 3BY:Food Standards Agency
Three nearest food hygiene ratings to CO4 3BY (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CO4 3BY
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Longcroft Road | 17:30 | 11:30 | 151m |
| Ipswich Road | 17:30 | 12:15 | 473m |
| Forest Road | 17:30 | 11:45 | 570m |
CO4 3BY ITL and CO4 3BY 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 CO4 3BY:
| ITL 1 Code | Name |
|---|---|
| TLH | East |
| ITL 2 Code | Name |
| TLH3 | Essex |
| ITL 3 Code | Name |
| TLH34 | Essex Haven Gateway |
| LAU 1 Code | Name |
| E07000071 | Colchester |
CO4 3BY 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 CO4 3BY:
| Code | Name | |
|---|---|---|
| OA | E00110256 | |
| LSOA | E01021704 | Colchester 022F |
| MSOA | E02006922 | Colchester 022 |
Nearest postcodes to CO4 3BY
| CO4 3BX | Harwich Road | 39m |
| CO4 3BZ | Harwich Road | 47m |
| CO4 0DZ | Compton Road | 53m |
| CO4 3BT | Harwich Road | 82m |
| CO4 3DA | Harwich Road | 85m |
| CO4 0BT | Dilbridge Road East | 91m |
| CO4 3BU | Harwich Road | 109m |
| CO4 3AS | Arnstones Close | 126m |
| CO4 0BS | Dilbridge Road East | 130m |
| CO4 3EQ | St Andrews Gardens | 147m |
- 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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