CM3 3BX maps, stats, and open data
CM3 3BX lies on Seabrook Gardens in Boreham, Chelmsford. CM3 3BX is located in the Boreham and The Leighs electoral ward, within the local authority district of Chelmsford and the English Parliamentary constituency of Saffron Walden. The Sub Integrated Care Board (ICB) Location is NHS Mid and South Essex ICB - 06Q and the police force is Essex. This postcode has been in use since January 1980.
CM3 3BX maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CM3 3BX geodata
| Easting | 575571 |
| Northing | 210008 |
| Latitude | 51.761230 |
| Longitude | 0.542665 |
Where is CM3 3BX?
| Street | Seabrook Gardens |
| Locality | Boreham |
| Town/City | Chelmsford |
| Country | England |
| Postcode District | CM3 |
CM3 3BX Elevation
Elevation or altitude of CM3 3BX as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 40m | 131ft |
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 | Boreham And The Leighs |
|---|---|
| Constituency | Saffron Walden |
House Prices
Sales of detached houses in CM3 3BX
2025 15 DEC £520,000 |
9, SEABROOK GARDENS, BOREHAM, CHELMSFORD, CM3 3BX 2021 19 FEB £365,000 |
2016 15 MAR £412,000 |
2010 15 DEC £265,000 |
5, SEABROOK GARDENS, BOREHAM, CHELMSFORD, CM3 3BX 2005 14 OCT £247,000 |
5, SEABROOK GARDENS, BOREHAM, CHELMSFORD, CM3 3BX 2001 27 JUL £148,000 |
2000 1 NOV £165,000 |
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 CM3 3BX
| Hurrell Down (Main Road) | Boreham | 158m |
| Hurrell Down (Main Road) | Boreham | 169m |
| Plantation Road | Boreham | 301m |
| Plantation Road | Boreham | 308m |
| Recreation Ground (Main Road) | Boreham | 323m |
Nearest railway stations to CM3 3BX
| Hatfield Peverel Station | 4km |
Broadband
Broadband access in CM3 3BX (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 CM3 3BX (2019 data)
Download
| Median download speed | 34.2Mbps |
| Average download speed | 28.3Mbps |
| Maximum download speed | 48.51Mbps |
Upload
| Median upload speed | 4.7Mbps |
| Average upload speed | 4.6Mbps |
| Maximum upload speed | 9.22Mbps |
Broadband limitations in CM3 3BX (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% |
CM3 3BX gas and electricity consumption
Estimated total energy consumption in CM3 3BX by fuel type, 2015.
Gas
| Consumption (kWh) | 229,568 |
|---|---|
| Meter count | 18 |
| Mean (kWh/meter) | 12,754 |
| Median (kWh/meter) | 14,370 |
Electricity
| Consumption (kWh) | 61,241 |
|---|---|
| Meter count | 15 |
| Mean (kWh/meter) | 4,083 |
| Median (kWh/meter) | 3,825 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CM3 3BX, for 2015.
- Meter count: The total number of meters in CM3 3BX.
- 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
25.7% of English postcodes are less deprived than CM3 3BX:Food Standards Agency
Three nearest food hygiene ratings to CM3 3BX (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CM3 3BX
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Essex Distribution Centre | 3,019m | ||
| Chelmer Village Way | 17:40 | 12:00 | 3,066m |
| Havengore | 17:45 | 11:30 | 3,496m |
CM3 3BX ITL and CM3 3BX 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 CM3 3BX:
| ITL 1 Code | Name |
|---|---|
| TLH | East |
| ITL 2 Code | Name |
| TLH3 | Essex |
| ITL 3 Code | Name |
| TLH36 | Heart of Essex |
| LAU 1 Code | Name |
| E07000070 | Chelmsford |
CM3 3BX 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 CM3 3BX:
| Code | Name | |
|---|---|---|
| OA | E00109414 | |
| LSOA | E01021537 | Chelmsford 005B |
| MSOA | E02004489 | Chelmsford 005 |
Nearest postcodes to CM3 3BX
| CM3 3BY | St Andrews Road | 69m |
| CM3 3DL | St Andrews Road | 76m |
| CM3 3BS | Butterfield Road | 118m |
| CM3 3JH | Main Road | 124m |
| CM3 3DA | Fitzwalter Road | 164m |
| CM3 3BZ | Claypits Road | 166m |
| CM3 3EE | Haselfoot Road | 170m |
| CM3 3JF | Main Road | 173m |
| CM3 3ED | Sussex Close | 173m |
| CM3 3DD | Falkland Close | 190m |
- 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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