CM3 1JW maps, stats, and open data
CM3 1JW lies on Castlefields in Great Leighs, Chelmsford. CM3 1JW 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 August 2002.
CM3 1JW maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CM3 1JW geodata
| Easting | 572688 |
| Northing | 217166 |
| Latitude | 51.826422 |
| Longitude | 0.504494 |
Where is CM3 1JW?
| Street | Castlefields |
| Locality | Great Leighs |
| Town/City | Chelmsford |
| Country | England |
| Postcode District | CM3 |
CM3 1JW Elevation
Elevation or altitude of CM3 1JW as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 60m | 197ft |
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 1JW
2023 10 AUG £497,500 |
2018 20 AUG £375,000 |
2018 13 AUG £428,000 |
2013 9 AUG £341,000 |
2011 29 JUN £325,000 |
2010 29 OCT £315,000 |
2008 4 APR £365,000 |
2005 28 FEB £292,000 |
1, CASTLEFIELDS, GREAT LEIGHS, CHELMSFORD, CM3 1JW 2003 1 AUG £290,995 |
2003 18 JUL £335,000 |
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 1JW
| St. Annes Castle (Main Road) | Great Leighs | 72m |
| St. Annes Castle (Main Road) | Great Leighs | 73m |
| Aragon Road (Main Road) | Great Leighs | 199m |
| Rochester Farm (Main Road) | Great Leighs | 246m |
| Rochester Farm (Main Road) | Great Leighs | 263m |
Nearest railway stations to CM3 1JW
| Cressing Station | 5.8km |
| Braintree Freeport Station | 6.5km |
Broadband
Broadband access in CM3 1JW (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 1JW (2019 data)
Download
| Median download speed | 72.0Mbps |
| Average download speed | 64.5Mbps |
| Maximum download speed | 77.10Mbps |
Upload
| Median upload speed | 19.5Mbps |
| Average upload speed | 17.5Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in CM3 1JW (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 1JW gas and electricity consumption
Estimated total energy consumption in CM3 1JW by fuel type, 2015.
Gas
| Consumption (kWh) | 208,155 |
|---|---|
| Meter count | 10 |
| Mean (kWh/meter) | 20,816 |
| Median (kWh/meter) | 22,581 |
Electricity
| Consumption (kWh) | 51,510 |
|---|---|
| Meter count | 10 |
| Mean (kWh/meter) | 5,151 |
| Median (kWh/meter) | 4,993 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CM3 1JW, for 2015.
- Meter count: The total number of meters in CM3 1JW.
- 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
27.8% of English postcodes are less deprived than CM3 1JW:Food Standards Agency
Three nearest food hygiene ratings to CM3 1JW (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CM3 1JW
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Fuller Street | 16:45 | 07:30 | 2,339m |
| Ranks Green | 16:30 | 07:45 | 2,426m |
| Youngs End | 16:00 | 07:30 | 2,720m |
CM3 1JW ITL and CM3 1JW 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 1JW:
| 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 1JW 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 1JW:
| Code | Name | |
|---|---|---|
| OA | E00171010 | |
| LSOA | E01021538 | Chelmsford 001A |
| MSOA | E02004485 | Chelmsford 001 |
Nearest postcodes to CM3 1JW
| CM3 1JL | Brickbarns | 30m |
| CM3 1JJ | Brickbarns | 54m |
| CM3 1GS | School Lane | 90m |
| CM3 1QS | Pearmains | 114m |
| CM3 1PY | Glovers | 127m |
| CM3 1NY | Bohun Close | 133m |
| CM3 1NX | Rich Close | 166m |
| CM3 1GU | School Lane | 188m |
| CM3 1GT | Fayrewood Drive | 196m |
| CM3 1NU | Chatley Road | 222m |
- 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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