CM1 3NF maps, stats, and open data
CM1 3NF lies on Ongar Road in Writtle, Chelmsford. CM1 3NF is located in the Writtle 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.
CM1 3NF maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
CM1 3NF geodata
| Easting | 566859 |
| Northing | 206182 |
| Latitude | 51.729523 |
| Longitude | 0.414717 |
Where is CM1 3NF?
| Street | Ongar Road |
| Locality | Writtle |
| Town/City | Chelmsford |
| Country | England |
| Postcode District | CM1 |
CM1 3NF Elevation
Elevation or altitude of CM1 3NF as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 50m | 164ft |
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 | Writtle |
|---|---|
| Constituency | Saffron Walden |
House Prices
Sales of detached houses in CM1 3NF
161, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NF 2025 21 MAR £545,000 |
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 CM1 3NF
| Chequers Road | Oxney Green | 116m |
| Ongar Road | Oxney Green | 132m |
| Ongar Road | Oxney Green | 174m |
| Purcell Cole (Ongar Road) | Writtle | 258m |
| Lodge Road | Oxney Green | 297m |
Nearest railway stations to CM1 3NF
| Chelmsford Station | 3.8km |
Broadband
Broadband access in CM1 3NF (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 CM1 3NF (2019 data)
Download
| Median download speed | 18.1Mbps |
| Average download speed | 42.1Mbps |
| Maximum download speed | 80.00Mbps |
Upload
| Median upload speed | 1.2Mbps |
| Average upload speed | 8.7Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in CM1 3NF (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% |
CM1 3NF gas and electricity consumption
Estimated total energy consumption in CM1 3NF by fuel type, 2015.
Gas
| Consumption (kWh) | 127,022 |
|---|---|
| Meter count | 8 |
| Mean (kWh/meter) | 15,878 |
| Median (kWh/meter) | 13,341 |
Electricity
| Consumption (kWh) | 18,020 |
|---|---|
| Meter count | 7 |
| Mean (kWh/meter) | 2,574 |
| Median (kWh/meter) | 2,286 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in CM1 3NF, for 2015.
- Meter count: The total number of meters in CM1 3NF.
- 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
32.3% of English postcodes are less deprived than CM1 3NF:Food Standards Agency
Three nearest food hygiene ratings to CM1 3NF (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to CM1 3NF
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Long Brandocks | 16:50 | 08:45 | 526m |
| Writtle P.o. | 17:30 | 12:00 | 962m |
| Lodge Road | 16:45 | 09:00 | 983m |
CM1 3NF ITL and CM1 3NF 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 CM1 3NF:
| 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 |
CM1 3NF 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 CM1 3NF:
| Code | Name | |
|---|---|---|
| OA | E00109890 | |
| LSOA | E01021635 | Chelmsford 011E |
| MSOA | E02004495 | Chelmsford 011 |
Nearest postcodes to CM1 3NF
| CM1 3NH | Mansfields | 105m |
| CM1 3LY | Redwood Drive | 136m |
| CM1 3AX | East View | 172m |
| CM1 3JR | Long Brandocks | 173m |
| CM1 3PA | Victoria Road | 179m |
| CM1 3JW | Long Brandocks | 180m |
| CM1 3NX | Ongar Road | 181m |
| CM1 3NL | East View | 195m |
| CM1 3NG | Chequers Road | 199m |
| CM1 3JN | Long Brandocks | 204m |
- 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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