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CM1 3NT maps, stats, and open data

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CM1 3NT lies on Ongar Road in Writtle, Chelmsford. CM1 3NT 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 3NT maps

CM1 3NT map - OS OpenMap – Local (Ordnance Survey)CM1 3NT map - OS VectorMap District (Ordnance Survey)
Source: OS OpenMap – Local (Ordnance Survey)
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)

CM1 3NT geodata

Easting566093
Northing205892
Latitude51.727150
Longitude0.403524
Source: Open Postcode Geo
Licence: Open Government Licence

Where is CM1 3NT?

StreetOngar Road
LocalityWrittle
Town/CityChelmsford
CountryEngland
Postcode DistrictCM1
Source: Land Registry Price Paid Data
Licence: Open Government Licence

CM1 3NT Elevation

Elevation or altitude of CM1 3NT as distance above sea level:

MetresFeet
Elevation60m197ft

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.

Source: Open Postcode Elevation
Licence: Open Government Licence

Politics

WardWrittle
ConstituencySaffron Walden
Source: ONS Postcode Database
Licence: Open Government Licence

House Prices

Sales of detached houses in CM1 3NT

277A, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2025
30 MAY
£1,125,000
277, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2022
2 DEC
£1,050,000
277, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2022
2 DEC
£1,400,000
2017
18 APR
£490,000
2013
3 OCT
£410,000
RANGE COTTAGE, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2010
19 AUG
£325,000
259, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2010
12 JAN
£363,975
GROVE HOUSE, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2008
29 FEB
£400,000
RANGE COTTAGE, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2003
8 MAY
£239,995
277, ONGAR ROAD, WRITTLE, CHELMSFORD, CM1 3NT
2002
21 JUN
£452,000

➜ Writtle house prices

Source: HM Land Registry Price Paid Data
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 3NT

Ongar RoadOxney Green645m
Ongar RoadOxney Green688m
Chequers RoadOxney Green704m
Lodge RoadOxney Green705m
Purcell Cole (Ongar Road)Writtle1,077m

Nearest railway stations to CM1 3NT

Chelmsford Station4.6km
Source: NaPTAN
Licence: Open Government Licence

Broadband

Broadband access in CM1 3NT (2020 data)

Percentage of properties with Next Generation Access100.0%
Percentage of properties with Superfast Broadband87.5%
Percentage of properties with Ultrafast Broadband0.0%
Percentage of properties with Full Fibre Broadband0.0%

Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps

Broadband speed in CM1 3NT (2019 data)

Download

Median download speed15.1Mbps
Average download speed20.0Mbps
Maximum download speed48.97Mbps

Upload

Median upload speed1.2Mbps
Average upload speed3.5Mbps
Maximum upload speed9.76Mbps

Broadband limitations in CM1 3NT (2020 data)

Percentage of properties unable to receive 2Mbps0.0%
Percentage of properties unable to receive 5Mbps0.0%
Percentage of properties unable to receive 10Mbps8.3%
Percentage of properties unable to receive 30Mbps12.5%
Source: Ofcom
Licence: Ofcom Terms of Use (requires attribution)

CM1 3NT gas and electricity consumption

Estimated total energy consumption in CM1 3NT by fuel type, 2015.

Gas

Consumption (kWh)259,246
Meter count14
Mean (kWh/meter)18,518
Median (kWh/meter)14,868

Electricity

Consumption (kWh)194,222
Meter count30
Mean (kWh/meter)6,474
Median (kWh/meter)4,417
  • Consumption: The estimated total energy consumption, in kWh, across all meters in CM1 3NT, for 2015.
  • Meter count: The total number of meters in CM1 3NT.
  • Mean: The mean average consumption per meter, in kWh.
  • Median: The median average consumption per meter, in kWh.
Source: Postcode level gas estimates: 2015 (experimental)
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence

Deprivation

32.3% of English postcodes are less deprived than CM1 3NT:
Source: ONS Postcode Database
Licence: Open Government Licence

Food Standards Agency

Three nearest food hygiene ratings to CM1 3NT (metres)

The Potting Shed Tea Rooms Ltd
Food Hygiene Rating: 5 (Very Good)
Hanging Gardens Nurseries
46m
City Churros
Food Hygiene Rating: 5 (Very Good)
Caravan 1
533m
City Crepes
Food Hygiene Rating: 5 (Very Good)
Caravan 1
533m

➜ Get more ratings from the Food Standards Agency

Source: Food Standards Agency
Licence: FSA terms & conditions

Nearest post box to CM1 3NT

 Last Collection 
LocationMon-FriSatDistance
Long Brandocks16:5008:451,282m
Lodge Road16:4509:001,717m
Writtle P.o.17:3012:001,764m
Source: Dracos
Licence: Creative Commons Attribution-ShareAlike

CM1 3NT ITL and CM1 3NT 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 3NT:

ITL 1 CodeName
TLHEast
ITL 2 CodeName
TLH3Essex
ITL 3 CodeName
TLH36Heart of Essex
LAU 1 CodeName
E07000070Chelmsford
Source: ONS Postcode Directory
Licence: Open Government Licence

CM1 3NT 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 3NT:

CodeName
OAE00109892
LSOAE01021635Chelmsford 011E
MSOAE02004495Chelmsford 011
Source: ONS Postcode Directory
Licence: Open Government Licence

Nearest postcodes to CM1 3NT

CM1 3NZOngar Road327m
CM1 3PRCauseway Cottages450m
CM1 3PSHighwood Road477m
CM1 3PBVictoria Road533m
CM1 3PQGreat Godfreys552m
CM1 3NSOngar Road564m
CM1 3PWHighwood Road568m
CM1 3NJThe Shrubberies569m
CM1 3NWFosters Close571m
CM1 3NRTower Road588m
Source: Open Postcode Geo; Land Registry Price Paid Data
Licence: Open Government Licence
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  • 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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