CM3 1NN postcode in Great Leighs, Essex

CM3 1NN is a postcode in Great Leighs, in the Boreham and The Leighs ward of Chelmsford. It is in the North West Essex parliamentary constituency and the Essex police force area, and has been in use since January 1980.

Where CM3 1NN is, and what is near it

Map of CM3 1NN and what is near it Map of CM3 1NN: its centre point, with the 214 other postcodes in the CM3 1 sector, 4 schools (3 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows), 3 GP practices (3 beyond the edge, shown by arrows) and 6 bus stops (3 beyond the edge, shown by arrows), over roads, rivers and built-up areas. North is up; the scale bar is 100 m. A131 CM3 1FQ: also in CM3 1CM3 1GS: also in CM3 1CM3 1GT: also in CM3 1CM3 1GU: also in CM3 1CM3 1GX: also in CM3 1CM3 1GY: also in CM3 1CM3 1GZ: also in CM3 1CM3 1JH: also in CM3 1CM3 1JJ: also in CM3 1CM3 1JL: also in CM3 1CM3 1NL: also in CM3 1CM3 1NP: also in CM3 1CM3 1NU: also in CM3 1CM3 1NW: also in CM3 1CM3 1NX: also in CM3 1CM3 1NY: also in CM3 1CM3 1NZ: also in CM3 1CM3 1QS: also in CM3 1CM3 1RP: also in CM3 1CM3 1RR: also in CM3 1CM3 1RS: also in CM3 1CM3 1RU: also in CM3 1 3 places, 350 m–6.0 km3 places, 350 m–5.0 kmCressing station 5.5 kmFelsted School 5.9 kmBroomfield and The Walthams CM3 1NN Map of CM3 1NN and what is near it Map of CM3 1NN: its centre point, with the 214 other postcodes in the CM3 1 sector, 4 schools (3 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows), 3 GP practices (3 beyond the edge, shown by arrows) and 6 bus stops (3 beyond the edge, shown by arrows), over roads, rivers and built-up areas. North is up; the scale bar is 200 m. 3 places, 350 m–6.0 km3 places, 350 m–5.0 kmBroomfield and The Walthams CM3 1NN
  • CM3 1NN
  • Other postcodes in CM3 1: press one for its page
  • 4 schools
  • 2 railway stations
  • 3 GP practices
  • 6 bus stops
  • Further out, with the distance

Points are centre points, not buildings, and nothing drawn is a boundary. Names in italics are council wards: we hold no town or village names here. Open this area on OpenStreetMap (latitude 51.8289, longitude 0.5075)

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026; schools: Department for Education; stations and bus stops: Department for Transport; GP practices: NHS England; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026; street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Who looks after CM3 1NN?

ONS places a whole postcode in one council, one ward and one constituency, from a single point. A few postcodes cross a boundary, so an address at the edge can belong to the one next door. Your council tax bill or your poll card settles it for your address.

Council, police force area and constituency: ONS Postcode Directory, August 2026. What each council does: GOV.UK. The MP: UK Parliament, read 14 October 2026.

What broadband can you get at CM3 1NN?

Every home and business at CM3 1NN can get superfast broadband (30 Mbit/s or more) from a line, and 68% can get gigabit, Ofcom says.

Gigabit (1,000 Mbit/s)68% can get it

Chelmsford: 88%

Superfast (30 Mbit/s or more)100% can get it

Chelmsford: 98%

The line marks the figure across Chelmsford.

Check one address, and mobile coverage, on Ofcom's checker Compare broadband at another postcode

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

When are the bins collected at CM3 1NN?

BinDayBuddy does not read Chelmsford City Council's collection days yet, so the council's own checker is the place to look.

Chelmsford City Council's bin days

Source: BinDayBuddy, built from councils' own collection systems and public data. BinDayBuddy is run by Towpath Digital, which also runs this site. How we use it

Is CM3 1NN at risk of flooding?

From rivers and the sea, long term

The Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea does not include CM3 1NN.

Rivers and the sea only, for the land around buildings, not each building. GOV.UK's checker answers for one address, surface water included.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0.

From surface water, across Chelmsford

The Environment Agency publishes this for the whole council, not for CM3 1NN: 2,321 properties in Chelmsford are at high risk (2.4% of all its properties). All the figures for Chelmsford

Source: Environment Agency, Risk of Flooding from Surface Water, properties at risk by local authority, version 2025-09, listed 18 September 2026, Open Government Licence v3.0.

Flood warnings

The centre of CM3 1NN is not in any of the Environment Agency's flood warning or alert areas. Part of the postcode may still be, so check your own address when you sign up.

Sign up for flood warnings, free, on GOV.UK Check flood risk at another postcode

Source: Environment Agency, flood warning areas read 17 October 2026. Open Government Licence v3.0. How we use these

What do homes sell for near CM3 1NN?

Homes in CM3 1 sold for a typical £480,000 in the 12 months to August 2026, across 52 sales, down 7% on the 12 months before, HM Land Registry's figures show.

£480,000 typical price, the 12 months to August 2026
£516,250 12 months to August 2025
▼ down 7% on the 12 months before
  • Detached £603,250 26 sales
  • Semi-detached £470,000 15 sales
  • Terraced £377,500 8 sales
  • Flat or maisonette Not enough sales to price (3)

Each bar is that kind's typical price, against the most expensive kind here.

Across the whole CM3 district: a typical £442,000 from 655 sales.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Homes sold in CM3 1NN

HM Land Registry records 2 standard sales of homes in CM3 1NN from January 2024 to August 2026, the latest on 30 June 2026. Each sale below opens Land Registry's own record of it.

Sales at market value to a private buyer; the latest months are not complete. Own or live in a home listed here and would rather it were not? Ask us to take it off.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Food hygiene ratings at CM3 1NN

The Food Standards Agency lists one food business at CM3 1NN. Each opens the agency's own page for it, with what the council's inspector found.

Ratings run from 5, very good, to 0, urgent improvement necessary. A rating comes from the business's last inspection, and can change at the next.

Food hygiene ratings, from the Food Standards Agency

Source: Food Standards Agency, food hygiene ratings as published on 22 October 2026. Open Government Licence v3.0. How we use it

What council tax band are homes near CM3 1NN?

The Valuation Office Agency counts about 1,180 homes in the neighbourhood around CM3 1NN. The largest share of them, 23%, are in council tax band E. More were built from 2000 to 2009 than in any other period (35%). A home's own band is set for that home: check it on GOV.UK.

Council tax bands, and a year's council tax

Council tax bands of the homes around CM3 1NN

Band D in Chelmsford for 2026‑27: £2,300. For the bands the homes here are in, a year's council tax runs from £1,533 (band A) to £4,600 (band H); band E, the most common, is £2,811.

BandHomes around hereA year
Band Aabout 50 (4%)£1,533
Band Babout 120 (10%)£1,789
Band Cabout 250 (21%)£2,045
Band Dabout 230 (19%)£2,300
Band Eabout 270 (23%)£2,811
Band Fabout 160 (14%)£3,322
Band Gabout 90 (8%)£3,834
Band Habout 10 (1%)£4,600

When the homes were built

  1. 11% Before 1900
  2. 3% 1900 to 1918
  3. 6% 1919 to 1939
  4. 6% 1945 to 1964
  5. 21% 1965 to 1982
  6. 7% 1983 to 1999
  7. 35% 2000 to 2009
  8. 6% 2010 to 2019
  9. 5% 2020 or later

Averages for Chelmsford before discounts, not any one home's bill.

Council tax: Ministry of Housing, Communities and Local Government, Council Tax levels set by local authorities in England 2026 to 2027, Table 10, published 25 March 2026, Open Government Licence v3.0. How we use it

Counts for the neighbourhood the centre of CM3 1NN is in (ONS area E01021538), rounded by the VOA.

Check one home's band on GOV.UK

Source: Valuation Office Agency, Council Tax: stock of properties, at 31 March 2026, Open Government Licence v3.0. How we use it

Which schools are near CM3 1NN?

The nearest open schools to CM3 1NN, in a straight line. Distance is not a catchment.

Find and compare schools in England, on GOV.UK More schools near CM3 1NN, and how we find them

Source: Department for Education, Get Information about Schools, read 17 October 2026, Open Government Licence v3.0. Each school opens its own record there. How we use it

Where is the nearest station to CM3 1NN?

The nearest railway station to the centre of CM3 1NN is Cressing Rail Station, 5.5 km away in a straight line.

  • Cressing Rail Station Railway station 5.5 kmDrive
  • Braintree Freeport Rail Station Railway station 6.1 kmDrive

Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.

6 bus stops within 400 metres, the nearest Main Road, 45 m away.

More stations near CM3 1NN, and how we find them

Source: Department for Transport, NaPTAN, read 17 October 2026, Open Government Licence v3.0. How we use it

Which GP surgeries are near CM3 1NN?

The nearest GP practices to the centre of CM3 1NN, in a straight line. Each sets the area it takes patients from. In England, each opens its page at the Care Quality Commission, which inspects and rates it.

Find a GP on the NHS website

Source: NHS England, Organisation Data Service (GP practices), read 17 October 2026; ratings: Care Quality Commission, 1 October 2026, Open Government Licence v3.0. How we use it

Where can I charge an electric car near CM3 1NN?

0 within 1 km 2 within 3 km

The nearest charging points to the centre of CM3 1NN, as OpenStreetMap had them on 20 October 2026:

  • Gridserve Braintree Electric Forecourt Charging point · 36 chargers · Type 2, CCS, CHAdeMO · up to 90 kW 2.8 kmCycle
  • Braintree Supercharger Charging point · 6 chargers · CCS · up to 250 kW 2.8 kmCycle

OpenStreetMap is mapped by volunteers. It does not have every charger, and not every one it has gives its speed or plugs. Check a charger's own app before you set off.

See more chargers on Open Charge Map

Source: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it

Which dentists are near CM3 1NN?

The nearest to the centre of CM3 1NN, in a straight line. Those in England open their page at the Care Quality Commission, which inspects them. It gives few dentists a rating.

Source: Care Quality Commission (directory of 14 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which hospitals are nearest to CM3 1NN?

The nearest NHS and private hospitals and clinics in England, in a straight line, with the Care Quality Commission's latest overall rating. One in Wales or Scotland may be nearer.

Not every hospital has an accident and emergency department. In an emergency, call 999.

Source: Care Quality Commission (directory of 14 October 2026, ratings of 1 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which care homes are near CM3 1NN?

The nearest care homes to the centre of CM3 1NN, in a straight line, with the Care Quality Commission's latest overall rating.

Source: Care Quality Commission (directory of 14 October 2026, ratings of 1 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which pharmacies are near CM3 1NN?

The nearest NHS pharmacies to the centre of CM3 1NN, in a straight line. Those in England show the opening hours they gave the NHS (list published July 2026) and open their page on the NHS website. A few work online or by post only: check before you go.

Hours can change on bank holidays. For urgent help when a pharmacy is closed, call NHS 111.

Source: NHS Business Services Authority (phone numbers: NHS Organisation Data Service), Open Government Licence v3.0. How we use it

Which vets are near CM3 1NN?

The nearest vets to the centre of CM3 1NN on OpenStreetMap, in a straight line. Each opens its entry on the map, with its opening hours and website where they are mapped.

OpenStreetMap may not have every vet. Out of hours, ring your own vet’s number first: the Royal College of Veterinary Surgeons says vets in practice must arrange round-the-clock emergency first aid and pain relief, themselves or through another service.

Source: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it

Is CM3 1NN in a conservation area?

The centre of CM3 1NN is not in any conservation area, listed building, tree preservation area, green belt or protected landscape that planning.data.gov.uk holds. Not every council has sent all its data, so check with the council before relying on it.

Source: planning.data.gov.uk, asked at the postcode's centre point. Open Government Licence v3.0. How we use it

How much crime is there near CM3 1NN?

Police.uk records 17 crimes and reports of anti-social behaviour within a mile of the centre of CM3 1NN in August 2026, the latest month it has published.

Anti-social behaviour6 reports
Violence and sexual offences3 reports
Vehicle crime3 reports
Public order2 reports
Criminal damage and arson2 reports
Drugs1 report

Police.uk places each report at a nearby point, so this is an area, not a street.

Your local policing team on Police.uk How we work this out: crime by postcode, with the last 12 months

Source: data.police.uk, from its download of 30 September 2026, Open Government Licence v3.0. How we use it

The official record for CM3 1NN

Ward
Boreham and The Leighs
Parish
Great and Little Leighs
Region
East of England
Country
England
Built-up area
Great Leighs
In use since
January 1980

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Around CM3 1NN

Nearby postcodes

The nearest postcodes in use, measured in a straight line between centre points.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode. How we use it

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