CM3 1AN postcode in Great Waltham, Essex

CM3 1AN is a postcode in Great Waltham, in the Broomfield and The Walthams 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.

Flooding Not on the at-risk list The Environment Agency lists no home or business here in an area at risk from rivers or the sea Gigabit broadband 100% of homes and businesses can get it. Chelmsford: 88% Typical price £480,000 Homes sold in CM3 1, last 12 months. ▼ 7% on the year before Nearest station Beaulieu Park 5.6 km in a straight line

Where CM3 1AN is, and what is near it

Map of CM3 1AN and what is near it Map of CM3 1AN: its centre point, with the 214 other postcodes in the CM3 1 sector, 4 schools (2 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows), 3 GP practices (2 beyond the edge, shown by arrows) and 5 bus stops. North is up; the scale bar is 500 m. CM3 1AB: also in CM3 1CM3 1AE: also in CM3 1CM3 1AF: also in CM3 1CM3 1AG: also in CM3 1CM3 1AH: also in CM3 1CM3 1AJ: also in CM3 1CM3 1AL: also in CM3 1CM3 1AP: also in CM3 1CM3 1AQ: also in CM3 1CM3 1AR: also in CM3 1CM3 1AS: also in CM3 1CM3 1AT: also in CM3 1CM3 1AU: also in CM3 1CM3 1AW: also in CM3 1CM3 1BZ: also in CM3 1CM3 1DA: also in CM3 1CM3 1DB: also in CM3 1CM3 1DD: also in CM3 1CM3 1DE: also in CM3 1CM3 1DF: also in CM3 1CM3 1DG: also in CM3 1CM3 1DH: also in CM3 1CM3 1DJ: also in CM3 1CM3 1DP: also in CM3 1CM3 1DQ: also in CM3 1CM3 1ED: also in CM3 1CM3 1EE: also in CM3 1CM3 1EF: also in CM3 1CM3 1EL: also in CM3 1CM3 1EN: also in CM3 1CM3 1EP: also in CM3 1CM3 1ER: also in CM3 1CM3 1ES: also in CM3 1CM3 1ET: also in CM3 1CM3 1EU: also in CM3 1CM3 1EW: also in CM3 1CM3 1EX: also in CM3 1CM3 1FD: also in CM3 1CM3 1FT: also in CM3 1CM3 1RA: also in CM3 1CM3 1RB: also in CM3 1 2 places, 2.4–5.6 kmGP 4.8 kmBroomfield and The Walthams CM3 1AN Map of CM3 1AN and what is near it Map of CM3 1AN: its centre point, with the 214 other postcodes in the CM3 1 sector, 4 schools (2 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows), 3 GP practices (2 beyond the edge, shown by arrows) and 5 bus stops. North is up; the scale bar is 500 m. 3 places, 2.4–6.3 kmBroomfield and The Walthams CM3 1AN
  • CM3 1AN
  • Other postcodes in CM3 1: press one for its page
  • 4 schools
  • 2 railway stations
  • 3 GP practices
  • 5 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 51.7926, longitude 0.4587)

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; street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Who looks after CM3 1AN?

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 1AN?

Every home and business at CM3 1AN can get gigabit broadband from a line, Ofcom says.

Gigabit (1,000 Mbit/s)100% 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 1AN?

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 1AN 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 1AN.

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 1AN: 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 1AN 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 1AN?

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 3 sales, too few to price

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 1AN

HM Land Registry records one standard sale of homes in CM3 1AN from January 2024 to August 2026, the latest on 4 July 2025. 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

What council tax band are homes near CM3 1AN?

The Valuation Office Agency counts about 1,130 homes in the neighbourhood around CM3 1AN. The largest share of them, 25%, are in council tax band C. More were built in 2020 or later than in any other period (24%). 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 1AN

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 C, the most common, is £2,045.

BandHomes around hereA year
Band Aabout 50 (4%)£1,533
Band Babout 80 (7%)£1,789
Band Cabout 280 (25%)£2,045
Band Dabout 230 (20%)£2,300
Band Eabout 190 (17%)£2,811
Band Fabout 140 (12%)£3,322
Band Gabout 150 (13%)£3,834
Band Habout 10 (1%)£4,600

When the homes were built

  1. 17% Before 1900
  2. 5% 1900 to 1918
  3. 5% 1919 to 1939
  4. 6% 1945 to 1964
  5. 18% 1965 to 1982
  6. 4% 1983 to 1999
  7. 2% 2000 to 2009
  8. 18% 2010 to 2019
  9. 24% 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 1AN is in (ONS area E01021540), 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 1AN?

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

Primary

Secondary

Find and compare schools in England, on GOV.UK More schools near CM3 1AN, 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 1AN?

The nearest railway station to the centre of CM3 1AN is Beaulieu Park, 5.6 km away in a straight line.

  • Beaulieu Park Railway station 5.6 kmDrive
  • Chelmsford Rail Station Railway station 6.3 kmDrive

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

5 bus stops within 400 metres, the nearest Memorial, 139 m away.

More stations near CM3 1AN, 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 1AN?

The nearest GP practices to the centre of CM3 1AN, 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 1AN?

0 within 1 km 2 within 3 km

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

  • EB Charging Ltd Charging point · 2 chargers · Type 2 · up to 6.9 kW 2.6 kmCycle
  • EB Charging Ltd Charging point · 2 chargers · Type 2 · up to 6.9 kW 2.6 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 1AN?

The nearest to the centre of CM3 1AN, 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 1AN?

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 1AN?

The nearest care homes to the centre of CM3 1AN, 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 1AN?

The nearest NHS pharmacies to the centre of CM3 1AN, 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 1AN?

The nearest vets to the centre of CM3 1AN 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 1AN in a conservation area?

The centre of CM3 1AN 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 1AN?

Police.uk records 11 crimes and reports of anti-social behaviour within a mile of the centre of CM3 1AN in August 2026, the latest month it has published.

Violence and sexual offences6 reports
Anti-social behaviour1 report
Burglary1 report
Vehicle crime1 report
Other theft1 report
Other crime1 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 1AN

Ward
Broomfield and The Walthams
Parish
Great Waltham
Region
East of England
Country
England
Built-up area
Great Waltham
Rural or urban
Smaller rural, nearer to a major town or city
In use since
January 1980

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

Where to check what we do not hold

Around CM3 1AN

Go wider

Every postcode in the same sector, district or postcode area.

CM3 1 sector CM3 district CM postcode area

Questions about a postcode

Nearby postcodes

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

CM3 1DA40 mCM3 1RA80 mCM3 1AJ90 mCM3 1AP120 mCM3 1RB120 mCM3 1DB130 m
All of CM3

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

Check another postcode

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