Chelmsford
Chelmsford is covered by postcode districts CM1, CM2, CM3, CM98 and CM99. It is in the Chelmsford council area, Essex.
Every postcode in Chelmsford, and which are new since 2020
- New since 2020: 154
- In use before 2020: 2,230
- Outline: where 5 or more new postcodes since 2020 lie together
Of the 2,384 postcodes in Chelmsford that ONS places, 154 are new since 2020 and 2,230 were in use before 2020.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 160 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
The middle of its postcodes: latitude 51.7364, longitude 0.4805. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
The 5 newest postcodes
Where the new postcodes lie together
- 61 new postcodes since 2020, outlined on the map. CM1 9FX, is the newest of them.
- 13 new postcodes since 2020, outlined on the map. CM2 6QU, is the newest of them.
- 12 new postcodes since 2020, outlined on the map. CM1 6LE, is the newest of them.
- 8 new postcodes since 2020, outlined on the map. CM1 4FZ, is the newest of them.
- 5 new postcodes since 2020, outlined on the map. CM1 1UQ, is the newest of them.
- 5 new postcodes since 2020, outlined on the map. CM1 6EN, is the newest of them.
What is it like to live in Chelmsford?
Homes sold for a typical £380,000 in the 12 months to September 2026. At 1,823 of the 2,168 postcodes Ofcom reports on, every home and business can get gigabit broadband. The Environment Agency counts 1,727 homes and businesses at high or medium risk of flooding from rivers or the sea, at 204 of its 2,384 postcodes. It has 29 primary schools, 9 secondary schools and 2 all-through schools at its postcodes within 12 km of its centre. At least 5 GP practices are at its postcodes. The nearest railway station is Chelmsford, 800 metres from the middle of its postcodes in a straight line.
We don't rate places; here are the figures so you can judge.
Sources: HM Land Registry Price Paid Data; Ofcom Connected Nations; Environment Agency flood risk; Get Information about Schools; NHS GP practices; NaPTAN. Each figure is from a section of this page, which gives its date.
What do homes cost in Chelmsford?
Homes in Chelmsford sold for a typical £380,000 in the 12 months to September 2026, across 1,307 sales, HM Land Registry's figures show. The 12 months before gave £382,000 from 1,681 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £555,000 263 sales
- Semi-detached £427,750 368 sales
- Terraced £360,000 339 sales
- Flat or maisonette £223,000 337 sales
Each bar is that kind's typical price, against the most expensive kind here.
Across the whole CM1 district, Chelmsford's main postcode district: a typical £396,000.
Sales at the postcodes ONS places in Chelmsford: standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.
Source: HM Land Registry Price Paid Data, files dated 28 October 2026.
Are new homes being built in Chelmsford?
154 of the 2,384 postcodes now in use in Chelmsford came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 49 of the 1,681 homes sold in Chelmsford were newly built (3%), HM Land Registry's records show; across the CM1 district, 14%.
The newest postcodes
A new postcode is often a new street or estate, but Royal Mail also makes new postcodes when it reorganises old ones, so not every one means new homes. Only postcodes still in use are counted.
New homes among the homes sold
| Period | In Chelmsford | Across the CM1 district |
|---|---|---|
| The 12 months to September 2026 | 8 of 1,307 (Under 1%) | 18 of 737 (2%) |
| The 12 months to September 2025 | 49 of 1,681 (3%) | 157 of 1,106 (14%) |
Standard sales of homes at market value that HM Land Registry marks as newly built. New homes take longer to be registered than other sales, so the latest 12 months count fewer of them than were sold. A share is given from 5 sales or more.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; HM Land Registry Price Paid Data, files dated 28 October 2026.
What broadband can you get in Chelmsford?
Ofcom reports on 2,168 of the 2,384 postcodes in Chelmsford. At 1,823 of them every home and business can get gigabit broadband.
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
Is Chelmsford at risk of flooding?
204 of the 2,384 postcodes in Chelmsford have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 1,727 homes and businesses in an area at high or medium risk.
High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.
Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.
Source: Environment Agency flood risk, published 6 July 2026.
Which schools are in Chelmsford?
The open schools at the postcodes in Chelmsford (the first 8 primaries by distance from its middle). A school for ages 4 to 18 is listed under both. Distances are straight lines from the middle of its postcodes. Distance is not a catchment: each council sets its own admission rules. Special schools and alternative provision, which children join by referral, are not listed.
Primary
- The Cathedral Church of England Voluntary Aided Primary School, Chelmsford300 m 314 pupils, 315 places
- Trinity Road Primary School350 m 387 pupils, 420 places
- Our Lady Immaculate Catholic Primary School1.1 km 216 pupils, 218 places
- The Tyrrells School1.3 km 420 pupils, 420 places
- St Anne's School1.3 km 107 pupils, 165 places
- Maltese Road Primary School1.4 km 211 pupils, 210 places
- Oaklands Infant School1.5 km 168 pupils, 180 places
- Perryfields Infant School1.6 km 180 pupils, 180 places
An orange bar: the school has as many pupils as places, or more (Department for Education's figures).
Find and compare schools in England, on GOV.UKSource: Get Information about Schools, read 17 October 2026. Each school opens its own record there.
How far is the station from Chelmsford?
The nearest railway station to the centre point of the postcodes in Chelmsford is Chelmsford Rail Station, 800 m away in a straight line.
- Chelmsford Rail Station Railway station 800 mWalk
- Beaulieu Park Railway station 3.6 kmCycle
- Hatfield Peverel Rail Station Railway station 9.1 kmDrive
Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.
Straight-line distances from the middle of the postcodes, not routes. Each postcode page lists its own nearest stations and bus stops. The Department for Transport's register does not say how often services run.
Source: NaPTAN, read 17 October 2026.
Which GP surgeries are in Chelmsford?
The GP practices at the postcodes in Chelmsford, the first 5 by distance from its middle. Each practice sets the area it takes patients from, so check with it before registering.
- Rivermead Gate Med.ctr. Care Quality Commission rating: Good CQC report June 2017, over 3 years old · Phone 01245 348688 700 mWalk
- Beauchamp House Care Quality Commission rating: Good CQC report March 2017, over 3 years old · Phone 01245 262255 750 mWalk
- Sutherland Lodge Surgery Care Quality Commission rating: Good CQC report December 2019, over 3 years old · Phone 01245 351351 1.2 kmWalk
- Chelmer Village Surgery Care Quality Commission rating: Good CQC report October 2022, over 3 years old · Phone 01245 467759 1.7 kmCycle
- Whitley House Surgery Care Quality Commission rating: Good CQC report May 2016, over 3 years old · Phone 01245 347539 2.0 kmCycle
Sources: NHS GP practices, read 17 October 2026; Care Quality Commission, ratings of 1 October 2026.
Is Chelmsford safe? Crime recorded around it
Police.uk records 6,412 crimes and reports of anti-social behaviour within a mile of the middle of the postcodes in Chelmsford over the 12 months from September 2025 to August 2026. August 2026 is the latest month it has published. These are counts, not a rate: we hold no count of the people who live, work or pass through, so we do not say whether a place is safe.
Each month, September 2025 to August 2026
- 508 September 2025
- 516 October 2025
- 476 November 2025
- 494 December 2025
- 475 January 2026
- 463 February 2026
- 572 March 2026
- 554 April 2026
- 548 May 2026
- 579 June 2026
- 640 July 2026
- 587 August 2026
By kind, over the 12 months
Also: vehicle crime 123, burglary 119, bicycle theft 83, possession of weapons 79, theft from the person 78, robbery 77.
Police.uk says its locations "always represent the approximate location of a crime". Each crime is moved to the nearest of a fixed list of map points, each over a street centre, a public place or a commercial premises, chosen so that every point covers at least eight addresses or none. A mile is a wide circle: in a town it takes in the centre and its shops, where much crime is recorded.
Crime around one postcodeSource: police.uk, data to August 2026, from its download of 30 September 2026.
Who runs Chelmsford?
- District, borough or city council
- Chelmsford
- County council
- Essex
- Parliamentary constituencies
- Chelmsford (2,253), North West Essex (114) and Maldon (17)
- Police force area
- Essex
- Region
- East of England
- Country
- England
Where the place crosses a boundary, a row lists each side with its number of postcodes. Check a postcode for its own. What council am I in?
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
Moving to Chelmsford
Who to tell and what to sort out in your first week.
- Tell Chelmsford about council tax Council tax, on chelmsford.gov.uk
- Register to vote at the new address Register to vote on GOV.UK
- Register with a GP practice The GP practices in Chelmsford
- Take meter readings on the day you move in
- Power cut? Call 105. It is free. About 105, the power cut number
- Find out your bin day Find your rubbish collection day on GOV.UK
Chelmsford postcodes
2,384 postcodes in use in Chelmsford, by district:
Those districts are all in the CM postcode area.
Check a Chelmsford postcode
Enter a full postcode to see its ward, its flood risk, house prices in its sector and its nearest schools.
Do not know the postcode? What is my postcode?
Places near Chelmsford
With the typical price of a home in each, to set beside Chelmsford's £380,000. Distances are straight lines between the middles of each place's postcodes.
Quick answers about Chelmsford
- What is the postcode for Chelmsford?
- Postcode districts CM1, CM2, CM3, CM98 and CM99, with 2,384 postcodes in use. Source: ONS.
- Which council is Chelmsford in?
- Chelmsford, with Essex as its county council. Source: ONS.
- How much are houses in Chelmsford?
- A typical £380,000 in the 12 months to September 2026, from 1,307 sales. Source: HM Land Registry.
- What schools are in Chelmsford?
- Primary schools at its postcodes include The Cathedral Church of England Voluntary Aided Primary School, Chelmsford, Trinity Road Primary School and Our Lady Immaculate Catholic Primary School; secondary schools at its postcodes include Chelmsford Hospital School, King Edward VI Grammar School, Chelmsford and Chelmsford County High School for Girls. Source: Department for Education.
- Does Chelmsford have a railway station?
- Yes: Chelmsford station, 800 metres from the middle of its postcodes in a straight line. Source: Department for Transport.
- What broadband can you get in Chelmsford?
- Ofcom reports on 2,168 of the 2,384 postcodes in Chelmsford. At 1,823 of them every home and business can get gigabit broadband. Source: Ofcom.
- Is Chelmsford at risk of flooding?
- 204 of the 2,384 postcodes in Chelmsford have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 1,727 homes and businesses in an area at high or medium risk. River and sea risk for the land, not surface water. Source: Environment Agency.
- Are new homes being built in Chelmsford?
- 154 of the 2,384 postcodes now in use in Chelmsford came into use in January 2020 or later, ONS says. In the 12 months to September 2025, 49 of the 1,681 homes sold in Chelmsford were newly built (3%), HM Land Registry's records show; across the CM1 district, 14%. Source: ONS and HM Land Registry.
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- HM Land Registry Price Paid Data
- Ofcom Connected Nations
- Environment Agency flood risk
- Department for Education: Get Information about Schools
- Department for Transport: NaPTAN
- NHS England: NHS GP practices
- Care Quality Commission
- data.police.uk: police.uk
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Contains public sector information licensed under the Open Government Licence v3.0. This uses Care Quality Commission information.
Licence: Open Government Licence v3.0.
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