Property market
The five-year median is £285,000 from 11 recorded sales in CM3 1SG. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Chelmsford is £383,103 in June 2026, down 1.2% year on year.
CM3 1SG
Boreham and The Leighs · Chelmsford · England
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Chelmsford
- Local authority
- Chelmsford
- Constituency
- North West Essex
- Postcode district
- CM3
- Postcode sector
- CM3 1
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- CM3 1SG
- Status
- Current
- Introduced
- 1 November 2005
- Terminated
- Not published
- Postcode area
- CM
- Postcode district
- CM3
- Postcode sector
- CM3 1
- Latitude
- 51.831568
- Longitude
- 0.508204
- British National Grid easting
- 572,922
- British National Grid northing
- 217,746
Statistical and administrative geographies
- Country
- England · E92000001
- Region
- East of England · E12000006
- Local authority district
- Chelmsford · E07000070
- Electoral ward
- Boreham and The Leighs · E05004097
- Parish or community
- E04003958
- Westminster constituency
- North West Essex · E14001402
- Output area
- E00180556
- Lower layer super output area
- Chelmsford 001A · E01021538
- Middle layer super output area
- Chelmsford 001 · E02004485
Postcode source versions
- Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
- Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
- Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence
Explore CM3
Property
119 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 67, Shimbrooks, Great Leighs, Chelmsford, CM3 1SG | 1 June 2026 | £363,000 |
| 133, Shimbrooks, Great Leighs, Chelmsford, CM3 1SG | 22 December 2025 | £225,000 |
| 89, Shimbrooks, Great Leighs, Chelmsford, CM3 1SG | 22 May 2025 | £210,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 6
- Primary
- 5
- Secondary
- 1
- 454 m
Great Leighs Primary School
Community school
- 3.3 km
White Court School
Community school
- 4.0 km
Notley Green Primary School
Academy converter
Recorded crime
Within 1 mile of this postcode
- Published events
- 148
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 68
- Anti social behaviour 20
- Vehicle crime 14
- Criminal damage and arson 10
- Burglary 8
Census 2021
Population and age profile
- Postcode residents
- 168
- Postcode households
- 65
- Residents per household
- 2.6
- CM3 1 residents
- 5,890
92 female, 76 male
Age bands in CM3 1
Wider postcode sector- Age 0 to 14
- 18.7%
- Age 15 to 24
- 10.6%
- Age 25 to 44
- 21.9%
- Age 45 to 64
- 29.2%
- Age 65 and over
- 19.6%
1,133 residents
639 residents
1,328 residents
1,769 residents
1,186 residents
This postcode contained 2.9% of the sector's usual residents on Census Day. The age profile describes the wider CM3 1 sector, not people in this individual postcode.
Small counts are adjusted for privacy, so totals can differ slightly between Census tables.
Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.
Fixed broadband coverage
Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.
- Superfast, 30 Mbit/s+
- 100%
- Ultrafast, 100 Mbit/s+
- 73.1%
- Ultrafast, 300 Mbit/s+
- 73.1%
- Gigabit-capable
- 73.1%
- Unable to receive decent fixed or FWA broadband
- 0%
- Next Generation Access
- 100%
- Decent broadband available from fixed wireless
- 0%
Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.
Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
Nearby transport
- 0.1 miles
Shimbrooks
BCT · Great Leighs
- 0.1 miles
Main Road
BCT · Great Leighs
- 0.2 miles
Main Road
BCT · Great Leighs
- 0.3 miles
Dog & Partridge
BCT · Great Leighs
- 0.3 miles
Aragon Road
BCT · Great Leighs
Relative deprivation
English Indices of Deprivation 2025 for Chelmsford 001A, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.
Overall IMD decile
6 of 10
Overall England rank
19,527 of 33,755
- Income
- 7 of 10
- Employment
- 7 of 10
- Education and skills
- 7 of 10
- Health and disability
- 9 of 10
- Crime
- 5 of 10
- Housing and services
- 1 of 10
- Living environment
- 4 of 10
These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.
Flood risk
Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.
- High risk addresses
- 0
- Medium risk addresses
- 0
- Low risk addresses
- 8
- Groundwater flood alert area
- Unlikely
Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.
Evidence in context
Schools
6 open schools are in scope, including 5 primary and 1 secondary schools. Great Leighs Primary School is the nearest published school at 454 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
148 published events cover 12 months, averaging 12.333 events per published month. The largest recorded category is Violence and sexual offences with 68 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.