Least deprived 30–40%
IMD England
High · 14.6 per 1k
Crime · Aug '26
£405,000
Median property price · Sep 2025–Aug 2026 · 2,031 sales
-1.2%
Last 12 full months vs the prior 12
East of England
Region
Deprivation Index (IMD)
IMD England — Index of Multiple Deprivation
Measures deprivation across income, employment, health, education, crime, housing, barriers to housing and services, and living environment.
20736
Rank out of 33,755 LSOAs in England
1 - Most deprived10 - Least deprived
Rank 20736 out of 33,755 lower layer super output areas in England. N/A for Wales, Scotland and Northern Ireland as this postcode is in England.
Property sales (Land Registry)
England & WalesProperty sales · CM1 1SF
HM Land Registry · Chelmsford
Average price
£448,760
Median price: £405,000
Median -1.2% vs prior 12 months
Standard sales only · Sep 2025–Aug 2026 · 2,031 sales
Property type filter
Recent sale price trend
Feb '25 – Aug '26Aug '26: 1 sales · avg £1,050,000
X axis: MonthY axis: Avg sold price (hover shows sales count)
£1.1m£964k£877k
Feb '25Aug '26
Contains HM Land Registry data © Crown copyright and database right. This data is licensed under the Open Government Licence v3.0.
Police Recorded Crime near CM1 1SF
England & WalesCrime trends · near CM1 1SF
Counts are for Marconi electoral ward, not a 1-mile police.uk street search around this postcode.
data.police.uk · YoY vs same month last year · per 1,000 residents (Census 2021)Sep '24 – Aug '26
Key categories · YoY
Violent Crime
40
YoY +48%
483317
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
18
YoY —
18101
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
4
YoY —
840
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
3
YoY —
630
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
3
YoY —
950
Sep '24Mar '25Sep '25Mar '26Aug '26
Other recorded crime
60
YoY +400%
60348
Sep '24Mar '25Sep '25Mar '26Aug '26
Demographics (LSOA 2021 context)
Ethnicity
White Brit.75.6%
Other White5.5%
Indian3.9%
African2.6%
Other Asian1.7%
+ 5 other groups · 10.7%
Religion
No religion44.8%
Christian41.0%
Not answered6.2%
Hindu3.6%
Muslim3.3%
+ other · 1.1%
Age groups
35–4922.7%
50–6419.9%
25–3413.5%
10–157.5%
65–746.9%
+ 6 other age groups · 29.5%
Households
Married or civil partnership couple: Dependent children22.3%
One person: other16.9%
One person: aged 66+10.7%
Married or civil partnership couple: No children9.9%
Married or civil partnership couple: All children non-dependent7.2%
+ 9 other households · 33.0%
Getting around
Straight-line distance from this postcode. Walking time is approximate.
Stations
- 594 m straight lineabout 7 min
Chelmsford Rail Station
Rail · west entrance
- 4.0 km straight lineabout 51 min
Beaulieu Park Rail Station
Rail · entrance
- 9.7 km straight lineabout 121 min
Hatfield Peverel Rail Station
Rail · entrance
Bus stops
- 107 m straight lineabout 1 min
Swiss Avenue
Bus · W-bound · west
- 127 m straight lineabout 2 min
Swiss Avenue
Bus · E-bound · east
- 142 m straight lineabout 2 min
Keene Home
Bus · o/s · south
- 197 m straight lineabout 2 min
King Edward VI School
Bus · o/s · north
- 207 m straight lineabout 3 min
Cockney Corner
Bus · NW-bound · north-west
Coordinates & Location for CM1 1SF
Postcode
CM1 1SF
Coordinates
51.7417, 0.4651
Grid reference
TL702076
Easting
570,294
Northing
207,649
Region
East of England
Plus Code
9F32PFR8+M3
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Chelmsford
Travel to Work
Chelmsford
ITL Region
Chelmsford
National Park
Non-National Park
Administrative Information
Chelmsford
Local Authority
Council AreaChelmsford E14001159
Constituency
E14001159Essex
Police Force
England
Ward
Marconi
Constituency code
E14001159
EU Electoral Region
Eastern
Parish
Chelmsford, unparished area
International Territorial Level
Chelmsford
Health & NHS
East of England
Health Authority
Serving Essex
NHS EnglandEast of England
Cancer Alliance
National
Health Authority
East of England
NHS Region
East of England
Integrated Care Board
NHS Essex Integrated Care Board
Primary Care Org
Mid Essex
Sub ICB Location
NHS Essex ICB - 06Q
Cancer Alliance
East of England
Statistical Areas
LSOA 2021
Super Output Area
Chelmsford 009A E01021573
E01021573MSOA 2021
Mid Super Output
Chelmsford 009 E02004493
E02004493LSOA 2011
Super Output Area
Chelmsford 009A E01021573
E01021573MSOA 2011
Mid Super Output
Chelmsford 009 E02004493
E02004493Urban: Nearer to a major town or city
Rural/Urban Classification 2021
2001 Classification
(England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 Classification
(England/Wales) Urban city and town C1
2021 Classification
Urban: Nearer to a major town or city UN1
Sun & Time Information
7:21 AM
Sunrise
6:05 PM
Sunset
10 hours 44 minutes of daylight today
Sunrise (today)
7:21 AM
Sunset (today)
6:05 PM
Daylight duration
10 hours 44 minutes
Time zone
GMT / BST (UTC +0 / +1)
Postcode History
January 1980
First Introduced
Active fromNot terminated
Usage Ended
Terminated~46 years
Active Duration
1980 -> PresentJanuary 1980 — Introduced
Postcode CM1 1SF introduced by Royal Mail.
2001 — Census Classification
2001 Rural/Urban Classification: (England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 — Reclassified
2011 Rural/Urban Classification: (England/Wales) Urban city and town C1.
2021 — Census Update
2021 Census classification: Urban: Nearer to a major town or city UN1. LSOA E01021573 and MSOA E02004493 assigned.
2025 — Indices of Deprivation
IMD England rank: 20736
Present — Active
Postcode CM1 1SF is currently active and in use.
First introduced
January 1980
Usage ended
Not terminated
Active duration
~46 years
Last updated
2026-08-01
Current status
Live
School applications
We've matched the postcode to Essex.
You apply through this education local authority even if the school is in another council area.
Chelmsford is the district council. School applications go through Essex.
Last published allocation
None of the schools listed here has a published last-distance figure, so we cannot compare a postcode with last year's allocation. We do not draw catchment maps in this list; where we hold a council's map, it is on the school's page.
Apply for a secondary placeAdmissions and composite prospectus guidanceApplication deadlines and offer daysHome education — find your councilHome education guidance
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Schools near CM1 1SF
Open state schools within 1.2 miles of this postcode, ranked by distance.
Secondary with sixth formStateMixed · Ages 11–18FSM 3%
Attainment 8
83.3
Secondary with sixth formStateGirls · Ages 11–18FSM 5%
Attainment 8
80.7
PrimaryStateMixed · Ages 4–11FSM 11%
RWM expected
74%
PrimaryStateMixed · Ages 4–11FSM 41%
RWM expected
58%
PrimaryStateMixed · Ages 4–11FSM 10%
RWM expected
74%
PrimaryStateMixed · Ages 5–11FSM 23%
RWM expected
73%
All-throughStateMixed · Ages 7–16FSM 20%
All-throughStateMixed · Ages 7–16
PrimaryStateMixed · Ages 3–11FSM 40%
RWM expected
66%
Secondary with sixth formStateMixed · Ages 11–18FSM 18%
Attainment 8
49.9
School performance data © Crown copyright. Source: Department for Education.
Spot a mistake on this page? Email [email protected] and we'll check it against the source.
Explore the full Chelmsford
See local data, transport links, deprivation trends and more for the broader area — all in one place.