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CM20 3LZ

POSTCODE

CM20 3LZ is a postcode in Netteswell.

Small user postcodeQuality indicator 1 (highest positional precision)Updated 2026-08-01
Coordinates
51.7711, 0.1131
OS grid TL458101 (545,899, 210,157)
IMD England
4/10
#11181
Crime · Aug '26
Around average · 10.4 per 1k
MoM -18% vs Jul '26
Plus Code
9F32Q4C7+C7
Most deprived 30⁠–⁠40%
IMD England
Around average · 10.4 per 1k
Crime · Aug '26
£340,000
Median property price · Sep 2025⁠–⁠Aug 2026 · 860 sales
+1.8%
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.
11181
Rank out of 33,755 LSOAs in England
1 - Most deprived10 - Least deprived
Rank 11181 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 & Wales
Property sales · CM20 3LZ
HM Land Registry · Harlow
Average price
£354,211
Median price: £340,000
Median +1.8% vs prior 12 months
Standard sales only · Sep 2025–Aug 2026 · 860 sales
View district CM20
Property type filter
Recent sale price trend
Not enough monthly sales for chart with current filter.
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 CM20 3LZ

England & Wales
Crime trends · near CM20 3LZ

Counts are for Netteswell 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
28
YoY +12%
533415
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
13
YoY —
1382
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
7
YoY —
951
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
4
YoY —
840
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
4
YoY —
1271
Sep '24Mar '25Sep '25Mar '26Aug '26
Other recorded crime
28
YoY +47%
352514
Sep '24Mar '25Sep '25Mar '26Aug '26

0 of 6 key categories improving · other recorded crime rising

84
incidents · Aug '26

Demographics (LSOA 2021 context)

Ethnicity

Total residents: 1,658
White Brit.74.1%
Other White9.2%
Bangladeshi2.2%
Pakistani2.2%
African2.2%
+ 5 other groups · 10.2%

Religion

Total residents: 1,658
No religion44.2%
Christian43.7%
Muslim5.2%
Not answered5.1%
Other religion1.1%
+ other · 0.7%

Age groups

Total residents: 1,659
50–6420.7%
35–4920.1%
25–3413.6%
10–157.3%
65–747.2%
+ 6 other age groups · 31.1%

Households

Total households: 670
One person: other17.2%
Married or civil partnership couple: Dependent children14.0%
One person: aged 66+13.1%
Lone parent family: With dependent children9.4%
Married or civil partnership couple: No children7.6%
+ 9 other households · 38.7%

Getting around

Straight-line distance from this postcode. Walking time is approximate.

Stations

  • Harlow Town Rail Station

    Rail · entrance

    1.7 km straight lineabout 21 min

  • Harlow Mill Rail Station

    Rail · south entrance

    2.5 km straight lineabout 31 min

  • Roydon Rail Station

    Rail · entrance

    5.3 km straight lineabout 66 min

Bus stops

  • Arkwrights

    Bus · adj · south-east

    113 m straight lineabout 1 min

  • Arkwrights

    Bus · opp · north-west

    126 m straight lineabout 2 min

  • Maddox Road

    Bus · adj · north

    194 m straight lineabout 2 min

  • Long Ley

    Bus · adj · east

    225 m straight lineabout 3 min

  • Blackbush Spring

    Bus · adj · south

    233 m straight lineabout 3 min

Coordinates & Location for CM20 3LZ

England
Country
Harlow
Local Authority
Essex
Netteswell
Ward
Cambridge
Travel to Work
TTWA
Postcode
CM20 3LZ
Coordinates
51.7711, 0.1131
Grid reference
TL458101
Easting
545,899
Northing
210,157
Region
East of England
Plus Code
9F32Q4C7+C7
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Harlow
Travel to Work
Cambridge
ITL Region
Harlow
National Park
Non-National Park

Flood zone

Flood Zone 1 at the postcode centre (EA Flood Map for Planning)

Flood Zone 1 at the postcode centre (EA Flood Map for Planning). This is the Environment Agency Flood Map for Planning zone at the ONS postcode centroid, not a property-level assessment. Source: Environment Agency flood map for planning, © Environment Agency copyright and/or database right, Open Government Licence v3.0.

Environment Agency flood map for planning · Open Government Licence v3.0

GOV.UK long-term flood risk checkerFlood map for planning

Administrative Information

Harlow
Local Authority
Council Area
Harlow E14001267
Constituency
E14001267
Essex
Police Force
England
Ward
Netteswell
Constituency code
E14001267
EU Electoral Region
Eastern
Parish
Harlow, unparished area
International Territorial Level
Harlow

Health & NHS

East of England
Health Authority
Serving Essex
NHS England
East 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
West Essex
Sub ICB Location
NHS Essex ICB - 07H
Cancer Alliance
East of England

Statistical Areas

LSOA 2021
Super Output Area
Harlow 003D E01021852
E01021852
MSOA 2021
Mid Super Output
Harlow 003 E02004546
E02004546
LSOA 2011
Super Output Area
Harlow 003D E01021852
E01021852
MSOA 2011
Mid Super Output
Harlow 003 E02004546
E02004546
Urban: 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

7:28 AM6:00 PM
7:28 AM
Sunrise
6:00 PM
Sunset
10 hours 32 minutes of daylight today
Sunrise (today)
7:28 AM
Sunset (today)
6:00 PM
Daylight duration
10 hours 32 minutes
Time zone
GMT / BST (UTC +0 / +1)

Postcode History

January 1980
First Introduced
Active from
Not terminated
Usage Ended
Terminated
~46 years
Active Duration
1980 -> Present
January 1980 — Introduced
Postcode CM20 3LZ 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 E01021852 and MSOA E02004546 assigned.
2025 — Indices of Deprivation
IMD England rank: 11181
Present — Active
Postcode CM20 3LZ 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.

Harlow 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.

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