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CM20 3BJ

Mark Hall · Harlow · England

Updated September 2026

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Location overview

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Post town
Harlow
Ward
Mark Hall
Local authority
Harlow
Constituency
Harlow
Postcode district
CM20
Postcode sector
CM20 3

Nearby postcodes

Nearby postcode distances
Postcode Distance
CM20 3BL 93 m
CM20 3BN 107 m
CM20 3BW 118 m
CM20 3BH 145 m
CM20 3BB 153 m
Complete postcode fields and official codes
Postcode
CM20 3BJ
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
CM
Postcode district
CM20
Postcode sector
CM20 3
Latitude
51.775202
Longitude
0.119254
British National Grid easting
546,307
British National Grid northing
210,627

Statistical and administrative geographies

Country
England · E92000001
Region
East of England · E12000006
Local authority district
Harlow · E07000073
Electoral ward
Mark Hall · E05015686
Parish or community
E43000064
Westminster constituency
Harlow · E14001267
Output area
E00110986
Lower layer super output area
Harlow 002A · E01021844
Middle layer super output area
Harlow 002 · E02004545

Postcode source versions

Explore CM20

Property

View all property records
29 recorded sales at this postcode
Address Date Price
12, Cooks Spinney, Harlow, CM20 3BJ 2 December 2022 £320,000
3, Cooks Spinney, Harlow, CM20 3BJ 30 August 2022 £331,000
15, Cooks Spinney, Harlow, CM20 3BJ 20 December 2021 £340,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
44
Primary
32
Secondary
7

  1. Cooks Spinney Primary Academy and Nursery

    Academy sponsor led

    205 m

  2. Tany's Dell Primary School and Nursery

    Academy converter

    549 m

  3. St Alban's Catholic Academy

    Academy converter

    711 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
3,032
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 1,239
  • Shoplifting 286
  • Public order 236
  • Anti social behaviour 236
  • Criminal damage and arson 211

Census 2021

Population and age profile

Postcode residents
87

47 female, 40 male

Postcode households
32
Residents per household
2.7
CM20 3 residents
11,736

Age bands in CM20 3

Wider postcode sector
Age 0 to 14
20.5%

2,426 residents

Age 15 to 24
11.5%

1,355 residents

Age 25 to 44
28.8%

3,401 residents

Age 45 to 64
24.3%

2,872 residents

Age 65 and over
15%

1,772 residents

This postcode contained 0.7% of the sector's usual residents on Census Day. The age profile describes the wider CM20 3 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+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
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.

GP practices

10

within 5 km

  • NUFFIELD HOUSE HEALTH CENTRE

    NUFFIELD HOUSE SURGERY, THE STOW, HARLOW, CM20 3AX

    ODS code F81120

    450 m

  • SYDENHAM HOUSE SURGERY

    SYDENHAM HOUSE, MONSWICK ROAD, LONG LEY, HARLOW, CM20 3NT

    ODS code F81619

    823 m

  • CHURCH LANGLEY MEDICAL PRACTICE

    CHURCH LANGLEY WAY, HARLOW, CM17 9TG

    ODS code F81078

    1.3 km

  • OLD HARLOW HEALTH CENTRE

    JENNER HSE, GARDEN TCE RD, HARLOW, CM17 0AX

    ODS code F81056

    1.4 km

  • THE HAMILTON PRACTICE

    KEATS HOUSE, THE FAIRWAY, BUSHFAIR, HARLOW, CM18 6LY

    ODS code F81047

    2.1 km

  • THE ROSS PRACTICE

    KEATS HOUSE, BUSH FAIR, HARLOW, CM18 6LY

    ODS code F81106

    2.1 km

  • ADDISON HOUSE - HAQUE PRACTICE

    ADDISON HOUSE, HARLOW, CM20 1DS

    ODS code F81181

    2.1 km

  • LISTER MEDICAL CENTRE

    LISTER HOUSE HEALTH CENTRE, ABERCROMBIE WAY, HARLOW, CM18 6YJ

    ODS code F81027

    3.0 km

  • GARDENS AND JACOBS MEDICAL PARTNERSHIP

    JACOBS & GARDENS NEUROLOGICAL CTRS, HIGH WYCH ROAD, SAWBRIDGEWORTH, CM21 0HH

    ODS code Y01924

    3.6 km

  • CENTRAL SURGERY

    BELL STREET, SAWBRIDGEWORTH, CM21 9AQ

    ODS code E82100

    4.6 km

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Mandela Avenue

    BCT · Mark Hall

    0.2 miles

  • The Stow Upper

    BCT · Mark Hall

    0.2 miles

  • Moot House

    BCT · Mark Hall

    0.2 miles

  • Moot House

    BCT · Mark Hall

    0.2 miles

  • Small Copper

    BCT · Mark Hall

    0.2 miles

Relative deprivation

English Indices of Deprivation 2025 for Harlow 002A, 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

4 of 10

Overall England rank

11,246 of 33,755

Income
3 of 10
Employment
4 of 10
Education and skills
2 of 10
Health and disability
5 of 10
Crime
2 of 10
Housing and services
8 of 10
Living environment
7 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
1
Medium risk addresses
0
Low risk addresses
4
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

Property market

The five-year median is £331,000 from 3 recorded sales in CM20 3BJ. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Harlow is £313,338 in June 2026, up 1.7% year on year.

Schools

44 open schools are in scope, including 32 primary and 7 secondary schools. Cooks Spinney Primary Academy and Nursery is the nearest published school at 205 m.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

3,032 published events cover 12 months, averaging 252.667 events per published month. The largest recorded category is Violence and sexual offences with 1,239 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.