CM23 3DA

Bishop's Stortford Central · East Hertfordshire · England

Updated September 2026

Compare this postcode

Location overview

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Local authority
East Hertfordshire
Postcode district
CM23
Postcode sector
CM23 3

Nearby postcodes

Nearby postcode distances
Postcode Distance
CM23 3DQ 34 m
CM23 3DH 37 m
CM23 3FS 65 m
CM23 3FR 72 m
CM23 3DW 75 m
Complete postcode fields and official codes
Postcode
CM23 3DA
Status
Current
Introduced
1 February 2003
Terminated
Not published
Postcode area
CM
Postcode district
CM23
Postcode sector
CM23 3
Latitude
51.863157
Longitude
0.165738
British National Grid easting
549,223
British National Grid northing
220,502

Statistical and administrative geographies

Country
England · E92000001
Region
East of England · E12000006
Local authority district
East Hertfordshire · E07000242
Parish or community
E04013541
Westminster constituency
Hertford and Stortford · E14001283
Output area
E00190247
Lower layer super output area
East Hertfordshire 007B · E01023444
Middle layer super output area
East Hertfordshire 007 · E02004884

Postcode source versions

Explore CM23

43 recorded sales at this postcode
Address Date Price
Southmill Court, Flat 14, Southmill Road, Bishop's Stortford, CM23 3DA 24 March 2026 £275,000
Southmill Court, Flat 16, Southmill Road, Bishop's Stortford, CM23 3DA 28 March 2025 £300,000
Southmill Court, Flat 21, Southmill Road, Bishop's Stortford, CM23 3DA 5 March 2024 £270,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
29
Primary
18
Secondary
8
  1. Thorn Grove Primary School

    Community school

    561 m
  2. The Hertfordshire & Essex High School and Science College

    Academy converter

    632 m
  3. Thorley Hill Primary School

    Community school

    794 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
2,186
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 843
  • Anti social behaviour 378
  • Shoplifting 248
  • Criminal damage and arson 140
  • Other theft 130

Census 2021

Population and age profile

Postcode residents
46

20 female, 26 male

Postcode households
22
Residents per household
2.1
CM23 3 residents
10,596

Age bands in CM23 3

Wider postcode sector
Age 0 to 14
17.3%

1,729 residents

Age 15 to 24
10.9%

1,092 residents

Age 25 to 44
32.8%

3,278 residents

Age 45 to 64
25.2%

2,514 residents

Age 65 and over
13.7%

1,370 residents

This postcode contained 0.4% of the sector's usual residents on Census Day. The age profile describes the wider CM23 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+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
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

4

within 5 km

  • SOUTH STREET SURGERY

    83 SOUTH STREET, BISHOP'S STORTFORD, CM23 3AP

    ODS code E82074

    516 m

  • HELIX MEDICAL CENTRE

    HERTS AND ESSEX HOSPITAL, CAVELL DRIVE, BISHOP'S STORTFORD, CM23 5JH

    ODS code E82654

    647 m

  • CHURCH STREET PARTNERSHIP

    30A CHURCH STREET, BISHOP'S STORTFORD, CM23 2LY

    ODS code E82067

    928 m

  • PEACOCK SURGERY

    1ST FLOOR CASTLE MALTINGS, LOWER STREET, STANSTED, STANSTED, CM24 8XG

    ODS code F81053

    4.9 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 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • South Mill Arts

    BCT · Bishops Stortford

    0.1 miles
  • Southmill Road

    BCT · Bishops Stortford

    0.1 miles
  • South Mill Arts

    BCT · Bishops Stortford

    0.1 miles
  • South Mill Arts

    BCT · Bishops Stortford

    0.1 miles
  • Pryors Close

    BCT · Bishops Stortford

    0.1 miles

Relative deprivation

English Indices of Deprivation 2025 for East Hertfordshire 007B, 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

10 of 10

Overall England rank

31,519 of 33,755

Income
9 of 10
Employment
10 of 10
Education and skills
9 of 10
Health and disability
10 of 10
Crime
8 of 10
Housing and services
10 of 10
Living environment
6 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
11
Low risk addresses
12
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 £272,500 from 4 recorded sales in CM23 3DA. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for East Hertfordshire is £460,778 in June 2026, up 4.0% year on year.

Schools

29 open schools are in scope, including 18 primary and 8 secondary schools. Thorn Grove Primary School is the nearest published school at 561 m.

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

Recorded crime

2,186 published events cover 12 months, averaging 182.167 events per published month. The largest recorded category is Violence and sexual offences with 843 events.

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