AL4 0SA

Colney Heath · St Albans · England

Updated September 2026

Compare this postcode

Location overview

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Post town
St Albans
Local authority
St Albans
Constituency
St Albans
Postcode district
AL4
Postcode sector
AL4 0

Nearby postcodes

Nearby postcode distances
Postcode Distance
AL4 0SF 82 m
AL4 0SB 161 m
AL4 0SD 168 m
AL4 0RX 216 m
AL4 0FH 340 m
Complete postcode fields and official codes
Postcode
AL4 0SA
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
AL
Postcode district
AL4
Postcode sector
AL4 0
Latitude
51.746152
Longitude
-0.264908
British National Grid easting
519,882
British National Grid northing
206,696

Statistical and administrative geographies

Country
England · E92000001
Region
East of England · E12000006
Local authority district
St Albans · E07000240
Parish or community
E04013283
Westminster constituency
St Albans · E14001507
Output area
E00120258
Lower layer super output area
St Albans 021A · E01023680
Middle layer super output area
St Albans 021 · E02007090

Postcode source versions

Explore AL4

18 recorded sales at this postcode
Address Date Price
14, Smallford Lane, Smallford, St Albans, AL4 0SA 16 June 2021 £575,000
8, Smallford Lane, Smallford, St Albans, AL4 0SA 26 February 2021 £640,000
9, Smallford Lane, Smallford, St Albans, AL4 0SA 22 September 2017 £475,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
51
Primary
34
Secondary
7
  1. Colney Heath Primary School

    Academy converter

    572 m
  2. Nicholas Breakspear Catholic School

    Academy converter

    1.7 km
  3. University of Hertfordshire

    Higher education institutions

    1.7 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
269
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 86
  • Anti social behaviour 38
  • Vehicle crime 31
  • Criminal damage and arson 29
  • Other theft 20

Census 2021

Population and age profile

Postcode residents
56

24 female, 32 male

Postcode households
17
Residents per household
3.3
AL4 0 residents
10,462

Age bands in AL4 0

Wider postcode sector
Age 0 to 14
21.8%

2,193 residents

Age 15 to 24
11.5%

1,159 residents

Age 25 to 44
22.9%

2,300 residents

Age 45 to 64
29.9%

3,009 residents

Age 65 and over
13.8%

1,386 residents

This postcode contained 0.5% of the sector's usual residents on Census Day. The age profile describes the wider AL4 0 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+
96.8%
Ultrafast, 300 Mbit/s+
96.8%
Gigabit-capable
96.8%
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

8

within 5 km

  • BURVILL HOUSE SURGERY

    52-54 DELLFIELD ROAD, HATFIELD, AL10 8HP

    ODS code E82023

    3.1 km

  • LISTER HOUSE SURGERY

    THE COMMON, HATFIELD, AL10 0NL

    ODS code E82018

    3.3 km

  • WRAFTON HOUSE SURGERY

    9-11 WELLFIELD ROAD, HATFIELD, AL10 0BS

    ODS code E82002

    3.4 km

  • VERULAM MEDICAL GROUP

    COLNEY MEDICAL CENTRE, 45-47 KINGS ROAD, LONDON COLNEY, ST. ALBANS, AL2 1ES

    ODS code E82113

    3.5 km

  • SUMMERFIELD HEALTH CENTRE

    CALEDON ROAD, LONDON COLNEY, ST. ALBANS, AL2 1PU

    ODS code E82107

    3.5 km

  • HATFIELD ROAD SURGERY

    2 THE PARADE, ELLIS HOUSE, ST. ALBANS, AL1 3FY

    ODS code E82004

    4.3 km

  • POTTERELLS MEDICAL CENTRE

    STATION ROAD, WELHAM GREEN, NORTH MYMMS, HATFIELD, AL9 7SN

    ODS code E82058

    4.4 km

  • PARKBURY HOUSE SURGERY

    ST. PETERS STREET, ST ALBANS, AL1 3HD

    ODS code E82060

    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

  • Sleapshyde Lane

    BCT · Sleapshyde

    0.0 miles
  • Sleapshyde Lane

    BCT · Sleapshyde

    0.0 miles
  • Sleapcross Gardens

    BCT · Sleapshyde

    0.1 miles
  • Sleapcross Gardens

    BCT · Sleapshyde

    0.1 miles
  • Wistlea Crescent

    BCT · Colney Heath

    0.3 miles

Relative deprivation

English Indices of Deprivation 2025 for St Albans 021A, 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

9 of 10

Overall England rank

27,969 of 33,755

Income
8 of 10
Employment
8 of 10
Education and skills
8 of 10
Health and disability
9 of 10
Crime
7 of 10
Housing and services
6 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
0
Medium risk addresses
0
Low risk addresses
5
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

51 open schools are in scope, including 34 primary and 7 secondary schools. Colney Heath Primary School is the nearest published school at 572 m.

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

Recorded crime

269 published events cover 12 months, averaging 22.417 events per published month. The largest recorded category is Violence and sexual offences with 86 events.

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