Property market
The five-year median is £885,000 from 7 recorded sales in AL5 4SJ. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for St Albans is £651,448 in June 2026, up 4.3% year on year.
AL5 4SJ
Harpenden West · St Albans · England
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Harpenden
- Ward
- Harpenden West
- Local authority
- St Albans
- Constituency
- Harpenden and Berkhamsted
- Postcode district
- AL5
- Postcode sector
- AL5 4
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- AL5 4SJ
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- AL
- Postcode district
- AL5
- Postcode sector
- AL5 4
- Latitude
- 51.814388
- Longitude
- -0.352612
- British National Grid easting
- 513,656
- British National Grid northing
- 214,144
Statistical and administrative geographies
- Country
- England · E92000001
- Region
- East of England · E12000006
- Local authority district
- St Albans · E07000240
- Electoral ward
- Harpenden West · E05013955
- Parish or community
- E04013284
- Westminster constituency
- Harpenden and Berkhamsted · E14001268
- Output area
- E00120346
- Lower layer super output area
- St Albans 003C · E01023701
- Middle layer super output area
- St Albans 003 · E02004926
Postcode source versions
- Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
- Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
- Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence
Explore AL5
Property
46 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 16, Arden Grove, Harpenden, AL5 4SJ | 4 February 2025 | £1,460,000 |
| Old Post House, 20, Flat 7, Arden Grove, Harpenden, AL5 4SJ | 25 September 2024 | £885,000 |
| Arden Court, Flat 10, Arden Grove, Harpenden, AL5 4SJ | 3 September 2024 | £622,500 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 27
- Primary
- 17
- Secondary
- 5
- 171 m
Harpenden Academy
Free schools
- 307 m
St Dominic Catholic Primary School
Academy converter
- 493 m
St Nicholas CofE VA Primary School
Voluntary aided school
Recorded crime
Within 1 mile of this postcode
- Published events
- 1,185
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 259
- Anti social behaviour 203
- Shoplifting 173
- Other theft 144
- Vehicle crime 126
Census 2021
Population and age profile
- Postcode residents
- 55
- Postcode households
- 26
- Residents per household
- 2.1
- AL5 4 residents
- 7,137
28 female, 27 male
Age bands in AL5 4
Wider postcode sector- Age 0 to 14
- 23%
- Age 15 to 24
- 10%
- Age 25 to 44
- 21.9%
- Age 45 to 64
- 29%
- Age 65 and over
- 16.1%
1,656 residents
717 residents
1,578 residents
2,092 residents
1,163 residents
This postcode contained 0.8% of the sector's usual residents on Census Day. The age profile describes the wider AL5 4 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+
- 71.4%
- Ultrafast, 100 Mbit/s+
- 71.4%
- Ultrafast, 300 Mbit/s+
- 71.4%
- Gigabit-capable
- 71.4%
- Unable to receive decent fixed or FWA broadband
- 0%
- Next Generation Access
- 71.4%
- 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
3
within 5 km straight-line
DAVENPORT HOUSE SURGERY
DAVENPORT HOUSE, BOWERS WAY, HARPENDEN, AL5 4HX
ODS code E82077
240 m
VILLAGE SURGERY
AMENBURY LANE, HARPENDEN, AL5 2BT
ODS code E82037
327 m
ELMS MEDICAL PRACTICE
5 STEWART ROAD, HARPENDEN, AL5 4QA
ODS code E82071
504 m
Nearby transport
- 0.0 miles
Harpenden Rail Station
RSE · Harpenden
- 0.1 miles
Harpenden Rail Station
RLY · Harpenden
- 0.1 miles
Harpenden Railway Station
BCT · Harpenden
- 0.1 miles
Harpenden Railway Station
BCT · Harpenden
- 0.1 miles
Harpenden Rail Station
RSE · Harpenden
Relative deprivation
English Indices of Deprivation 2025 for St Albans 003C, 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
29,146 of 33,755
- Income
- 8 of 10
- Employment
- 8 of 10
- Education and skills
- 10 of 10
- Health and disability
- 10 of 10
- Crime
- 7 of 10
- Housing and services
- 10 of 10
- Living environment
- 4 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
27 open schools are in scope, including 17 primary and 5 secondary schools. Harpenden Academy is the nearest published school at 171 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
1,185 published events cover 12 months, averaging 98.75 events per published month. The largest recorded category is Violence and sexual offences with 259 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.