AL4 0NQ maps, stats, and open data
AL4 0NQ lies on St Marks Close in Colney Heath, St Albans. AL4 0NQ is located in the Colney Heath electoral ward, within the local authority district of St Albans and the English Parliamentary constituency of St Albans. The Sub Integrated Care Board (ICB) Location is NHS Hertfordshire and West Essex ICB - 06N and the police force is Hertfordshire. This postcode has been in use since January 1980.
AL4 0NQ maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
AL4 0NQ geodata
| Easting | 519641 |
| Northing | 206211 |
| Latitude | 51.741840 |
| Longitude | -0.268587 |
Where is AL4 0NQ?
| Street | St Marks Close |
| Locality | Colney Heath |
| Town/City | St Albans |
| Country | England |
| Postcode District | AL4 |
AL4 0NQ Elevation
Elevation or altitude of AL4 0NQ as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 70m | 230ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Colney Heath |
|---|---|
| Constituency | St Albans |
House Prices
Sales of detached houses in AL4 0NQ
THE OLD VICARAGE, ST MARKS CLOSE, COLNEY HEATH, ST ALBANS, AL4 0NQ 2015 22 MAY £1,300,000 |
THE OLD VICARAGE, ST MARKS CLOSE, COLNEY HEATH, ST ALBANS, AL4 0NQ 2010 8 JAN £955,000 |
THE OLD VICARAGE, ST MARKS CLOSE, COLNEY HEATH, ST. ALBANS, AL4 0NQ 2003 10 OCT £650,000 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to AL4 0NQ
| Wistlea Crescent (High Street) | Colney Heath | 213m |
| Wistlea Crescent (High Street) | Colney Heath | 248m |
| Barley Mow Lane (Colney Heath Lane) | Smallford | 292m |
| Sleapcross Gardens (Smallford Lane) | Sleapshyde | 333m |
| Barley Mow Lane (Colney Heath Lane) | Smallford | 335m |
Nearest railway stations to AL4 0NQ
| Welham Green Station | 4km |
| St Albans City Station | 4.2km |
| Hatfield (Herts) Station | 4.4km |
Broadband
Broadband access in AL4 0NQ (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband limitations in AL4 0NQ (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
Deprivation
38.9% of English postcodes are less deprived than AL4 0NQ:Food Standards Agency
Three nearest food hygiene ratings to AL4 0NQ (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to AL4 0NQ
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Smallford Lane | 16:45 | 12:00 | 492m |
| Acrewood | 1,343m | ||
| Cranbrook Drive | 16:00 | 11:15 | 1,588m |
Environment
| Risk of AL4 0NQ flooding from rivers and sea | Medium |
AL4 0NQ ITL and AL4 0NQ LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for AL4 0NQ:
| ITL 1 Code | Name |
|---|---|
| TLH | East |
| ITL 2 Code | Name |
| TLH2 | Bedfordshire and Hertfordshire |
| ITL 3 Code | Name |
| TLH23 | Hertfordshire CC |
| LAU 1 Code | Name |
| E07000240 | St Albans |
AL4 0NQ census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for AL4 0NQ:
| Code | Name | |
|---|---|---|
| OA | E00120245 | |
| LSOA | E01023679 | St Albans 015C |
| MSOA | E02004938 | St Albans 015 |
Nearest postcodes to AL4 0NQ
| AL4 0ND | Coopers Gate | 201m |
| AL4 0NW | Richardson Place | 215m |
| AL4 0NL | Wistlea Crescent | 248m |
| AL4 0NN | High Street | 278m |
| AL4 0NH | Heathside | 284m |
| AL4 0PH | Cutmore Drive | 330m |
| AL4 0NR | Park Lane | 403m |
| AL4 0NJ | Park Corner | 417m |
| AL4 0NP | High Street | 501m |
| AL4 0RS | Barley Mow Lane | 553m |
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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