AL3 4AP lies on King Harry Lane in St. Albans. AL3 4AP is located in the Verulam 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 May 2005.


| Easting | 513858 |
| Northing | 206304 |
| Latitude | 51.743879 |
| Longitude | -0.352276 |
| Street | King Harry Lane |
| Town/City | St. Albans |
| Country | England |
| Postcode District | AL3 |
Elevation or altitude of AL3 4AP as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 100m | 328ft |
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.
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| Ward | Verulam |
|---|---|
| Constituency | St Albans |
BIRKDALE LODGE, 12A, KING HARRY LANE, ST. ALBANS, AL3 4AP 2004 9 JUN £500,000 |
| St Columba's College (King Harry Lane) | St Stephens | 135m |
| St Columba's College (King Harry Lane) | St Stephens | 141m |
| Cardinal Grove (Abbey Avenue) | St Stephens | 225m |
| Mortimer Crescent (King Harry Lane) | Verulam | 257m |
| King Harry Ph (Watford Road) | St Stephens | 327m |
| St Albans Abbey Station | 0.7km |
| St Albans City Station | 1.9km |
| Park Street Station | 2.2km |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Mayne Avenue South | 17:30 | 12:00 | 750m |
| St Stephens P.o | 17:30 | 12:00 | 816m |
| Church End | 16:40 | 11:00 | 901m |
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 AL3 4AP:
| 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 |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for AL3 4AP:
| Code | Name | |
|---|---|---|
| OA | E00120575 | |
| LSOA | E01023743 | St Albans 014B |
| MSOA | E02004937 | St Albans 014 |
| AL3 4AF | King Harry Lane | 41m |
| AL3 4AR | King Harry Lane | 51m |
| AL3 4AT | Hillcrest | 120m |
| AL3 4AS | King Harry Lane | 124m |
| AL3 4AY | Cardinal Grove | 176m |
| AL3 4LD | Havercroft Close | 213m |
| AL3 4AE | Spinneys Drive | 222m |
| AL3 4BJ | Abbey Avenue | 226m |
| AL3 4BN | Romans End | 241m |
| AL3 4AU | King Harry Lane | 249m |