| Postcode | AL5 5RQ | 
|---|---|
| Post Town | Harpenden | 
| Nearest station | Harpenden (1 km) | 
| Bus stops | Chesterton Avenue (NW) Langdale Avenue (NE) Langdale Avenue (S) Ashwell Park (SW) Lyndhurst Drive (SW) Gilpin Green (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 12 View | 
| Known addresses | 113 Crabtree Lane, Harpenden 113A Crabtree Lane, Harpenden 121 Crabtree Lane, Harpenden 123 Crabtree Lane, Harpenden 125 Crabtree Lane, Harpenden 127 Crabtree Lane, Harpenden 129 Crabtree Lane, Harpenden | 
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 51.81681 | |
|---|---|---|
| Longitude | -0.339408 | |
| Easting | 514562 | |
| Northing | 214435 | |
| Grid reference | TL145144 | |
| UTM reference | 30U 683380 5744011 | |
| what3words | honest.cheek.final | |
| FixPhrase | crisped magician septic urban | |
| Plus code | 9C3XRM86+P6 | |
| Altitude | 119 metres (391 feet) | |
| Sunrise (today) | 6:55 | |
| Sunset (today) | 16:37 | |
| Distance away | ||
| Distance to sea | 64.7 KMs (40.2 miles) | 
| Parish | Harpenden Town | E04013284 | 
|---|---|---|
| Ward | Harpenden East | E05013952 | 
| Local Authority District | St Albans | E07000240 | 
| County Electoral Division | Harpenden North East | E58000624 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Harpenden and Berkhamsted | E14001268 | 
| MP | Victoria Collins | Liberal Democrat | 
| Police force | Hertfordshire | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | South West Hertfordshire | |
| NUTS/ITL 2 | Bedfordshire and Hertfordshire | |
| NUTS/ITL 1 | East of England | |
| Country | England | E92000001 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 29 | |
|---|---|---|
| Households (2011) | 10 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Built up area (2024) | Harpenden | E63011425 | 
| Census output area (2021) | E00120291 | |
| Census output area (2011) | 5A2 | |
| Lower layer super output area (2021) | St Albans 002A | E01023685 | 
| Lower layer super output area (2011) | St Albans 002A | E01023685 | 
| Middle layer super output area (2021) | Harpenden East | E02004925 | 
| Middle layer super output area (2011) | Harpenden East | E02004925 | 
| Travel to work area | Luton | E30000237 | 
| Average property price in St Albans | £541,094 | 
|---|---|
| Annual change | -0.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 125 Crabtree Lane, Harpenden | Semi-detached (freehold) | Nov 2024 | £950,000 | 
| Semi-detached (freehold) | Jan 2018 | £740,000 | |
| Semi-detached (freehold) | Aug 1999 | £152,500 | |
| Semi-detached (freehold) | Jan 1995 | £97,000 | |
| 129 Crabtree Lane, Harpenden | Semi-detached (freehold) | Sep 2019 | £735,000 | 
| Semi-detached (freehold) | Oct 2006 | £410,000 | |
| Semi-detached (freehold) | Feb 1998 | £175,000 | |
| 123 Crabtree Lane, Harpenden | Semi-detached (freehold) | Aug 2016 | £735,000 | 
| Semi-detached (freehold) | May 2003 | £320,000 | |
| Semi-detached (freehold) | Feb 2000 | £161,000 | |
| 121 Crabtree Lane, Harpenden | Semi-detached (freehold) | Aug 2016 | £685,000 | 
| 127 Crabtree Lane, Harpenden | Semi-detached (freehold) | Nov 2014 | £780,000 | 
| Semi-detached (freehold) | Sep 1995 | £115,000 | |
| 113A Crabtree Lane, Harpenden | Detached (freehold) | Dec 2011 | £1,200,000 | 
| Detached (freehold) | Nov 2009 | £905,000 | |
| 113 Crabtree Lane, Harpenden | Detached (freehold) | Sep 2006 | £665,000 | 
| Detached (freehold) | May 1999 | £214,789 |