| Postcode | AL5 5HP | 
|---|---|
| Post Town | Harpenden | 
| Nearest station | Harpenden (2 km) | 
| Bus stops | 
                       Roundfield Avenue (NE) 
Roundfield Avenue (SE) 
Lower Luton Road West (NE) 
Willow Way (NE) 
Southview Road (SW) 
Whitings Close (NE) 
                     | 
                  
| Roads in this postcode | |
| Number of UPRNs | 39 View | 
| Known addresses | 
                       27 Porters Hill, Harpenden 
                            35A Porters Hill, Harpenden 
                       | 
                  
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 51.828288 | |
|---|---|---|
| Longitude | -0.34035 | |
| Easting | 514468 | |
| Northing | 215710 | |
| Grid reference | TL144157 | |
| UTM reference | 30U 683268 5745285 | |
| what3words | hunter.those.afford | |
| FixPhrase | crisped magician shredding unchain | |
| Plus code | 9C3XRMH5+8V | |
| Altitude | 117 metres (383 feet) | |
| Sunrise (today) | 7:02 | |
| Sunset (today) | 16:30 | |
| Distance away | ||
| Distance to sea | 65.5 KMs (40.7 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) | 34 | |
|---|---|---|
| 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) | E00120296 | |
| Census output area (2011) | 7C1 | |
| Lower layer super output area (2021) | St Albans 002C | E01023687 | 
| Lower layer super output area (2011) | St Albans 002C | E01023687 | 
| 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 | £544,917 | 
|---|---|
| Annual change | 0.0% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 27 Porters Hill, Harpenden | Semi-detached (freehold) | Apr 2021 | £445,000 | 
| Semi-detached (freehold) | Dec 2005 | £220,000 | |
| Semi-detached (freehold) | Oct 1998 | £99,500 | |
| 35A Porters Hill, Harpenden | Semi-detached (freehold) | Aug 2019 | £575,000 |