| Postcode | AL5 3BS | 
|---|---|
| Post Town | Harpenden | 
| Nearest station | Harpenden (2 km) | 
| Bus stops | 
                       Ridgewood Drive (SE) 
Park Rise Close (NE) 
Park Rise Close (SW) 
Farm Avenue (SE) 
Farm Avenue (NW) 
Roundwood Park School (NW) 
                     | 
                  
| Roads in this postcode | |
| Number of UPRNs | 7 View | 
| Known addresses | 
                       Roundwood Lodge, 71A Roundwood Lane, Harpenden 
                            61 Roundwood Lane, Harpenden 
                            65 Roundwood Lane, Harpenden 
                            67 Roundwood Lane, Harpenden 
                            71 Roundwood Lane, Harpenden 
                       | 
                  
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.824641 | |
|---|---|---|
| Longitude | -0.376079 | |
| Easting | 512015 | |
| Northing | 215249 | |
| Grid reference | TL120152 | |
| UTM reference | 30U 680821 5744790 | |
| what3words | active.motor.apply | |
| FixPhrase | crisped magician shininess unrest | |
| Plus code | 9C3XRJFF+VH | |
| Altitude | 132 metres (433 feet) | |
| Sunrise (today) | 7:02 | |
| Sunset (today) | 16:30 | |
| Distance away | ||
| Distance to sea | 67.3 KMs (41.8 miles) | 
| Parish | Harpenden Town | E04013284 | 
|---|---|---|
| Ward | Harpenden North & Rural | E05013953 | 
| 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) | 19 | |
|---|---|---|
| Households (2011) | 6 | |
| 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) | E00120311 | |
| Census output area (2011) | 6A1 | |
| Lower layer super output area (2021) | St Albans 001B | E01023691 | 
| Lower layer super output area (2011) | St Albans 001B | E01023691 | 
| Middle layer super output area (2021) | Harpenden North | E02004924 | 
| Middle layer super output area (2011) | Harpenden North | E02004924 | 
| Travel to work area | Luton | E30000237 | 
| Average property price in St Albans | £544,917 | 
|---|---|
| Annual change | 0.0% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 67 Roundwood Lane, Harpenden | Detached (freehold) | Mar 2021 | £1,335,000 | 
| Roundwood Lodge, 71A Roundwood Lane, Harpenden | Detached (freehold) | Nov 2020 | £1,590,000 | 
| Detached (freehold) | Jan 2012 | £1,250,000 | |
| 71 Roundwood Lane, Harpenden | Detached (freehold) | Oct 2009 | £647,810 | 
| Detached (freehold) | Feb 2007 | £1,000,000 | |
| 65 Roundwood Lane, Harpenden | Detached (freehold) | Aug 2002 | £570,000 | 
| 61 Roundwood Lane, Harpenden | Detached (freehold) | Jan 1998 | £320,000 |