| Postcode | AL7 4PN | 
|---|---|
| Post Town | Welwyn, Welwyn Garden City | 
| Nearest station | Welwyn Garden City (2 km) | 
| Bus stops | Beehive Green (NE) Sweet Briar (W) Sweet Briar (E) Thumbswood (NE) Howlands (W) Thumbswood (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 1 View | 
| Known addresses | 6 Hall Grove, Welwyn Garden City | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.789112 | |
|---|---|---|
| Longitude | -0.181842 | |
| Easting | 525499 | |
| Northing | 211614 | |
| Grid reference | TL254116 | |
| UTM reference | 30U 694357 5741340 | |
| what3words | battle.bounty.flood | |
| FixPhrase | crinkly magnesium subsiding tinkling | |
| Plus code | 9C3XQRQ9+J7 | |
| Altitude | 76 metres (249 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:36 | |
| Distance away | ||
| Distance to sea | 54 KMs (33.6 miles) | 
| Parish | Welwyn Hatfield, unparished area | E43000083 | 
|---|---|---|
| Ward | Howlands | E05011066 | 
| Local Authority District | Welwyn Hatfield | E07000241 | 
| County Electoral Division | Welwyn Garden City South | E58000676 | 
| Local Authority | Hertfordshire | E10000015 | 
| County | Hertfordshire | E10000015 | 
| Constituency (2024) | Welwyn Hatfield | E14001573 | 
| MP | Andrew Lewin | Labour | 
| Police force | Hertfordshire | |
| Water company | Affinity Water | |
| Sewage company | Thames Water | |
| NUTS/ITL 3 | North and East 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) | 2 | |
|---|---|---|
| Households (2011) | 1 | |
| 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) | Welwyn Garden City | E63011463 | 
| Census output area (2021) | E00121575 | |
| Census output area (2011) | 6B1 | |
| Lower layer super output area (2021) | Welwyn Hatfield 008D | E01023946 | 
| Lower layer super output area (2011) | Welwyn Hatfield 008D | E01023946 | 
| Middle layer super output area (2021) | Hall Grove | E02004987 | 
| Middle layer super output area (2011) | Hall Grove | E02004987 | 
| Travel to work area | Stevenage and Welwyn Garden City | E30000272 | 
| Average property price in St Albans | £541,094 | 
|---|---|
| Annual change | -0.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 6 Hall Grove, Welwyn Garden City | Detached (freehold) | Aug 2024 | £1,100,000 |