| Postcode | AL6 9ES | 
|---|---|
| Post Town | Welwyn | 
| Nearest station | Welwyn North (2 km) | 
| Bus stops | St Mary's Church (SW) St Mary's Church (NE) Church Place (N) Roman Baths (S) Church Place (SW) Fire Station (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 7 View | 
| Known addresses | 48 Mill Lane, Welwyn 50 Mill Lane, Welwyn 56 Mill Lane, Welwyn 58 Mill Lane, Welwyn 60 Mill Lane, Welwyn | 
| Main property type | Semi-detached | 
| Businesses |  | 
| Latitude | 51.829992 | |
|---|---|---|
| Longitude | -0.212503 | |
| Easting | 523273 | |
| Northing | 216108 | |
| Grid reference | TL232161 | |
| UTM reference | 30U 692069 5745804 | |
| what3words | lined.dreams.coach | |
| FixPhrase | crisped magma sibling target | |
| Plus code | 9C3XRQHP+XX | |
| Altitude | 69 metres (226 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:36 | |
| Distance away | ||
| Distance to sea | 58.4 KMs (36.3 miles) | 
| Parish | Welwyn | E04004822 | 
|---|---|---|
| Ward | Welwyn West | E05011073 | 
| Local Authority District | Welwyn Hatfield | E07000241 | 
| County Electoral Division | Welwyn | E58000675 | 
| 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) | 14 | |
|---|---|---|
| Households (2011) | 7 | |
| 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 | E63011412 | 
| Census output area (2021) | E00121711 | |
| Census output area (2011) | 5B3 | |
| Lower layer super output area (2021) | Welwyn Hatfield 002B | E01023968 | 
| Lower layer super output area (2011) | Welwyn Hatfield 002B | E01023968 | 
| Middle layer super output area (2021) | Welwyn & Hatfield Garden Village | E02004981 | 
| Middle layer super output area (2011) | Welwyn & Hatfield Garden Village | E02004981 | 
| 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 | 
|---|---|---|---|
| 56 Mill Lane, Welwyn | Semi-detached (freehold) | Apr 2024 | £870,000 | 
| 48 Mill Lane, Welwyn | Semi-detached (freehold) | Feb 2021 | £575,000 | 
| Semi-detached (freehold) | Sep 2007 | £375,000 | |
| Semi-detached (freehold) | Jan 2003 | £265,111 | |
| 58 Mill Lane, Welwyn | Semi-detached (freehold) | Aug 2019 | £1,050,000 | 
| Semi-detached (freehold) | Aug 1995 | £349,500 | |
| 60 Mill Lane, Welwyn | Detached (freehold) | Dec 2016 | £835,000 | 
| 50 Mill Lane, Welwyn | Detached (freehold) | Nov 2014 | £945,000 |