| Postcode | AL7 3UA | 
|---|---|
| Post Town | Welwyn, Welwyn Garden City | 
| Nearest station | Welwyn Garden City (1 km) | 
| Bus stops | Bridge Road East (S) Tewin Road (SE) Tewin Road (NW) Verulam Close (N) Verulam Close (S) Knella Road (E) | 
| Roads in this postcode | |
| Number of UPRNs | 8 View | 
| Known addresses | 47 Peartree Lane, Welwyn Garden City 49 Peartree Lane, Welwyn Garden City 51 Peartree Lane, Welwyn Garden City 53 Peartree Lane, Welwyn Garden City 55 Peartree Lane, Welwyn Garden City | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.799766 | |
|---|---|---|
| Longitude | -0.195163 | |
| Easting | 524551 | |
| Northing | 212776 | |
| Grid reference | TL245127 | |
| UTM reference | 30U 693393 5742489 | |
| what3words | rocks.twin.trips | |
| FixPhrase | crinkly magnesium sweep vaporizer | |
| Plus code | 9C3XQRX3+WW | |
| Altitude | 86 metres (283 feet) | |
| Sunrise (today) | 6:54 | |
| Sunset (today) | 16:36 | |
| Distance away | ||
| Distance to sea | 55.4 KMs (34.4 miles) | 
| Parish | Welwyn Hatfield, unparished area | E43000083 | 
|---|---|---|
| Ward | Peartree | E05011069 | 
| Local Authority District | Welwyn Hatfield | E07000241 | 
| County Electoral Division | Handside & Peartree | E58000623 | 
| 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) | 20 | |
|---|---|---|
| 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) | Welwyn Garden City | E63011463 | 
| Census output area (2021) | E00190340 | |
| Census output area (2011) | 7A3 | |
| Lower layer super output area (2021) | Welwyn Hatfield 007F | E01035604 | 
| Lower layer super output area (2011) | Welwyn Hatfield 007A | E01023954 | 
| Middle layer super output area (2021) | Peartree | E02004986 | 
| Middle layer super output area (2011) | Peartree | E02004986 | 
| 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 | 
|---|---|---|---|
| 51 Peartree Lane, Welwyn Garden City | Detached (freehold) | Dec 2020 | £470,000 | 
| Detached (leasehold) | Jun 2014 | £310,000 | |
| Detached (leasehold) | Oct 2007 | £280,000 | |
| Detached (leasehold) | Mar 1997 | £73,950 | |
| 49 Peartree Lane, Welwyn Garden City | Detached (freehold) | Nov 2020 | £600,000 | 
| Detached (freehold) | Oct 2004 | £250,000 | |
| Detached (freehold) | Feb 1998 | £127,500 | |
| 55 Peartree Lane, Welwyn Garden City | Semi-detached (leasehold) | Jun 2009 | £262,500 | 
| Semi-detached (leasehold) | Jan 2009 | £195,000 | |
| 53 Peartree Lane, Welwyn Garden City | Detached (freehold) | Feb 2005 | £250,000 | 
| Detached (freehold) | Oct 1997 | £117,000 | |
| 47 Peartree Lane, Welwyn Garden City | Semi-detached (freehold) | Sep 1997 | £102,000 |