| Postcode | NP26 3PY | 
|---|---|
| Post Town | Caldicot | 
| Nearest station | Severn Tunnel Junction (3 km) | 
| Bus stops | Tudor Court (NE) Rockfield (NE) Rockfield (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 6 View | 
| Known addresses | Meadow House, Old Well Lane, Undy Meadow View, Old Well Lane, Undy Ty Ffynnon, Old Well Lane, Undy | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.577358 | |
|---|---|---|
| Longitude | -2.812247 | |
| Easting | 343811 | |
| Northing | 186812 | |
| Grid reference | ST438868 | |
| UTM reference | 30U 513010 5714049 | |
| what3words | debate.breakaway.youth | |
| FixPhrase | cringing lushly stoppable uneasily | |
| Plus code | 9C3VH5GQ+W4 | |
| Altitude | 9 metres (28 feet) | |
| Sunrise (today) | 7:04 | |
| Sunset (today) | 16:47 | |
| Distance away | ||
| Distance to sea | 2.3 KMs (1.4 miles) | 
| Parish | Magor with Undy | W04001073 | 
|---|---|---|
| Ward | Magor East with Undy | W05001782 | 
| Unitary Authority | Monmouthshire | W06000021 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Monmouthshire | W07000101 | 
| MP | Catherine Fookes | Labour | 
| Police force | Gwent | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Monmouthshire and Newport | |
| NUTS/ITL 2 | South East Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | August 2005 | 
|---|---|
| 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) | 10 | |
|---|---|---|
| Households (2011) | 2 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Larger rural: Nearer to a major town or city | |
| Rural/urban (2011) | Rural town and fringe | |
| Built up area (2024) | Undy and Magor | W45001180 | 
| Census output area (2021) | W00008284 | |
| Census output area (2011) | 6A3 | |
| Lower layer super output area (2021) | Monmouthshire 011E | W01001591 | 
| Lower layer super output area (2011) | Monmouthshire 011E | W01001591 | 
| Middle layer super output area (2021) | Magor & Rogiet | W02000346 | 
| Middle layer super output area (2011) | Magor & Rogiet | W02000346 | 
| Travel to work area | Newport | K01000013 | 
| Average property price in Newport | £221,300 | 
|---|---|
| Annual change | 2.7% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Meadow House, Old Well Lane, Undy | Detached (freehold) | Jun 2022 | £625,000 | 
| Detached (freehold) | Mar 2016 | £420,000 | |
| New build detached (freehold) | Dec 2006 | £399,950 | |
| Meadow View, Old Well Lane, Undy | New build detached (freehold) | Nov 2015 | £410,000 | 
| Ty Ffynnon, Old Well Lane, Undy | New build semi-detached (freehold) | Sep 2004 | £100,000 |