| Postcode | NP25 4BW | 
|---|---|
| Post Town | Monmouth | 
| Nearest station | Chepstow (16 km) | 
| Bus stops | 
                       No nearby bus stops 
                     | 
                  
| Number of UPRNs | 23 View | 
| Known addresses | 
                       New Trecastle Farm, Penyclawdd 
                            Old Trecastle Barn, Penyclawdd 
                            Willow Tree Lodge, Penyclawdd 
                       | 
                  
| Main property type | Other | 
| Businesses | 
| Latitude | 51.763384 | |
|---|---|---|
| Longitude | -2.788471 | |
| Easting | 345682 | |
| Northing | 207483 | |
| Grid reference | SO456074 | |
| UTM reference | 30U 514598 5734742 | |
| what3words | secondly.timing.renovated | |
| FixPhrase | crinkly lushness spud uncooked | |
| Plus code | 9C3VQ676+9J | |
| Altitude | 140 metres (459 feet) | |
| Sunrise (today) | 7:11 | |
| Sunset (today) | 16:40 | |
| Distance away | ||
| Distance to sea | 18.4 KMs (11.5 miles) | 
| Parish | Mitchel Troy | W04001075 | 
|---|---|---|
| Ward | Mitchel Troy and Trellech United | W05001785 | 
| 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 | June 1999 | 
|---|---|
| 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) | 28 | |
|---|---|---|
| Households (2011) | 9 | |
| Index of Multiple Deprivation (2019) | 
                     Most deprivedLeast deprived 
                   | 
                |
| Average household income (2020) | 
                       Lowest (£22,200)
                        Highest (£108,100)
                       
                     | 
                  |
| Rural/urban (2021) | Smaller rural: Nearer to a major town or city | |
| Rural/urban (2011) | Rural hamlet and isolated dwellings | |
| Census output area (2021) | W00008232 | |
| Census output area (2011) | 1A2 | |
| Lower layer super output area (2021) | Monmouthshire 005E | W01001581 | 
| Lower layer super output area (2011) | Monmouthshire 005E | W01001581 | 
| Middle layer super output area (2021) | Rhaglan & Llantilio Crossenny | W02000340 | 
| Middle layer super output area (2011) | Rhaglan & Llantilio Crossenny | W02000340 | 
| Travel to work area | Newport | K01000013 | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Old Trecastle Barn, Penyclawdd | Other (freehold) | Oct 2021 | £825,000 | 
| Willow Tree Lodge, Penyclawdd | Detached (freehold) | Mar 2020 | £432,000 | 
| New Trecastle Farm, Penyclawdd | Other (freehold) | Jun 2019 | £355,000 |