| Postcode | CF3 2UB | 
|---|---|
| Post Town | Cardiff | 
| Nearest station | Pye Corner (6 km) | 
| Bus stops | Post Office (SE) Oakfields (NW) Oakfields (SE) Pentwyn Terrace (SE) Pentwyn Terrace (NW) The Shires (SE) | 
| Roads in this postcode | |
| Number of UPRNs | 72 View | 
| Known addresses | Blacktown Farm, Wellfield Road, Marshfield Chauen, Wellfield Road, Marshfield Cilgwyn, Wellfield Road, Marshfield Clandeboye, Wellfield Road, Marshfield Crossways, Wellfield Road, Marshfield Dunelm, Wellfield Road, Marshfield Geneva House, Wellfield Road, Marshfield Gold Roses, Wellfield Road, Marshfield Green Ford, Wellfield Road, Marshfield Karelia, Wellfield Road, Marshfield Little Challows, Wellfield Road, Marshfield Newcroft, Wellfield Road, Marshfield Oak House, Wellfield Road, Marshfield Oakdene, Wellfield Road, Marshfield Pear Tree Cottage, Wellfield Road, Marshfield Rimaho, Wellfield Road, Marshfield Rose Cottage, Wellfield Road, Marshfield Rosenburg, Wellfield Road, Marshfield South View, Wellfield Road, Marshfield Sunflower, Wellfield Road, Marshfield The Elms, Wellfield Road, Marshfield The Green, Wellfield Road, Marshfield Ty Gwydr, Wellfield Road, Marshfield Ty Llech, Wellfield Road, Marshfield Tyn Y Coed, Wellfield Road, Marshfield Walnut House, Wellfield Road, Marshfield Well House, Wellfield Road, Marshfield Wellfield House, Wellfield Road, Marshfield Willow Mead, Wellfield Road, Marshfield 2 Dunvegan Cottage, Wellfield Road, Marshfield 4 Wellfield Road, Marshfield | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.530178 | |
|---|---|---|
| Longitude | -3.06718 | |
| Easting | 326068 | |
| Northing | 181792 | |
| Grid reference | ST260817 | |
| UTM reference | 30U 495339 5708787 | |
| what3words | sketching.upwards.defrost | |
| FixPhrase | cringing luridness shush travesty | |
| Plus code | 9C3RGWJM+34 | |
| Altitude | 8 metres (27 feet) | |
| Sunrise (today) | 7:05 | |
| Sunset (today) | 16:48 | |
| Distance away | ||
| Distance to sea | 1.8 KMs (1.1 miles) | 
| Parish | Marshfield | W04000823 | 
|---|---|---|
| Ward | Tredegar Park and Marshfield | W05001646 | 
| Unitary Authority | Newport | W06000022 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Newport West and Islwyn | W07000105 | 
| MP | Ruth Jones | 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) | 124 | |
|---|---|---|
| Households (2011) | 50 | |
| 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) | Marshfield (Newport) | W45001201 | 
| Census output area (2021) | W00008601 | |
| Census output area (2011) | 6B2 | |
| Lower layer super output area (2021) | Newport 020D | W01001658 | 
| Lower layer super output area (2011) | Newport 020D | W01001658 | 
| Middle layer super output area (2021) | Marshfield | W02000366 | 
| Middle layer super output area (2011) | Marshfield | W02000366 | 
| Travel to work area | Cardiff | W22000024 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Dunelm, Wellfield Road, Marshfield | Semi-detached (freehold) | Oct 2024 | £345,000 | 
| Walnut House, Wellfield Road, Marshfield | Detached (freehold) | Apr 2024 | £416,000 | 
| Willow Mead, Wellfield Road, Marshfield | Detached (freehold) | Apr 2024 | £300,000 | 
| Chauen, Wellfield Road, Marshfield | Detached (freehold) | Nov 2023 | £380,000 | 
| 4 Wellfield Road, Marshfield | Semi-detached (freehold) | Oct 2022 | £367,000 | 
| Semi-detached (freehold) | Dec 2014 | £200,000 | |
| Semi-detached (freehold) | Oct 1997 | £86,950 | |
| Oak House, Wellfield Road, Marshfield | Detached (freehold) | Aug 2022 | £595,000 | 
| New build detached (freehold) | Mar 2004 | £348,230 | |
| Tyn Y Coed, Wellfield Road, Marshfield | Detached (freehold) | Nov 2020 | £415,000 | 
| Geneva House, Wellfield Road, Marshfield | Detached (freehold) | Nov 2020 | £435,000 | 
| Gold Roses, Wellfield Road, Marshfield | Detached (freehold) | Oct 2019 | £580,000 | 
| Blacktown Farm, Wellfield Road, Marshfield | Detached (freehold) | Dec 2018 | £650,000 | 
| Detached (freehold) | Sep 1996 | £215,000 |