| Postcode | SA31 1ED | 
|---|---|
| Post Town | Carmarthen | 
| Nearest station | Carmarthen (1 km) | 
| Bus stops | Capel Evan Road Turn (W) Park Hall Junction (NE) Belvedere Post Box (SW) Seymour Terrace (SE) Park Hall Green (NE) Belvedere Avenue (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 24 View | 
| Known addresses | 1 Parc Yr Onen, Carmarthen 4 Parc Yr Onen, Carmarthen 8 Parc Yr Onen, Carmarthen 9 Parc Yr Onen, Carmarthen 11 Parc Yr Onen, Carmarthen 12 Parc Yr Onen, Carmarthen 19 Parc Yr Onen, Carmarthen 20 Parc Yr Onen, Carmarthen 21 Parc Yr Onen, Carmarthen | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.864484 | |
|---|---|---|
| Longitude | -4.301382 | |
| Easting | 241634 | |
| Northing | 220938 | |
| Grid reference | SN416209 | |
| UTM reference | 30U 410391 5746766 | |
| what3words | prefer.zeal.belong | |
| FixPhrase | crisped luminous squeezing unmanaged | |
| Plus code | 9C3QVM7X+QC | |
| Altitude | 78 metres (257 feet) | |
| Sunrise (today) | 7:11 | |
| Sunset (today) | 16:53 | |
| Distance away | ||
| Distance to sea | 5.5 KMs (3.4 miles) | 
| Parish | Carmarthen | W04000494 | 
|---|---|---|
| Ward | Carmarthen Town North and South | W05001183 | 
| Unitary Authority | Carmarthenshire | W06000010 | 
| County | Dyfed | W11000002 | 
| Constituency (2024) | Caerfyrddin | W07000087 | 
| MP | Ms Ann Davies | Plaid Cymru | 
| Police force | Dyfed-Powys | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | South West Wales | |
| NUTS/ITL 2 | Mid and South West Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| 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) | 55 | |
|---|---|---|
| Households (2011) | 22 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Further from a major town or city | |
| Rural/urban (2011) | Urban city and town in a sparse setting | |
| Built up area (2024) | Carmarthen | W45000937 | 
| Census output area (2021) | W00003425 | |
| Census output area (2011) | 6A3 | |
| Lower layer super output area (2021) | Carmarthenshire 007D | W01000640 | 
| Lower layer super output area (2011) | Carmarthenshire 007D | W01000640 | 
| Middle layer super output area (2021) | Carmarthen North | W02000148 | 
| Middle layer super output area (2011) | Carmarthen North | W02000148 | 
| Travel to work area | Llanelli | W22000028 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 9 Parc Yr Onen, Carmarthen | Detached (freehold) | Sep 2019 | £218,000 | 
| Detached (freehold) | Feb 2017 | £180,000 | |
| Detached (freehold) | Nov 2001 | £82,000 | |
| Detached (freehold) | Nov 1995 | £51,000 | |
| 19 Parc Yr Onen, Carmarthen | Detached (freehold) | Dec 2018 | £250,000 | 
| Detached (freehold) | Sep 1997 | £81,750 | |
| 8 Parc Yr Onen, Carmarthen | Detached (freehold) | Oct 2018 | £162,500 | 
| Detached (freehold) | Jun 2015 | £157,000 | |
| Detached (freehold) | Sep 2004 | £154,950 | |
| 20 Parc Yr Onen, Carmarthen | Detached (freehold) | Nov 2011 | £220,000 | 
| Detached (freehold) | Nov 1999 | £85,000 | |
| Detached (freehold) | Apr 1995 | £73,000 | |
| 1 Parc Yr Onen, Carmarthen | Detached (freehold) | May 2010 | £166,000 | 
| Detached (freehold) | Oct 1997 | £61,750 | |
| 11 Parc Yr Onen, Carmarthen | Detached (freehold) | May 2006 | £145,000 | 
| 21 Parc Yr Onen, Carmarthen | New build detached (freehold) | Apr 2004 | £190,000 | 
| 4 Parc Yr Onen, Carmarthen | Detached (freehold) | Sep 1999 | £71,000 | 
| Detached (freehold) | Feb 1996 | £59,950 | |
| 12 Parc Yr Onen, Carmarthen | Detached (freehold) | Aug 1999 | £64,000 |