| Postcode | SA14 6AD | 
|---|---|
| Post Town | Llanelli | 
| Nearest station | Pontarddulais (7 km) | 
| Bus stops | Maes Becca (N) Maes Becca (S) Fountain Road (S) Fountain Road (NE) Toll House (N) Toll House (S) | 
| Roads in this postcode | |
| Number of UPRNs | 19 View | 
| Known addresses | Maesycoed, 19 Heol Y Plas, Llannon 1 Heol Y Plas, Llannon 23 Heol Y Plas, Llannon 25 Heol Y Plas, Llannon | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.757285 | |
|---|---|---|
| Longitude | -4.117504 | |
| Easting | 253948 | |
| Northing | 208633 | |
| Grid reference | SN539086 | |
| UTM reference | 30U 422869 5734634 | |
| what3words | landowner.earphones.hedge | |
| FixPhrase | crinkly lumping splashy tux | |
| Plus code | 9C3QQV4J+WX | |
| Altitude | 202 metres (661 feet) | |
| Sunrise (today) | 7:10 | |
| Sunset (today) | 16:52 | |
| Distance away | ||
| Distance to sea | 8.1 KMs (5 miles) | 
| Parish | Llannon | W04000537 | 
|---|---|---|
| Ward | Llannon | W05001212 | 
| Unitary Authority | Carmarthenshire | W06000010 | 
| County | Dyfed | W11000002 | 
| Constituency (2024) | Llanelli | W07000098 | 
| MP | Dame Nia Griffith | Labour | 
| 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) | 26 | |
|---|---|---|
| Households (2011) | 12 | |
| 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 village | |
| Built up area (2024) | Llannon (Carmarthenshire) | W45001003 | 
| Census output area (2021) | W00003745 | |
| Census output area (2011) | 1A2 | |
| Lower layer super output area (2021) | Carmarthenshire 015C | W01000699 | 
| Lower layer super output area (2011) | Carmarthenshire 015C | W01000699 | 
| Middle layer super output area (2021) | Llan-non, Cross Hands & Pen-y-groes | W02000156 | 
| Middle layer super output area (2011) | Llan-non, Cross Hands & Pen-y-groes | W02000156 | 
| Travel to work area | Llanelli | W22000028 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Maesycoed, 19 Heol Y Plas, Llannon | Detached (freehold) | Jan 2023 | £350,000 | 
| 25 Heol Y Plas, Llannon | Detached (freehold) | Nov 2009 | £128,000 | 
| 1 Heol Y Plas, Llannon | Terraced (freehold) | Dec 1996 | £17,500 | 
| 23 Heol Y Plas, Llannon | Detached (freehold) | Nov 1995 | £59,000 |