| Postcode | SA31 1JE | 
|---|---|
| Post Town | Carmarthen | 
| Nearest station | Carmarthen (1 km) | 
| Bus stops | Belvedere Avenue (SW) Belvedere Post Box (SW) Priory Street (NE) Priory Street (SW) Llwyn Meredydd (NE) Glynderi (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 30 View | 
| Known addresses | 4 Belvedere Avenue, Carmarthen 12 Belvedere Avenue, Carmarthen 16 Belvedere Avenue, Carmarthen 26 Belvedere Avenue, Carmarthen 28 Belvedere Avenue, Carmarthen 36 Belvedere Avenue, Carmarthen 56 Belvedere Avenue, Carmarthen | 
| Main property type | Terraced | 
| Businesses | 
| Latitude | 51.863389 | |
|---|---|---|
| Longitude | -4.297593 | |
| Easting | 241891 | |
| Northing | 220808 | |
| Grid reference | SN418208 | |
| UTM reference | 30U 410650 5746639 | |
| what3words | field.tummy.levels | |
| FixPhrase | crisped lumpiness spry uncrushed | |
| Plus code | 9C3QVP72+9X | |
| Altitude | 54 metres (178 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) | 76 | |
|---|---|---|
| Households (2011) | 27 | |
| 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) | W00003432 | |
| Census output area (2011) | 8C3 | |
| Lower layer super output area (2021) | Carmarthenshire 007B | W01000638 | 
| Lower layer super output area (2011) | Carmarthenshire 007B | W01000638 | 
| 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 | 
|---|---|---|---|
| 12 Belvedere Avenue, Carmarthen | Terraced (freehold) | Aug 2025 | £120,000 | 
| Terraced (freehold) | Oct 2021 | £109,950 | |
| Terraced (freehold) | Aug 2019 | £83,000 | |
| Terraced (freehold) | Nov 2016 | £65,250 | |
| Terraced (freehold) | Feb 2008 | £71,000 | |
| 16 Belvedere Avenue, Carmarthen | Terraced (freehold) | Jan 2017 | £63,000 | 
| Terraced (freehold) | Sep 2002 | £29,000 | |
| Terraced (freehold) | Nov 1997 | £29,000 | |
| 4 Belvedere Avenue, Carmarthen | Semi-detached (freehold) | Dec 2010 | £69,500 | 
| 26 Belvedere Avenue, Carmarthen | Terraced (freehold) | Oct 2007 | £88,000 | 
| 36 Belvedere Avenue, Carmarthen | Terraced (freehold) | Mar 2006 | £64,950 | 
| 56 Belvedere Avenue, Carmarthen | Terraced (freehold) | Sep 2005 | £69,000 | 
| Terraced (freehold) | Mar 1998 | £20,000 | |
| 28 Belvedere Avenue, Carmarthen | Terraced (freehold) | Oct 2004 | £67,000 |