| Postcode | LL42 1AS | 
|---|---|
| Post Town | Barmouth | 
| Nearest station | Barmouth (0 km) | 
| Bus stops | Jubilee Road (NW) Railway Station (NE) Bryn-y-Mor (SW) Eglwys St Tudwal (S) Eglwys St Tudwal (N) Last Inn (E) | 
| Roads in this postcode | |
| Number of UPRNs | 8 View | 
| Known addresses | Glanllyn Cottage, St Annes Square, Barmouth Glanllyn, St Annes Square, Barmouth Glanywerydd Cottage, St Annes Square, Barmouth 1 Glanywerydd, St Annes Square, Barmouth 2 Glanywerydd, St Annes Square, Barmouth | 
| Main property type | Terraced | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 52.722518 | |
|---|---|---|
| Longitude | -4.054542 | |
| Easting | 261338 | |
| Northing | 315855 | |
| Grid reference | SH613158 | |
| UTM reference | 30U 428777 5841925 | |
| what3words | loudly.mulled.campsites | |
| FixPhrase | crook lumpish sheep unkind | |
| Plus code | 9C4QPWFW+25 | |
| Altitude | 22 metres (73 feet) | |
| Sunrise (today) | 7:12 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 0.2 KMs (0.1 miles) | 
| Parish | Barmouth | W04000047 | 
|---|---|---|
| Ward | Abermaw | W05001508 | 
| Unitary Authority | Gwynedd | W06000002 | 
| County | Gwynedd | W11000004 | 
| Constituency (2024) | Dwyfor Meirionnydd | W07000096 | 
| MP | Liz Saville Roberts | Plaid Cymru | 
| Police force | North Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Gwynedd | |
| NUTS/ITL 2 | North 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) | 10 | |
|---|---|---|
| Households (2011) | 5 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Larger rural Further from a major town or city | |
| Rural/urban (2011) | Rural town and fringe in a sparse setting | |
| Built up area (2024) | Barmouth | W45000827 | 
| Census output area (2021) | W00000241 | |
| Census output area (2011) | 5A3 | |
| Lower layer super output area (2021) | Gwynedd 016F | W01002004 | 
| Lower layer super output area (2011) | Gwynedd 016B | W01000049 | 
| Middle layer super output area (2021) | Barmouth & Dolgellau | W02000025 | 
| Middle layer super output area (2011) | Barmouth & Dolgellau | W02000025 | 
| Travel to work area | Tywyn and Dolgellau | W22000033 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Glanywerydd Cottage, St Annes Square, Barmouth | Detached (freehold) | Dec 2022 | £189,950 | 
| 2 Glanywerydd, St Annes Square, Barmouth | Terraced (freehold) | Nov 2016 | £135,950 | 
| Glanllyn Cottage, St Annes Square, Barmouth | Detached (freehold) | Dec 2010 | £90,000 | 
| Detached (freehold) | Nov 1999 | £40,000 | |
| Detached (freehold) | Apr 1996 | £15,000 | |
| Glanllyn, St Annes Square, Barmouth | Terraced (freehold) | Dec 2002 | £36,000 | 
| Flat (leasehold) | Jan 2000 | £30,000 | |
| Flat (leasehold) | Apr 1999 | £13,500 | |
| Terraced (freehold) | Sep 1998 | £25,500 | |
| 1 Glanywerydd, St Annes Square, Barmouth | Terraced (freehold) | Aug 1999 | £46,000 |