| Postcode | LL57 2UQ | 
|---|---|
| Post Town | Bangor | 
| Nearest station | Bangor (Gwynedd) (1 km) | 
| Bus stops | Home Bargains (NE) Home Bargains (SW) Tan y Graig (SW) Ffordd Penrhos (NE) Ffordd Penrhos (SW) Glan-Adda (NE) | 
| Roads in this postcode | |
| Number of UPRNs | 15 View | 
| Known addresses | 3 Allt Dewi, Bangor 4 Allt Dewi, Bangor 5 Allt Dewi, Bangor 9 Allt Dewi, Bangor 11 Allt Dewi, Bangor 12 Allt Dewi, Bangor 14 Allt Dewi, Bangor | 
| Main property type | Terraced | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 53.218324 | |
|---|---|---|
| Longitude | -4.142414 | |
| Easting | 257051 | |
| Northing | 371173 | |
| Grid reference | SH570711 | |
| UTM reference | 30U 423720 5897166 | |
| what3words | figs.hydration.baths | |
| FixPhrase | crouton lumping setup unbent | |
| Plus code | 9C5Q6V95+82 | |
| Altitude | 47 metres (153 feet) | |
| Sunrise (today) | 7:14 | |
| Sunset (today) | 16:48 | |
| Distance away | ||
| Distance to sea | 1.1 KMs (0.7 miles) | 
| Parish | Bangor | W04000046 | 
|---|---|---|
| Ward | Canol Bangor | W05001517 | 
| Unitary Authority | Gwynedd | W06000002 | 
| County | Gwynedd | W11000004 | 
| Constituency (2024) | Bangor Aberconwy | W07000083 | 
| MP | Claire Hughes | Labour | 
| 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 | April 1985 | 
|---|---|
| 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) | 23 | |
|---|---|---|
| Households (2011) | 12 | |
| 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 | |
| Built up area (2024) | Bangor | W45000697 | 
| Census output area (2021) | W00000389 | |
| Census output area (2011) | 5B3 | |
| Lower layer super output area (2021) | Gwynedd 002C | W01000075 | 
| Lower layer super output area (2011) | Gwynedd 002C | W01000075 | 
| Middle layer super output area (2021) | Bangor South | W02000011 | 
| Middle layer super output area (2011) | Bangor South | W02000011 | 
| Travel to work area | Bangor and Holyhead | W22000022 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 12 Allt Dewi, Bangor | Terraced (freehold) | Jun 2024 | £155,000 | 
| 14 Allt Dewi, Bangor | Terraced (freehold) | Dec 2022 | £228,000 | 
| Terraced (freehold) | Jan 1995 | £54,500 | |
| 5 Allt Dewi, Bangor | Terraced (freehold) | Apr 2021 | £175,000 | 
| Terraced (freehold) | Jun 2017 | £135,000 | |
| 11 Allt Dewi, Bangor | Terraced (freehold) | Jun 2007 | £125,000 | 
| Terraced (freehold) | Jul 2000 | £58,000 | |
| Terraced (freehold) | Nov 1997 | £53,000 | |
| 9 Allt Dewi, Bangor | Terraced (freehold) | Dec 2005 | £146,500 | 
| Terraced (freehold) | Mar 2005 | £125,000 | |
| 3 Allt Dewi, Bangor | Terraced (freehold) | Jun 2005 | £136,000 | 
| Terraced (freehold) | Oct 1999 | £53,500 | |
| Terraced (freehold) | Mar 1996 | £45,000 | |
| 4 Allt Dewi, Bangor | Semi-detached (freehold) | Jun 1998 | £57,950 |