| Postcode | LL18 5SG | 
|---|---|
| Post Town | St. Asaph, Rhyl | 
| Nearest station | Prestatyn (6 km) | 
| Bus stops | 
                       Council Houses (SW) 
Blue Lion (NW) 
Cwm Crossroads (S) 
Cwm Crossroads (N) 
                     | 
                  
| Roads in this postcode | |
| Number of UPRNs | 38 View | 
| Known addresses | 
                       Briarcot, Cwm Dyserth 
                            Burns Cottage, Cwm Dyserth 
                            Godre'r Coed, Cwm Dyserth 
                            The Fold, Cwm Dyserth 
                            Woodside, Cwm Dyserth 
                       | 
                  
| Main property type | Semi-detached | 
| Businesses | 
| Latitude | 53.285903 | |
|---|---|---|
| Longitude | -3.404014 | |
| Easting | 306497 | |
| Northing | 377468 | |
| Grid reference | SJ064774 | |
| UTM reference | 30U 473065 5904151 | |
| what3words | peachy.streaking.cling | |
| FixPhrase | crouton lunchtime sturdy wackiness | |
| Plus code | 9C5R7HPW+99 | |
| Altitude | 117 metres (384 feet) | |
| Sunrise (today) | 7:18 | |
| Sunset (today) | 16:37 | |
| Distance away | ||
| Distance to sea | 4.8 KMs (3 miles) | 
| Parish | Cwm | W04000148 | 
|---|---|---|
| Ward | Tremeirchion | W05001360 | 
| Unitary Authority | Denbighshire | W06000004 | 
| County | Clwyd | W11000001 | 
| Constituency (2024) | Clwyd East | W07000094 | 
| MP | Becky Gittins | Labour | 
| Police force | North Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Conwy and Denbighshire | |
| 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) | 36 | |
|---|---|---|
| Households (2011) | 15 | |
| Index of Multiple Deprivation (2019) | 
                     Most deprivedLeast deprived 
                   | 
                |
| Average household income (2020) | 
                       Lowest (£22,200)
                        Highest (£108,100)
                       
                     | 
                  |
| Rural/urban (2021) | Smaller rural: Further from a major town or city | |
| Rural/urban (2011) | Rural hamlet and isolated dwellings | |
| Census output area (2021) | W00001332 | |
| Census output area (2011) | 1A2 | |
| Lower layer super output area (2021) | Denbighshire 008D | W01000248 | 
| Lower layer super output area (2011) | Denbighshire 008D | W01000248 | 
| Middle layer super output area (2021) | Dyserth & Tremeirchion | W02000049 | 
| Middle layer super output area (2011) | Dyserth & Tremeirchion | W02000049 | 
| Travel to work area | Rhyl | W22000031 | 
| Average property price in Llandudno | £206,073 | 
|---|---|
| Annual change | 1.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| The Fold, Cwm Dyserth | Semi-detached (freehold) | Oct 2020 | £625,000 | 
| Semi-detached (freehold) | Mar 2006 | £470,000 | |
| Semi-detached (freehold) | Oct 2001 | £136,000 | |
| Burns Cottage, Cwm Dyserth | Detached (freehold) | Mar 2018 | £160,000 | 
| Detached (freehold) | Sep 2013 | £130,000 | |
| Woodside, Cwm Dyserth | Semi-detached (freehold) | Mar 2006 | £135,000 | 
| Godre'r Coed, Cwm Dyserth | Terraced (freehold) | Dec 2001 | £20,000 | 
| Briarcot, Cwm Dyserth | Semi-detached (freehold) | Aug 1997 | £32,500 |