| Postcode | LL17 0EX | 
|---|---|
| Post Town | St. Asaph | 
| Nearest station | Rhyl (8 km) | 
| Bus stops | HM Stanley Hospital (NW) Bishops Walk (SE) Bryn Asaph (S) Bryn Asaph (N) Ysgol Glan Clwyd (NE) | 
| Roads in this postcode | |
| Number of UPRNs | 13 View | 
| Known addresses | 1 Heol Celyn, St Asaph 2 Heol Celyn, St Asaph 3 Heol Celyn, St Asaph 4 Heol Celyn, St Asaph 5 Heol Celyn, St Asaph 6 Heol Celyn, St Asaph 7 Heol Celyn, St Asaph 8 Heol Celyn, St Asaph | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 53.253178 | |
|---|---|---|
| Longitude | -3.433656 | |
| Easting | 304448 | |
| Northing | 373867 | |
| Grid reference | SJ044738 | |
| UTM reference | 30U 471067 5900522 | |
| what3words | fells.relatives.mascots | |
| FixPhrase | crouton lunchtime species trifle | |
| Plus code | 9C5R7H38+7G | |
| Altitude | 88 metres (288 feet) | |
| Sunrise (today) | 7:11 | |
| Sunset (today) | 16:45 | |
| Distance away | ||
| Distance to sea | 5.3 KMs (3.3 miles) | 
| Parish | St. Asaph | W04000175 | 
|---|---|---|
| Ward | St Asaph East | W05001357 | 
| Unitary Authority | Denbighshire | W06000004 | 
| County | Clwyd | W11000001 | 
| Constituency (2024) | Clwyd North | W07000095 | 
| MP | Gill German | Labour | 
| Police force | North Wales | |
| Water company | Dee Valley Water | |
| NUTS/ITL 3 | Conwy and Denbighshire | |
| NUTS/ITL 2 | North Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | October 2016 | 
|---|---|
| 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 | 
| 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 town and fringe | |
| Built up area (2024) | St Asaph | W45000684 | 
| Census output area (2021) | W00001314 | |
| Census output area (2011) | 1B3 | |
| Lower layer super output area (2021) | Denbighshire 010A | W01000245 | 
| Lower layer super output area (2011) | Denbighshire 010A | W01000245 | 
| Middle layer super output area (2021) | St Asaph & Trefnant | W02000051 | 
| Middle layer super output area (2011) | St Asaph & Trefnant | W02000051 | 
| Travel to work area | Rhyl | W22000031 | 
| Average property price in Llandudno | £205,971 | 
|---|---|
| Annual change | 1.5% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 3 Heol Celyn, St Asaph | New build detached (freehold) | Nov 2021 | £510,000 | 
| 8 Heol Celyn, St Asaph | New build detached (freehold) | Aug 2021 | £554,950 | 
| 2 Heol Celyn, St Asaph | Detached (freehold) | Jul 2021 | £554,950 | 
| 5 Heol Celyn, St Asaph | New build detached (freehold) | Jun 2021 | £525,950 | 
| 1 Heol Celyn, St Asaph | New build detached (freehold) | May 2021 | £575,950 | 
| 6 Heol Celyn, St Asaph | New build detached (freehold) | Mar 2021 | £575,950 | 
| 4 Heol Celyn, St Asaph | Detached (freehold) | Mar 2021 | £489,950 | 
| 7 Heol Celyn, St Asaph | New build detached (freehold) | Feb 2021 | £559,950 |