CF3 6YW is located in the Pontprennau and Old St Mellons electoral ward, within the unitary authority of Cardiff and the Welsh Parliamentary constituency of Cardiff North. The Local Health Board is Cardiff and Vale University and the police force is South Wales. This postcode has been in use since July 2021.
| Easting | 322418 |
| Northing | 182909 |
| Latitude | 51.539728 |
| Longitude | -3.120050 |
| Country | Wales |
| Postcode District | CF3 |
| Ward | Pontprennau And Old St Mellons |
|---|---|
| Constituency | Cardiff North |
39, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2025 26 SEP £405,000 |
2025 3 FEB £420,000 |
2024 9 AUG £399,999 |
2023 1 SEP £395,000 |
37, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2023 27 JAN £329,995 |
26, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2022 7 DEC £366,995 |
38, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2022 30 NOV £315,995 |
35, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2022 30 JUN £354,995 |
36, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2022 30 JUN £349,995 |
53, RHODFA LEONARD, OLD ST MELLONS, CARDIFF, CF3 6YW 2022 30 JUN £324,995 |
| Asda (Heol Pontprennau) | Pontprennau | 868m |
| Cardiff Gate (Malthouse Avenue) | Pontprennau | 875m |
| Cardiff Gate (Malthouse Avenue) | Pontprennau | 881m |
| Asda (Heol Pontprennau) | Pontprennau | 897m |
| Heol Pontprennau | Pontprennau | 933m |
| Llanishen Station | 4.4km |
| Lisvane & Thornhill Station | 4.6km |
| Heath High Level Station | 5km |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Ball Road | 17:15 | 11:00 | 1,947m |
| Willowbrook Drive | 17:00 | 11:15 | 2,312m |
| Coed Y Gores | 17:30 | 11:45 | 2,423m |
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for CF3 6YW:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL2 | East Wales |
| ITL 3 Code | Name |
| TLL22 | Cardiff and Vale of Glamorgan |
| LAU 1 Code | Name |
| W06000015 | Cardiff |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for CF3 6YW:
| Code | Name | |
|---|---|---|
| OA | W00009478 | |
| LSOA | W01001843 | Cardiff 003C |
| MSOA | W02000369 | Cardiff 003 |
| CF3 6YJ | 407m | |
| CF3 6XJ | Began Road | 742m |
| CF3 6YA | Church Road | 806m |
| CF3 6UY | Bridge Road | 857m |
| CF23 8PA | Greenacre Drive | 886m |
| CF23 8NZ | Lascelles Drive | 908m |
| CF23 8PN | Highbank | 909m |
| CF23 8PB | Gateside Close | 941m |
| CF23 8NU | Lascelles Drive | 958m |
| CF23 8NS | Burwell Close | 964m |