| Code | NA954 |
| Place Entry | Olchfa, Yr/Swansea/Glamorgan/Wales |
| Notes | Swansea Lower parish
Swansea Hundred
Llangyfelach RDC (became Swansea RDC) 1894-1930
Swansea County Borough 1930-1974
Swansea City 1974-1996
City & County of Swansea 1996-present
|
| Place Name | Olchfa, Yr |
| Area2 | Swansea |
| Area4 | Glamorgan |
| Area5 | Wales |
| Grid Ref | SS6193 |
| Notes | Swansea Lower parish
Swansea Hundred
Llangyfelach RDC (became Swansea RDC) 1894-1930
Swansea County Borough 1930-1974
Swansea City 1974-1996
City & County of Swansea 1996-present
|
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