| name | heritage designation | image | status | type | date completed | date end | date start | Website | date Start construction | city | administrative división | continent | Country | latitude (°) | longitude (°) | material | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chepstow Castle | Grade I listed building |  | Reconstructed/Conserved | Fortification | 1067 - 1300 | 1685 | 1067 | website | Chepstow | Wales | Europe | United Kingdom | 51.6333351135 | -2.6666667461 | Limestone, Sandstone, Stone | Map | |
| Abergavenny Castle | Grade I listed building |  | Abandoned/Ruins | Fortification | 1087 | website | Abergavenny | Wales | Europe | United Kingdom | 51.8166656494 | -3.0166666508 | Map | ||||
| Caernarfon town walls | Grade I listed building |  | Reconstructed/Conserved | Defense | website | Caernarfon | Wales | Europe | United Kingdom | 53.1333351135 | -4.2500000000 | Limestone | Map | ||||
| Manorbier Castle | Grade I listed building |  | Reconstructed/Conserved | Fortification | 12nd century | website | Manorbier | Wales | Europe | United Kingdom | 51.6333351135 | -4.7833333015 | Limestone, Stone | Map | |||
| MoD Sealand |  | Air base | 2006 | 2004 | 1916 | website | Queensferry, Flintshire | Wales | Europe | United Kingdom | 53.2166671753 | -3.0000000000 | Map |