Today, little remains of what was once a fortified residence belonging to one of the area’s noble families. The castle’s exact origins remain somewhat obscure, though the Galmoy title was associated with the Butler family, who held considerable power in medieval and early modern Kilkenny.

Historical maps provide tantalising glimpses of the castle’s gradual disappearance from the landscape. The first edition Ordnance Survey map from 1839 marked the location as ‘Lord Galmoys Castle (in ruins)’ and showed a small rectangular building measuring approximately 8 metres north to south and 4 metres east to west. These modest dimensions suggest that by the 1830s, only a fragment of the original structure survived, perhaps a tower house or a section of the castle’s walls.

By the time cartographers revised the Ordnance Survey in 1900, even these remnants had vanished. The map notation had changed to ‘Lord Galmoys Castle (Site of)’, indicating that all visible traces above ground had been lost, likely robbed for building stone or simply collapsed through neglect. While the physical castle has disappeared, its memory persists in local place names and historical records, a reminder of the aristocratic families who once controlled these lands along the River Barrow valley.