The Civil Survey of 1654-56 records it as ‘a small castle wanting repaire’ on the lands of George Comyn, an Irish Catholic landowner of the period. Though the castle itself has long since disappeared, its memory persists in local placenames and folklore; the area is still known as the ‘castle yard’, and aerial photography from 1974 revealed what appears to be a rectangular enclosure, likely the original bawn that once protected the castle grounds.

The castle’s location can be traced through various historical sources, including its depiction on the Down Survey composite map from 1655-58. According to local accounts, when the field to the east was levelled for agricultural use, considerable amounts of masonry were uncovered at what was believed to be the castle’s original site. Rather than let this stone go to waste, resourceful locals incorporated it into farm buildings constructed roughly 170 metres to the east-northeast, giving these remnants of the old castle a second life in the agricultural landscape.

The OS Letters from the 1830s preserve a particularly dramatic piece of local lore about the castle’s demise. They recount how the old castle fell one night at the precise moment its former proprietor, a Quaker, passed away. The letters place the castle site about 126 metres east of the road running between Thurles and Clonmel, adding another layer to our understanding of this vanished structure that once commanded the gentle slopes of Ballyvadin.