Though nothing visible remains above ground today, historical records paint a picture of what once stood here. The Down Survey map from 1655 to 1656 clearly marks this spot as a tower house, whilst the Civil Survey conducted around the same time describes it as a castle whose proprietor had died just six months before the Rebellion broke out.

Early Ordnance Survey maps provide tantalising glimpses of the structure’s original layout. A manuscript map accompanying the OS Memoranda reveals a rectangular building plan, and the First OS 6 inch map depicts it as a rectangular structure divided by an internal wall. The Down Survey also intriguingly shows a dwelling beside the castle, though scholarly debate about its purpose has since been resolved; whilst some initially believed this might have been the “large hall” mentioned in the Civil Survey, it’s now understood that this reference actually pertained to nearby Shanganagh Castle rather than Ballycorus.

Today, visitors to the site will find themselves standing in an unremarkable field with no trace of the medieval structure that once commanded this strategic position above the river valley. The castle’s complete disappearance above ground serves as a reminder of how quickly Ireland’s built heritage can vanish when left unprotected, leaving only maps and documents to tell the story of what once stood proudly on these slopes.