The original fortress controlled the river’s fording point and served as a gateway into Ely O’Carroll, the historic territory of the O’Carroll clan. Though no trace of the castle remains above ground today, a short section of wall running parallel to the river’s eastern bank may be all that survives of the original bawn, the fortified courtyard that would have surrounded the main tower.

The castle’s demise came in 1848 when its walls finally collapsed, with locals likely carrying away the fallen stones to build houses throughout the surrounding region. Before its destruction, historical records paint a picture of its significance; in 1620, during the plantation of King’s County, Captain Francis Ackland, the High Sheriff, was granted extensive lands including ‘the castle and bawn of Ballindarragh’ comprising 30 acres that stretched from the Brosna river to the lands of Sessarabrack. The grant included 120 acres of pasture and 100 acres of bog and woodland across several townlands, held under the feudal tenure of free and common soccage.

This lost stronghold represents one of many casualties of time in Ireland’s landscape, where centuries of conflict, neglect, and practical reuse of building materials have erased countless medieval structures. The site at Ballindarra serves as a reminder that even the most formidable fortifications can vanish almost entirely, leaving only documentary evidence and the occasional fragment of wall to hint at their former importance in controlling the movement of people and goods through medieval Ireland.