The castle’s origins likely date to the 15th century when it belonged to the Keogh family, specifically through Tadhg, son of Nicol Óg and grandson of Diarmuid Mór O’Kelly. By 1585, however, the property had passed to John Moore, a government official from Athlone, whose family would maintain ownership through the turbulent decades that followed. Records show William Moore held it in 1640, whilst Colonel Garrett Moore possessed it during the 1660s.

Today, visitors to the site can trace the outlines of what was once a formidable defensive complex. The surviving south corner of the tower house still displays its protective base-batter, surrounded by substantial cairn material. The original entrance faced southeast, leading to a vaulted guard room on the northeast side, whilst a now-destroyed spiral staircase once occupied the southern angle. The tower house formed part of a larger bawn, a fortified courtyard measuring approximately 31 metres northeast to southwest and 28 metres northwest to southeast, whose walls can still be traced through foundation stones and rubble spreads about two metres wide.

Archaeological remains reveal the castle’s more extensive layout: a circular mural tower once stood at the northern angle, now reduced to a cairn roughly five metres across and a metre high. The centre of the northwest wall contains foundations of a gateway with a three-metre-wide passage extending nine metres in length. Two additional buildings once stood within the bawn walls; one measuring about 8 by 6 metres against the northeast wall, another roughly 10 by 4 metres against the southwest wall, their foundations still visible to those who know where to look.