The castle appears on the Strafford map from around 1636, though curiously it’s shown on the western side of the stream rather than its actual eastern position. Today, what remains is a rectangular stone structure measuring 18.5 metres northeast to southwest and 11.5 metres northwest to southeast. The foundations and walls, now largely obscured by cairn material, show evidence of two internal divisions within the original building.

The castle’s history is tied to the tumultuous changes of 17th century Ireland. In 1641, John Mc Robert O Naughten owned the stone house along with a mill and a quarter of land at Ballycreggan, totalling 287 acres. The broader Naughten family held considerable estates in Kiltoom parish, including 1,000 acres and shares in other properties. However, the Confederate Wars and subsequent Cromwellian conquest dramatically altered the landscape of ownership. By the 1660s, the O Naughtens had lost their holdings; the Ballycreggan property was divided between the Countess of Fingal and Colonel William Legg, whilst the family’s other lands were redistributed to new owners.

Despite its ruined state, the castle continued to serve the local community well into the 20th century. According to local memory, the castle floor provided an unusual venue for dances in the early 1900s, giving this medieval structure an unexpected second life as a social gathering place. The site has been designated National Monument No. 682 and is maintained under state ownership, preserving this fragment of Roscommon’s medieval past for future generations.