The site, catalogued as LI022-087, was first documented by Westropp in the early 1900s, who noted it near Cashelmongan and traced its ownership through historical records. In 1655, the land was held by J. Lysaght, and by 1667 it had been granted to Lord Kingston, marking its transition through the tumultuous period of Cromwellian redistribution.

When the Ordnance Survey visited in 1840, they found the castle ruins already in poor condition, though still measurable. The main castle structure had been an impressive 60 feet square, roughly 18 metres, whilst the surrounding court wall, or bawn, enclosed a rectangular area measuring approximately 130 by 160 feet, or 40 by 49 metres. This defensive wall would have protected the castle’s immediate grounds and provided shelter for livestock and tenants during raids, a common feature of fortified Irish residences during the medieval and early modern periods.

By the time O’Kelly surveyed the site in 1942-3, deterioration had advanced considerably, with only boulder heaps marking where the castle once stood. Curiously, no castle appears on the Down Survey maps from 1654-7, nor is it mentioned in the Civil Survey of Limerick from the same period, suggesting it may have already fallen into disuse or been destroyed during the Confederate Wars. Today, even these modest remains have vanished; modern aerial photographs show no visible traces of the castle or bawn that once dominated this corner of rural Limerick.