The building, recorded as a castle in earlier sources, was demolished in 1798, and the Georgian and Victorian town houses that replaced it show no outward sign that anything older ever occupied the ground.

What we know comes largely from a plaque salvaged before or during the demolition. The carved stone bore the Fitzgerald arms, the date 1606, and the letters IEG, which scholars interpret as standing for John fitzEdmund fitzGerald, a form of name typical of the Hiberno-Norman Fitzgerald family, who used the "fitz" prefix, meaning "son of", to trace descent through multiple generations. The plaque has its own separate record, suggesting it survived the destruction of the building itself, even if its current whereabouts or display are not documented here. Fleming, writing in 1903, was among the earliest to record the castle's existence, and by that point the structure had already been gone for over a century. The year of destruction, 1798, carries obvious resonance in Irish history, though whether the building was lost to deliberate clearance, neglect, or the upheaval of that period is not recorded.