The castle’s turbulent history reflects the political upheavals of medieval and early modern Ireland; it passed through various hands, from Edmund Boggott in 1587 to Captain W. Hartwell during Cromwell’s campaign in 1653. During the Williamite War, Captain Hugh Massy garrisoned the castle between the two sieges of Limerick in 1690-91, protecting it from Irish forces. By 1703, the estate had been sold to B. Burton, marking the end of the Baggot family’s centuries-long association with the property.

The castle was an impressive structure when surveyed in 1840, though by then only portions remained standing. The main wing measured 33 feet by 23 feet internally, rising three storeys with a vaulted ground floor. At its north-east corner stood a square tower, roughly 14½ by 13½ feet, which soared five storeys high and also featured ground-floor vaulting. The massive walls, nearly 7 feet thick and reaching heights of 60 feet, were constructed from well-cut limestone with carefully crafted mullions, window frames and hoods. Oak beams still spanned the building in 1840, and the castle boasted tall, clustered chimneys of elegant design; one stone that fell from a chimney bore the date 1619, likely indicating renovation work during that period. Defensive bartizans projected from the outer angles of both the main wing and turret.

Today, no trace of Baggotstown Castle remains above ground, though its memory is preserved in historical documents and illustrations. The 1657 Down Survey map depicts it as a classic tower house structure, whilst the Civil Survey of 1654-56 records that Maurice Baggott’s lands included not just the castle but also ten cabins and two mills, painting a picture of a bustling estate centre. The castle’s complete disappearance sometime after 1840 serves as a poignant reminder of how many of Ireland’s medieval fortifications have vanished from the landscape, leaving only archival records and archaeological traces to tell their stories.