This four-storey structure, built from uncoursed greywacke and limestone, bears all the hallmarks of a late medieval tower house typical of County Louth. Though its northwest side lies in ruins, the northeast portion still rises to its full height, complete with projecting angle towers at its north and south corners. The southern tower once housed a spiral staircase, whilst the northern tower contains multiple garderobes; practical medieval toilets that emptied via chutes built into the walls.

The building’s ground floor features a barrel vault running northeast to southwest, still showing traces of its original wicker centring. Interestingly, this vault appears to have been modified over time; originally enclosed, its gable walls were later removed to convert the space into a gateway. The upper floors, which would have been wooden, have long since vanished, leaving only evidence of their former existence in the form of window openings with flat arches made from small greywacke slabs. Some windows retain their hammer-dressed limestone jambs and seats, whilst two curious carved human heads can still be spotted on the exterior northeast wall, one above a first-floor window and another higher up.

Dating to shortly after the monastery’s dissolution in 1539, this tower house was likely constructed when Sir Gerald Moore established his residence here between 1566 and 1576. Its construction mirrors other County Louth tower houses of the period, featuring characteristic elements like the semi-circular garderobe recesses corbelled with large stone slabs, sandstone quoins, and hammer-dressed limestone blocks at the building’s angles. The structure represents a fascinating transition point in Irish history, when former monastic sites were repurposed for secular use following Henry VIII’s break with Rome.