Built by William Hamilton during the tumultuous plantation era of the 17th century, this fortification represented the new Protestant order being imposed across Ulster. The castle featured a bawn, which was essentially a defensive courtyard wall typical of Irish plantation architecture, along with two flankers; angular defensive towers that provided covering fire along the walls.

The site sits immediately southeast of a 19th-century house and farmyard, which tells its own story of how these military structures evolved over time. When historian Davies documented the site in 1948, he noted that the two flankers had been cleverly repurposed and incorporated into the farmyard buildings, a practical example of how defensive architecture was adapted for agricultural use as the need for fortification diminished. These structures have since been removed, leaving no visible traces at ground level today.

While nothing remains to see above ground, the location serves as a reminder of Cavan’s complex plantation history. The choice of site, positioned on elevated ground overlooking the lough, would have provided strategic advantages for monitoring the surrounding countryside. Today, only historical records and archaeological surveys preserve the memory of this once-important stronghold, part of the network of castles that helped secure English and Scottish settlement in Ulster during one of Ireland’s most transformative periods.