Today, visitors to the site will find only a series of low walls, none rising more than 1.5 metres in height. Whilst most of these fragments are likely modern additions, keen observers might spot some original stonework, including one corner featuring distinctive long and short quoins; a building technique that alternates large and small stones to create a strong, decorative corner.

Historical records and maps suggest the castle originally had an L-shaped footprint, a common defensive design that allowed defenders to cover multiple approaches whilst maximising internal space. The complete destruction of the castle means we must rely on early 20th century accounts from scholars like MacCaffrey and Westropp, who documented the site when local memory of the structure was perhaps clearer than it is today.

As the administrative centre of the episcopal manor, this castle would have been a hub of medieval life; collecting rents, settling disputes, and maintaining the bishop’s authority over the surrounding lands. Its proximity to the churches at Castlemungret hints at the close relationship between religious and secular power in medieval Ireland, where bishops often wielded considerable temporal authority alongside their spiritual duties.