Built in the late 16th century, as evidenced by a carved window head bearing the date 1594 and the initials “OH”, the structure originally served as a fortified residence for what was likely the Hogan family; Daniell Hogan is recorded as the proprietor in 1640. The three-storey rectangular tower, constructed from roughly coursed limestone with well-formed corner stones and a defensive base batter, once stood taller before its upper levels were demolished in 1741 to make way for Beechwood House, which incorporated the medieval structure as a rear projection.

By the time of the Civil Survey in 1654-6, the castle was already showing signs of decline, described as “an old castle and bawne the walls onely standing a garden plott and one thatcht house”. The bawn, a defensive wall that would have enclosed a courtyard around the tower house, now survives only as fragmentary remains about 20 metres north of the main building, with walls standing no more than 0.7 metres high, though foundation traces suggest it once extended considerably further east. The original southern entrance has been broken through to connect the tower house with the adjoining 18th-century mansion, transforming what was once a defensive doorway into a domestic passage.

Today, the ground floor of the tower house serves as a repository for architectural fragments from its more complete past, including two semi-elliptical window heads; one decorated with incised lines, the other bearing that telling date and initials carved in false relief. These stones, along with the surviving structure itself, offer tangible links to the late medieval period when tower houses dotted the Irish landscape, serving as both homes and strongholds for the landed gentry. The building stands as a physical document of Ireland’s architectural evolution, from medieval fortress to Georgian country house appendage.