Known historically as ‘The Inche’ in the Calendar of State Papers, this rectangular limestone structure measuring 7.5 by 5.2 metres was recorded in 1574 as belonging to the Earl of Thomond, who also owned the nearby castles of Clonrawde and Clare. Though originally three or four storeys tall, time and renovation have reduced it to just its first floor, with much of its original masonry now hidden behind modern plaster and wall board from 1960s renovations.

The ground floor, despite its barrel vault, has been thoroughly modernised and repurposed into storerooms, staff dining areas and reception spaces, making its original medieval layout difficult to discern. A blocked fireplace hints at its former domestic use. The first floor retains more of its medieval character with a barrel-vaulted room featuring intriguing architectural details: the east wall steps down 0.7 metres below the vault to create a narrow ledge, whilst a line visible in the roof plaster suggests the room was once divided. Original lighting came from a segmental-headed window in the south wall, set beneath the vault with a flat lintelled rear arch and a pointed arch above. Similar pointed arches elsewhere in the walls indicate where other windows may have stood.

Perhaps the most striking feature is an ornate carved fireplace dated 1553, relocated here from Leamaneh Castle and set into the centre of the east wall; a reminder that these medieval structures often shared materials and features as fortunes changed. The absence of any original stairway confirms this tower was always part of a larger defensive complex, which included vestiges of a gatehouse and an 18th-century prison that later served as the town hall. Today, this tower house stands as a fascinating architectural puzzle, its thick limestone walls holding centuries of alterations and adaptations within the busy hotel complex.