This one, attached to the north side of a chancel in Askeaton, County Limerick, is roughly ten metres high and just over ten and a half metres square, built from roughly coursed limestone rubble with a pronounced basal batter, the outward slope at the foot of a wall designed to add stability and deflect attack, running along its west, north, and east faces. Whether it served primarily as a bell tower, a defensible refuge, or something else is genuinely unclear. The large openings on the first floor, round-headed to the west and rectangular to the south and east, might be windows or might be doorways leading to a now-vanished gallery or passage. The battlements above them are of uncertain date. A modern bell-cote has since been added over the west side, which does little to resolve the original purpose.

The survey record comes from the Urban Archaeological Survey of County Limerick, compiled by John Bradley, Andrew Halpin, and Heather A. King for the Office of Public Works in 1985, with this entry compiled by Denis Power. The tower was clearly a later addition to an existing structure, built onto the chancel rather than conceived as part of the original building. Inside the chancel's round-headed north door, a taller and wider unsplayed doorway opens into the tower's south wall, and faint traces of plank centring survive there, the imprint left by the temporary timber framework used to support an arch or vault during construction. A view published in Pacata Hibernia, the early seventeenth-century account of the Elizabethan wars in Ireland, shows the building as a two-aisled structure with the tower positioned at the end of the north aisle, offering a rare external reference point for the building's earlier appearance.

Askeaton itself is a small town on the River Deel, well known for its Franciscan friary and the remains of a FitzGerald castle on a river island. This tower sits within that broader medieval landscape, though it receives considerably less attention than its neighbours. The fabric rewards close looking; the splayed loops on the ground floor, angled both internally and externally to admit light while limiting exposure, are a small but telling detail, as is the internal ledge just below the battlements. Access depends on the condition of the wider site, so it is worth checking locally before making a specific journey.