Castledermot round tower

National Monument No. 471. The lower portion of the round tower survives (H. c. 20m). It is of granite with limestone pinnings (int diam. 2.5m; wall Th 2.37m). There are five floors with medieval crenellations above two string courses, but the modern floors do not correspond to the original levels. The entrance is at ground level through a flat lintelled battered doorway. There is an arched window on the first floor, and a flat headed windows between the second and third floors. The windows at the top, and the crenelations are of sixteenth century date. It is joined to the church by a vaulted corridor with wicker centring, of fifteenth century type. (Bradley et al. 1986, vol. 2, 97-8)