Nave and chancel church, with recently restored W gable and window, and repairs to the chancel arch with a modern concrete lintel. The chancel has low walls built of large blocks, mainly granite and sandstone, with diagonal tooling on some of the sandstone blocks. The nave, wider and higher than the chancel, appears to be a later addition, with cruder stonework of rough boulders, not properly bonded to the chancel. It has a pointed W window, and round-headed windows on N and S at E end of nave. S doorway at W end of nave. E gable window destroyed. There may have been another window in the N nave wall opposite the S doorway, where there is a destroyed section of wall.

An early monastery on this site was associated with St Colman ua heEirc. In 1260 it appears as a parish church in a dispute between the Bishops of Lismore and Cashel. The church was enlarged in 1389 (Bourke).

Sweetman describes the carved base of a doorway which has been rebuilt into the upper part of the N wall of the chancel, and which may have been part of the original W doorway of the early church. He considers the chancel to be pre-Norman (hardly earlier than the 12thc.), and the nave a late Romanesque addition, with the W wall of the original church opened up to form the chancel arch. The doorway probably dates from the middle or second half of the 12thc.