Local tradition holds that this was the location of the Synod of Ráith Bressail in 1111, one of the most consequential gatherings in the history of the Irish Church. That synod, convened under the reforming bishop Gille of Limerick and with the backing of the High King Toirdelbach Ua Conchobair, reorganised the Irish Church into a formal diocesan structure for the first time, dividing the island into two provinces and twenty-four sees. Whether or not the ground at Drom truly hosted those deliberations, the church standing here was certainly in active use well before the end of the medieval period; it appears in the ecclesiastical taxation records of the Diocese of Cashel in 1302.

What survives today is a nave-and-chancel church with a transept projecting from the south wall of the nave, the whole structure stretching just over thirty metres east to west. The walls are built from roughly coursed sandstone and limestone rubble, and the east gable retains a noticeable base-batter, a thickening at the foot of the wall intended to add structural stability. The east window and chancel arch have both been lost, and a piscina, the small stone basin once used for washing the communion vessels, noted in an earlier survey is no longer visible. A segmental-arched doorway in the south wall of the nave was described as destroyed in that same earlier survey, yet it still stands and serves as the main entrance into the church. The transept, reached through a pointed doorway in its west gable, retains three single-light lancet windows in its south wall. In the nineteenth century a burial vault was inserted into the transept, and it appears that the original internal connection between nave and transept was blocked at the same time, with the west doorway added or altered to provide a separate means of access.

The church sits in the southern portion of a large rectangular graveyard containing eighteenth and nineteenth century memorials, and just to the west lies an earthwork ringwork, a type of defensive enclosure typically associated with the early Anglo-Norman period. The two monuments together give the site a layered quality, with each feature quietly complicating the other.