The building sits within the south-east quadrant of a wider ecclesiastical enclosure, itself positioned on a low terrace just above the shores of Lough Gara, the land falling away gently for about fifty metres to the water's edge. That placement, elevated just enough to command a view over the lough while remaining part of a functioning graveyard, gives the ruin a presence that outlasts its own structural condition.

The church is rectangular, roughly 10.35 metres along its east-west axis and 6.3 metres across, built from large coursed sandstone blocks with walls about 0.75 metres thick. Its proportions and construction technique point to an early medieval origin, a period when Irish ecclesiastical sites were often modest in scale but carefully sited within enclosed sacred precincts. The ruin today is in poor shape. The south wall survives to a maximum height of 2.4 metres but carries a pronounced bulge along the centre of its outer face, a sign of structural movement that has not been arrested. The north and east walls, standing no higher than 1.3 metres, show evidence of rough patching and rebuilding at various points. The west wall has fared worst; only its basal courses remain intact, with displaced stones piled loosely on top. A gap at the northern end of that wall may mark where the original doorway once stood. Ivy has taken hold across much of the surviving fabric, and the whole sits within the wider Temple-Ronaun graveyard, a place that has clearly never entirely stopped being used.