Portrunny Church and Graveyard is situated on a hill overlooking the Harbour , an inlet of Lough Ree. The church remain is a rectangular structure, of which only the North wall with an aumbry towards its East end, and the South wall survive.
The South wall has two lancet windows in round-headed embrasures towards the East end, only one of which is complete, and a destroyed and blocked doorway towards its West end. The West end of the North wall is truncated by the remaining fragment of the North wall of a house which had been vaulted over the ground floor. The church is within a small graveyard defined by masonry walls, but archaeological testing (97E0187) 50-150m to the West (Murphy 1998) revealed no archaeological features.
Source: National Library of Ireland