The southern wall of the rectangular building is simply the cliff itself, the natural rock face pressed into service as masonry. The building measures roughly 8.5 metres north to south and 4.5 metres wide, and sits to the south of Teampall Chiaráin, an early ecclesiastical site on Inis Mór in the Aran Islands. Two further buildings of comparable character lie to the north and south-east of the same church, the three of them clustering around the old foundation like outbuildings that never quite made it into the historical record.

T. J. Westropp, the antiquarian and prolific recorder of Irish monuments, noted this group of structures in 1895. Westropp was one of the most energetic fieldworkers of his era, travelling extensively through Connacht and Munster and producing detailed observations of sites that might otherwise have gone undocumented. His note on this building is brief, but the detail about the cliff wall is arresting. There is also a possible gap in the western wall, which may indicate a doorway or simply the result of collapse and time. Whether the building was domestic, agricultural, or served some purpose connected to the adjacent church is not recorded.