The remains form a rough rectangle or D-shape, roughly seven metres by six, and belong to no confirmed period. No one has formally visited and recorded the site, which places it in a curious category of known-but-unexamined places, logged and noted yet never stood in front of by the people doing the logging.

Drystone construction, which uses no mortar and relies entirely on the careful fitting of stones, was common across the west of Ireland for centuries and resists easy dating on form alone. What lends this particular structure a small thread of human texture is a passing reference by the antiquarian Thomas Johnson Westropp, who wrote about the area in 1911. Westropp described an "old residence" located not far from a stream and nearly opposite Roonduff, which matches the position of these remains closely enough to be considered likely the same place. Westropp was a prolific recorder of western Irish monuments in the late nineteenth and early twentieth centuries, and even a brief mention in his work places the ruin within a longer tradition of observation. About 150 metres to the north-west, a similar hut structure survives, suggesting this was not an isolated dwelling but perhaps part of a small cluster of habitation in a landscape that now reads as empty.