Its walls, built from stone and clay and now thickly covered in moss, still stand to around 0.65 metres and run to a thickness of 0.8 metres. The interior measures just 4.4 metres north to south and 2.3 metres east to west, barely larger than a modest garden shed. A single narrow entrance, only 0.45 metres wide, opens from the centre of the east wall.

Structures like this are described simply as hut sites, a broad archaeological category that can encompass seasonal shelters used by herders during summer grazing, small permanent dwellings, or agricultural outbuildings. The exact date and purpose of this one in Killabunane is not recorded, but the rough construction and hillside location are consistent with booley huts, temporary stone shelters used in the Irish practice of booleying, whereby cattle and those tending them moved to upland pastures in summer. The east-facing entrance, modest but deliberate in its placement, would have caught the morning light. That the walls have survived at all, however reduced, owes something to the undisturbed character of the surrounding hill pasture, where cultivation or development has not reached to erase them.