The structure is corbelled, meaning its walls were built up in overlapping courses of stone, each layer projecting slightly inward over the one below until the courses met at the top, forming a self-supporting vault. It is a technique of considerable antiquity on the Dingle Peninsula, and the result here is a roughly sub-rectangular interior measuring just over three metres across and rising to a height of 2.75 metres.

The hut sits within an old field system at An Baile Breac, a placename that translates roughly as the speckled townland, suggesting long and varied use of this high ground. J. Cuppage documented the structure in the 1986 Corca Dhuibhne archaeological survey of the Dingle Peninsula, a landmark publication that catalogued the extraordinary density of early remains across this westernmost stretch of Ireland. Whether the hut served as seasonal shelter for people herding cattle to upland pasture, as a place of retreat for an ascetic, or as something more workaday, the notes do not say. Brandon Mountain itself carries strong associations with early Christian monasticism, named for Saint Brendan, and small corbelled cells are a recurring feature of the landscape in this part of Kerry. The proximity to an established field system suggests it was not an isolated outlier but part of a working agricultural landscape, however long ago that working ceased.