A shallow circular area, roughly seven metres in diameter, is set slightly off-centre to the west of the earthwork beneath it, its edge marked by a low scarp, at most half a metre high, running from the west-southwest around to the north. That faint lip in the ground is what remains of a hut site, a place where someone once built a structure and lived or worked within it.

Hut sites of this kind are the domestic residences of early medieval Ireland, typically the homes of ordinary farming families, their circular form pressed into the landscape by low earthen or stone walls that have, over centuries, settled into something barely distinguishable from the natural contour of a hillside. What makes Crockacullion particularly interesting is the relationship between the hut and the earthwork on which it sits. The hut was not built on open ground but on top of an already-existing earthen feature, placed slightly to one side of its centre, suggesting either a deliberate re-use of an older construction or an opportunistic choice of elevated, perhaps already-cleared ground. Which came first, and what the earthwork itself originally represented, the notes do not say, and the archaeology has not yet answered clearly.