The structure itself is modest almost to the point of invisibility: subrectangular in plan, measuring roughly 2.6 metres by 1.6 metres internally, with walls about 0.9 metres thick. A narrow entrance, just 0.7 metres wide, faces south-east. What survives of the inner wall-face is lined at its base with upright slabs set on edge, a construction technique sometimes used to stabilise or face the inner surfaces of dry-stone walls, and the rest of the wall has collapsed and spread across much of the floor area.

What makes the site quietly arresting is not the hut alone but the system it belongs to. Around it, a network of early field walls emerges from the peat, rising on average about 0.6 metres above the boggy ground surface. These are the boundaries of a farming landscape that was abandoned, or simply overwhelmed, long before the bog fully claimed it. The Iveragh Peninsula, which forms the backbone of the Ring of Kerry, has yielded numerous such early sites, and surveys of the area have established that this kind of hut and field-wall complex is associated with early medieval or pre-medieval agricultural settlement, when communities were managing upland ground that later became unworkable as the climate shifted and blanket bog advanced. The precise date of the Teeromoyle hut has not been pinned down, but the character of the construction and its setting within a fossilised field system place it comfortably within that early tradition.

The bog that now surrounds the walls has, paradoxically, helped preserve them. Peat is slow to give up its archaeology, and the field walls protrude just enough above the surface to be traced across the ground, mapping out enclosures that once held livestock or cultivation plots. The entrance orientation to the south-east is a practical detail worth noticing: it would have caught morning light and offered some shelter from the prevailing south-westerly weather of this Atlantic-facing peninsula.