What makes the site particularly curious is not the enclosing wall itself but the small drystone hut tucked against it from the inside, a structure that archaeologists have never been able to fit neatly into the site's sequence. It was built up against the cashel wall rather than bonded into it, meaning whoever constructed the hut did so after the main enclosure was already standing, though precisely when, and for what purpose, remains unresolved.

The hut itself is compact, measuring just 2.25 metres by 2.1 metres internally, and when the antiquarian George Victor Du Noyer visited and drew the site in 1858, it still carried its corbelled roof intact. Corbelling is an ancient building technique in which stone courses are laid so that each projects slightly inward over the one below, eventually closing into a roof without the use of mortar or timber. By 1899, when the archaeologist R. A. S. Macalister examined the site, a narrow entrance visible in Du Noyer's earlier plan had already been blocked up, and a wider gap had been broken through the cashel wall to the south of the original main entrance. That breach was eventually restored sometime after 1951, according to a later account by Graham. The walls of the hut now stand to a maximum height of 2.3 metres, the corbelled roof long gone, but the stones themselves remain in place, layered with the decisions and interventions of each generation that passed through.