A cashel is a type of early medieval stone ringfort, a circular enclosure defined by drystone walls, and this one contains within its southern interior the footprint of a rectangular dwelling whose walls still stand to around 0.8 metres. The house measures roughly 7.6 metres east to west and 3.4 metres north to south internally, modest dimensions that would have made for a tight but functional living space.

What makes the structure quietly compelling is the care with which it was built relative to its surroundings. The limestone pavement characteristic of the Burren is crossed by natural fissures called grykes, vertical cracks in the rock that in this cashel appear to have been modified at some point by human hands. The builders of the house positioned its walls so as to avoid these grykes entirely, a deliberate choice that tells archaeologists something important: the house was constructed after whatever activity shaped those grykes, and may well have been built at roughly the same time as that activity took place. The walls themselves are double-faced, meaning they have a dressed outer and inner face with fill between, and a projection of about 1.5 metres in length survives on the inner face of the south wall, its original function unclear. A possible entrance, around 0.8 metres wide, sits at the eastern end of the south wall. No date has been firmly established for the structure, and it remains classified simply as indeterminate, somewhere in the long continuum of human occupation that the Burren's stone landscape tends to obscure rather than clarify.