That designation, spare and unhurried, tells you something about how the mapmakers understood it: not a ruin to be explained away, but a dwelling to be acknowledged.

A cashel is a type of early Irish enclosure defined by a circular or roughly circular dry-stone wall, typically associated with early medieval settlement and farming. This particular house sits within one, pressed up against the eastern wall as though making use of it for shelter or defence. The structure itself is subrectangular, measuring roughly 4.7 metres east to west and 2.5 metres north to south internally, with irregular stone walls somewhere between one and a half and two metres thick, now surviving to only about half a metre in height. That wall thickness is notable; it suggests a building meant to endure, even if time has worn it down considerably. A second possible house site occupies the south-western corner of the same cashel, hinting that this enclosure may once have supported a small cluster of domestic life rather than a single isolated structure.