That phrase, indeterminate date, is doing a great deal of work. It signals that whoever catalogued this structure could not, or did not, pin it to a century, let alone a decade. It sits in the archaeological record as a shape on a map, a feature in a landscape, a building that was noticed and noted but not yet fully understood.

Cahermore is a small townland in County Clare, a county whose western reaches are dominated by the limestone karst of the Burren, where ancient field walls, ringforts, and collapsed structures emerge from thin soil with very little ceremony. Buildings in such landscapes resist easy dating. Stone was reused across generations, walls were raised and modified and abandoned without documentation, and the distinction between a medieval structure and an early modern one can depend on details that survive only in the fabric of the masonry itself. A house recorded simply as being of indeterminate date is not necessarily obscure or unimportant; it may simply be one that has not yet received the close attention needed to place it in time.