No century is assigned to it, no builder named, no function beyond the broad category of domestic dwelling. That ambiguity is, in its own way, the most interesting thing about it.

Larganmore is a rural townland in Mayo, a county whose landscape holds an unusually dense layering of settlement evidence, from pre-Christian enclosures to post-Famine clearances. A house recorded without a date could belong to almost any period of that long occupation. The indeterminate classification typically arises when a structure lacks the diagnostic features, documentary references, or associated finds that would allow surveyors to place it more precisely in time. It might be the footprint of a pre-Famine dwelling, reduced to a grass-covered outline. It might be older still, its walls too robbed or overgrown to read clearly. The honest answer is that nobody has yet been able to say.