No century is assigned to it, no builder named, no period of occupation confirmed. It sits in the archaeological record as a kind of placeholder, acknowledged but not yet fully explained, which is itself an unusual position for any built structure to occupy.

Coolsrahra is a rural townland in Galway, and the presence of a recorded house monument there suggests the remains are considered significant enough to warrant formal protection, even if the details of who lived there, and when, remain unresolved. The classification of indeterminate date is not uncommon in Irish archaeological records, particularly for vernacular structures that left no documentary trail and whose physical remains are too degraded or ambiguous to permit confident dating. A house of this type might be a post-medieval rural dwelling, a pre-Famine cottage, or something older still. Without excavation or detailed survey, the question stays open.