These enclosures, known in Irish as raths, were the standard farmstead form of early medieval Ireland, typically consisting of a raised earthen rampart enclosing a domestic area where a family would have kept their home, their animals, and their stores. Tens of thousands of them survive across the country in varying states of preservation, and Clare, with its particular mix of limestone karst and fertile lowland, holds a substantial share.

Beyond its classification and location, the specific history of the Lisbarreen example remains largely undocumented in the public record. What can be said with confidence is that raths of this kind generally date to the period between roughly the sixth and twelfth centuries, and were the homes of farming families across the social spectrum, from modest freeholders to more prosperous landowners. The earthen banks served partly as enclosures for livestock, partly as a marker of territory and status. In Clare, many such sites have survived because the land around them proved difficult to plough, or because local tradition attached enough significance to them, sometimes as fairy forts, to discourage disturbance. Whether that applies at Lisbarreen is not currently known from available sources.