It belongs to that category of Irish ecclesiastical remains where the physical presence outlasts the written account, a foundation whose age, dedication, and precise history have yet to be formally set down in any accessible public record.

Clare is dense with early medieval church sites, many of them associated with local saints whose cults never spread far beyond their own parishes. Castletown as a placename, combining the Irish concept of a castle settlement with a townland identity, suggests a layered history of ecclesiastical and secular occupation, though without more specific documentation it is not possible to say with confidence when this particular site was founded, by whom, or to what saint or purpose it was dedicated. What can be said is that church sites of this kind, whether simple enclosures with a ruined nave or more elaborate complexes with associated burial grounds, were frequently the spiritual anchors of small rural communities for centuries, and many continued in use, as graveyards if nothing else, long after the fabric of the building itself had fallen away.