Beyond that bare fact, the documentary record currently offers very little. The site has been catalogued but not yet described in any publicly available form, which places it in an unusual category: acknowledged, protected in principle, but largely uncharacterised for now.

The name Ballinderreen derives from the Irish Baile an Doirín, meaning something close to "townland of the little oak grove", and the area has been settled since at least the early medieval period. Church sites in this part of south Galway frequently have roots in that era, often associated with early Christian foundations that were later rebuilt or absorbed into the post-Norman parish system. Without more specific detail it would be speculative to say more about this particular church's origins, dedication, or architectural character.