The designation "New" in its name is itself a small historical clue, suggesting that an earlier place of worship once served the same community, and that at some point a conscious decision was made to build afresh rather than repair or adapt what already existed.

Catholic church building in rural Connacht followed a distinct rhythm shaped by decades of legal restriction and poverty. The Penal Laws, which had for much of the eighteenth century prohibited or severely curtailed Catholic worship, were gradually relaxed from the 1770s onwards, and the nineteenth century saw a substantial wave of church construction across Ireland as newly confident Catholic communities raised permanent, purpose-built buildings to replace the rudimentary mass-houses and open-air Mass rocks that had served them in harder times. A church described as "new" in Carrowbeg almost certainly belongs somewhere within that broader story of rebuilding and institutional reassertion, though the specific dates, the names of those who commissioned or built it, and the architectural details of the structure itself remain to be firmly established from primary sources.