What makes it worth a second look is the survival of its architectural details: pointed windows in the south wall, splayed windows to the east and west, and inside, a holy water stoup still in place. Splayed windows, where the opening widens as it passes through the wall thickness, were commonly used to draw light into stone buildings while maintaining structural integrity, and their presence here speaks to a degree of craft in the original construction.

The building is identified as a Catholic church, which in an Irish context places it within a particular historical circumstance. During the Penal era, when Catholic worship was heavily restricted, congregations often gathered in simple, unadorned structures, sometimes little more than four walls and a roof. Later, as those restrictions lifted through the late eighteenth and early nineteenth centuries, more permanent Catholic churches began to appear across the countryside, frequently modest in scale but built with care. The pointed windows at Corcreeghagh suggest some Gothic influence, a style that was common in ecclesiastical building during the nineteenth century even in rural parishes. The holy water stoup, a small basin near the entrance used by worshippers to bless themselves on entering, is a detail that ties the building unmistakably to Catholic liturgical practice.