None of these explanations is quite incompatible with the others, and the uncertainty is itself part of what makes the structure worth attention. What is clear is that the building as it stands today is an intimate, carefully detailed piece of early eighteenth-century architecture: roughly seven and a half metres long, less than five metres wide, entered through a segmental arched doorway with rough voussoirs, those wedge-shaped stones that lock an arch together, at the west end of the north wall.

A wall plaque inside names Maurice Hussey of Cahernane as the builder, with a date of 1714, and describes the purpose as a family mortuary chapel. Barrington, writing in 1976, added the detail that the structure was raised over the grave of Colonel Maurice Hussey, while Skinner, in 1945, framed it as a conversion of earlier church remains. The earlier church on the site, a cruciform building recorded in the south-west quadrant of the graveyard on the 1848 Ordnance Survey six-inch map, is a separate monument entirely. Whatever the precise sequence of building and rebuilding, the 1714 chapel is a composed and deliberate structure. The east wall carries a narrow round-headed window with moulded corners; the west wall has a wider rectangular light with surviving holes in the sill for glazing bars. An altar occupies the east end, with low platforms to either side and wall presses, small recessed cupboards built into the masonry, in the north and south walls. The roof is a pointed vaulted form, plank-centred, with corbels in the side walls that once supported the timber centring used during its construction. Most conspicuously, the west gable rises in ornately stepped stages and carries a bellcote at its apex, giving that end of the building a tower-like presence quite out of proportion to the modest interior below.