When the Hussey family constructed their chantry chapel in 1710, a chantry being a private chapel endowed for the saying of masses for a family's souls, they did not quarry fresh stone for the finer details. Instead, they carefully lifted the pointed doorway, the east window, and the south window from the decaying medieval church of St. Michael of the Naul that stood nearby, and set them into their new walls. The result is a building whose carved stonework speaks of the late sixteenth century while the structure itself is early eighteenth, a quiet mismatch that rewards a second look.

The medieval church of Sancti Michaelis de Nalla had occupied an elevated position in the south quadrant of the square graveyard, but by 1710 it was evidently ruinous enough that its dressed stonework was considered fair salvage. The Hussey family of Westown House, located roughly 220 metres to the north-northwest, recorded their act of construction on a lozenge-shaped armorial plaque above the west doorway, which reads: 'This Chapel and Monument was Erected by the Honourable Counte Edward Hussey of Westoune and his Lady Madam Mable Hussey Als Barnewall for theire use and posterity the Year of Our Lord God 1710.' A recumbent slab in the floor marks the family burial vault beneath. A century later, in 1814, the Church of Ireland built a larger church probably on the site of the medieval church itself, constructing it so close that it abutted and ultimately destroyed the north wall of the Hussey chapel. That nineteenth-century church was itself demolished around 1939 to 1940, leaving the Hussey chapel as the sole standing structure.

The chapel sits within a working graveyard and can be approached from the village. The west doorway is perhaps the most rewarding detail to examine closely: the cable-moulding and punch-dressed jambs carry a sophistication that sits oddly against the modest scale of the building, and the soffit of the arch is dressed with alternating patterns comparable, according to the site record, to the medieval doorway of All Saints Church at Castleconnell in County Limerick. The east window retains its ogee-headed four-light form, its spandrels carved with trefoil motifs, and the bar holes for a former metal grille are still visible in the jambs. The north wall is entirely gone, removed during the 1814 construction work, so the interior is fully open to the sky. Naul Castle overlooks the Delvin River about 100 metres to the north, and a possible holy well known locally as Lady Well lies just 15 metres to the east-northeast of the graveyard, close enough to visit in the same stop.