At the northern edge of a farmyard in County Kildare, a ruined church nearly fills its own graveyard, a detail that quietly signals something unusual about this place. The building is large, almost 26 metres long and over 7 metres wide, built of roughly coursed and mortared limestone rubble, and at its north-east corner a three-storey square tower projects outward, added later and not bonded into the original fabric, which is to say it was built against the existing structure rather than integrated with it. Locals once called it the "Cathedral," a name recorded in 1837 that speaks more to local memory than to formal status, and that memory may not be wrong: the church was closely tied to a religious house nearby, possibly belonging to the Knights Hospitaller, the medieval military and hospitaller order, whose ruins stand roughly 40 metres to the south-west.

By 1615, when a Royal Visitation of Dublin recorded conditions across the diocese, the church was already described as being in ruins. A second visitation, conducted by Archbishop Bulkeley in 1630, confirms it was still ruinous, though the tithes attached to it were far from negligible. Worth 120 pounds per annum, they belonged to the Dean of St. Patrick's Cathedral in Dublin, though leased at that time to one Thomas Greames. The curate on the ground, a William Pinsent, received just six pounds per annum for his trouble, a disparity that says something plainly about how such arrangements worked. The church had, between 1529 and 1534, been designated the chief prebend of the Dean of St. Patrick's, a distinction known as the Dean's Dignity, though scholars have since noted some ambiguity about whether the ruins here and the official parish church were ever actually the same building.

What survives today is a partial shell: sections of the east, south, and west walls remain, along with a three-light window of limestone ashlar in the east gable, now blocked, and several narrow lancet windows in the south wall, also blocked, one of them a later insertion. The tower at the north-east is entered through a doorway with an outward splay in its east wall, and at ground-floor level a robbed-out window once looked into the church interior. Dense ivy covers much of the remaining fabric, obscuring detail, though a window in the north wall of the tower is still visible at second-floor level. A ruined gatehouse and a possible bawn, an enclosing fortified wall or yard commonly associated with defended settlements of the period, stand roughly 60 metres to the south-south-east, suggesting this cluster of structures once formed something more coherent than the scattered remnants visible now.