What remains of this medieval parish church in County Kildare is, at this point, barely a church at all. A fragment of the east gable still reaches full height, along with the south corner of the chancel, but the division between nave and chancel that once defined the interior is no longer easily readable. What the ruins do preserve, in those surviving stretches of limestone masonry, is a record of how it was built: large roughly rectangular quoins at the corners, random courses of rectangular blocks in the lower sections, and smaller, more rounded stones above, as though the builders' access to well-dressed stone simply ran out partway up the walls.

The church was dedicated to St Bridget, the fifth-century abbess of Kildare whose cult spread across medieval Ireland and beyond. In 1592 it was granted to John Eustace of Harristown, and by 1627 a Royal Grant to Sir Maurice Eustace referred to it formally as the parish church of St Bridget, suggesting it retained some administrative standing even into the early seventeenth century. The structure itself, a nave of roughly 15.5 metres and a chancel of around 7 metres, was modest in scale. Two narrow window openings survive, one in the east gable and one in the south chancel wall near the southeast corner, both with deep rear splays, the kind of angled internal reveals that widen the spread of light inside despite the slender exterior opening. That same southeast corner also contained a small cupboard recess and a piscine recess, the latter being a shallow stone basin used for rinsing the chalice and other liturgical vessels after Mass, a detail that quietly confirms the chancel's ritual function long after the roof and most of the walls have gone. The ruins sit in the northeast sector of a graveyard, which continues in use around them.