Saints Peter and Paul's Church occupies a site close to a medieval Dominican convent, and that layering of centuries gives the place a quiet weight that a first glance at its crenellated tower might not immediately suggest. The tower itself is a three-stage square structure with the kind of battlemented parapet more commonly associated with defensive architecture, borrowed here for ecclesiastical effect in a style popular with Irish church builders of the mid-nineteenth century.

The church is cruciform in plan, meaning it is cross-shaped, with a single-bay nave, transepts that carry their own gabled chapel projections, and a shallow chancel. The exterior is roughcast rendered with cut-limestone surrounds to the pointed arch windows, which hold stained glass, and cut-stone string courses articulate the tower. Inside, the craftsmanship is notably careful: a carved timber gallery, a reredos, which is the decorative screen behind the altar, with crocketed triple-gable detailing, and flanking timberwork that incorporates both a shouldered doorway and a false doorway for symmetry. Marble plaques and timber-framed Stations of the Cross complete the interior. A Marian Shrine stands to the east of the building, and wrought-iron gates set between cut-limestone piers with pyramidal caps mark the entrance from the road.

The church sits well back from the road and forms part of a small cluster of buildings at Boley that includes a former national school and Boula House. The medieval convent associated with the site lies nearby, though little of it survives in visible form above ground. The ecclesiastical continuity of the location, from a Dominican foundation of the medieval period to a parish church of the 1860s, is the thread that runs quietly beneath the more legible Victorian fabric of what stands there today.