The cut stone spire, the extended nave aisle, the neat chancel; all of it carries the confident stamp of nineteenth-century ecclesiastical renovation. But built into the north wall of the nave, if local knowledge is to be trusted, is a stretch of masonry that predates all of it by two centuries or more. That section of wall leans slightly outward with a gentle batter, its stonework visibly different from everything around it, and just to its east a brick relieving arch, a shallow arch inserted above a wall opening to redistribute weight, points to an earlier round of rebuilding in the eighteenth century. The church, in other words, is a series of layers wearing a single face.

The history behind those layers is pleasantly tangled. A parish church at Carrigrohane appears in the documentary record as early as 1291, referred to as the 'ecclesia de Carrigraffen', and what may have been its ruins were still visible in the north-east corner of the graveyard when the first Ordnance Survey map was made in 1842. The present site appears to have had a church since at least the early seventeenth century; a nineteenth-century report placed its construction at around 1628, and visitation records note it was 'in repair' in 1615 and considered 'good' in 1639. Charles Smith, writing in 1750, described a church 'erected upon the ruins of the old one', suggesting the rebuilding had already happened by then. Later observers were unimpressed: Samuel Lewis in 1837 called it a 'small plain edifice', and John Windele in 1844 was no more enthusiastic, recording it as 'small and unpretending'. The Victorian campaign that followed was thorough. The chancel, west end, tower and spire were added in 1851, an annexe to the nave body in 1866 to 1867, and the cut stone spire completed in 1896 to 1897. By the time Cole wrote his description in 1903, he considered it 'much improved'.

For anyone visiting, the exterior is worth examining slowly rather than at a glance. The free-standing spire to the west and the gabled entrance porch on the north give the building an appealing asymmetry, and the north wall of the nave, with its slightly different masonry texture and that subtle outward lean, rewards a closer look than the tidy Victorian surfaces elsewhere might invite.