The chamfered surround was already old when the church around it took its present form, suggesting the stone had been brought from somewhere else, perhaps salvaged from an earlier ecclesiastical building on or near the site. After alterations carried out after 1983, the doorcase was removed, and its current whereabouts remain unknown. A carved limestone fragment carrying four centuries of religious and architectural history has simply vanished from the record.

The church itself, marked on the 1842 Ordnance Survey six-inch map as 'R.C. Chapel', presents an interesting layering of periods and styles. The building is late eighteenth or early nineteenth century in general character, with a rectangular nave running on a northwest to southeast axis and side aisles separated from the nave by a series of composite columns. Round-headed windows admit light along the aisle walls, and a classical reredos, an ornamental screen or facing behind the altar, closes the interior at the liturgical east end. At the northwest end rises a three-storey embattled tower, that is, a tower finished with battlements in the manner of a fortified structure, flanked on either side by single-storey embattled porches or sacristies. The entrance elevation at the southeast is notably more ornate than the rest of the exterior, and is believed to be a later addition to the main fabric of the building.