The church is located in a field at the top of the banks of the River Liffey, within the Castlemartin Estate. It is some distance north east of Castlemartin House and the estate farm buildings, reachable along a tree-lined avenue, and is adjoined by a small burial ground. The building is surrounded by a narrow strip of gravel, and flat paving. The church field is bounded on several sides by trees, and with a further field between it and the river, is not readily visible, nor is there a ready path for public access.
