[2] St. Mary's Church is located 1.2 km (¾ mile) west of Delgany, in the southern part of the Glen of the Downs.

St. Mary's Church is dated to the 11th century AD, but there is little to no evidence for this.

[3] The church was restored in 1906 and the baptismal font inside the door set into place.

St. Mary's is a nave and chancel church, with a bell-cote in the west.

The east wall has an arched window, with the south and north having opposing flat arch windows.