The church in Gwernesney was built in the 13th century and then rebuilt in the 15th century. In the years 1853-1854 it was renovated.
The building consists of a wide, rectangular nave, a much narrower and shorter chancel on a rectangular plan and a porch attached to the southern wall of the nave. Most of the windows are two-light and in rectangular frames, they come from the fifteenth century. In the eastern wall of the chancel there is a bifora crowned with trefoils. The west façade is decorated with a single narrow window and an ogival portal. Inside the nave there is a late medieval roof truss and fifteenth-century rood screen separating the chancel from the nave.
Website britishlistedbuildings.co.uk, Church of St Michael and All Angels A Grade I Listed Building in Llantrisant Fawr, Monmouthshire.
Website coflein.gov.uk, St Michael, Gwernesney.