It is designated by Cadw as a Grade I listed building[1] because it is "a fine Medieval church retaining much of exterior and interior interest".

[2] According to tradition, the church is built on a site founded in the late 6th century by Saint Brothen, reputedly one of the seven sons of the legendary Helig ap Glanawg.

[1] It was vested with the charity the Friends of Friendless Churches in 2002, who hold a 999-year lease with effect from 1 January 2005.

The plan of the church consists of a simple rectangle forming the nave and the chancel, and it has a south porch.

Behind the 15th-century altar is a reredos consisting of a curved beam supported by two medieval newel posts.