The current building was erected in the 12th century in the Hiberno-Romanesque style[1] The site is had a earlier 6th century church founded by Saint Brendan, which was associated with a monastery he founded and at which he was buried.

The chancel arch was inserted in the 15th century, and is decorated with angels, a rosette and a mermaid carrying a mirror.

The supporting arches of the tower at the west end of the church are also decorated with 15th century heads, and the innermost order of the Romanesque doorway was also inserted at this time.

The soft sandstone structure had weathered severely, and prior conservation efforts, which did not fully address all the building's problems, as well as substantial biological growth, had compounded the deterioration.

Due to the limited resources of the dwindling congregation, American Express provided financial assistance through the organization.