Head of a former archpriesthood made of 10 parishes. Rectangular nave, not vaulted (the droproits are partially from the 12th century), followed by a semi-circular choir-apse, smooth, vaulted by a cul-de-four without cord of impost. The triumphal arch is in full coat hanger. In the 14th or 15th century, a bahut (with a defense chamber) was erected on the apse, which, although sitting on a semi-circle, is polygonal.
The western façade is a bare rectangle, with a simple door under a pointed arch and an oculus. There is another ogival door to the south. The whole building is not made of regular material , but in rubble of sandstone.