It was originally a Romanesque building consisting of a rectangular nave with a semicircular apse to the east, of which nothing is preserved. The different constructions seem to have been added at different times by the diversity of heights and plants.

The façade of the west façade is preserved from that original building, although the door and the oculus were later opened. Also belonging to the Romanesque building are the walls between the chapels which preserve, at some point, the murals that must have covered the nave and which reproduce the ashlars with black lines on a white background, there are also some fragments of a later chronology. The apse and nave are covered with pointed vaults. It has a wooden heart and in one of the added spaces we find the baptismal font and the oil basin, both with wooden lids.