A very austere Romanesque building, featuring well-worked ashlar blocks that indicate it was built in the first half of the 12th century. A side chapel and the sacristy were later added to the southern façade of the Romanesque building, whilst a chapel and a niche were added to the northern side. The apse has a central double-arched window that is invisible from the interior due to the presence of a modern altar.

The vault of the apse and the arch of the chancel are semicircular in profile, unlike that of the nave, which was built later and is pointed, resting on a cornice.

On the south wall is the original door, which was bricked up when the current door was opened on the west façade—a structure of poorer workmanship—above which the frontispiece rises.