The church originates from the 10th century and was built using ashlars and slate. It has a double aisled nave separated into four sections. The central section is the widest and the triple East end has semicircular apses. There are three Romanesque entrances: one on the western gable end and two others on the nave of the Epistle Side.
The nave is barrel vaulted while the aisles are covered by groin vaulting or simple rib vaulting. The Northern side of the transept is decorated with a blind arcade.
The western doorway is from the Renaissance period and is finished off by a bell cote from the 18th century. The eastern doorway that gives access to the church and the cloister (which no longer exists) is Romanesque. The door on the southern side is now walled up. It possesses a double round arch over plain jambs. On this side, the ancient cloister stood. It was substituted for one from the Late Gothic period in which today, only remains exists.
The majority of the sculptures are concentrated on the capitals in the windows and pillars in the nave. They are decorated with geometric and plant motifs. There are two auxiliary altars in the apsidiole sections, one on the Epistle Side and the other on the Gospel side. Both have niches for the relics.