Notre-Dame is a Romanesque, cruciform plan church with a rounded apse.

The rib-vaulted transept crossing (the square section with blunted angle stones) is supported by pendants.
The Gothic vault was doubtless preceded by a Romanesque dome.

Three narrow slits light the chancel and the semi-circular, smooth apse.

There are no exterior buttresses. The west façade was altered in the sixteenth century. The round church door is surrounded by three archivolts and has a rose window above it; the wall around it has been thickened.