The existence of the diocese of Dolia (the ancient name of Dolianova) is documented from 1089 until 1503, when it was merged into the archdiocese of Cagliari.
The church is in Pisan-Romanesque style with some Gothic elements (dating to the last construction phase, in the 13th century), and was built of sandstone.
The façade, the sides, the apse and the bell tower are decorated with pilasters and Lombard bands featuring numerous different sculptured motifs, such as geometrical patterns, human figures and mythological animals.
The interior has a nave and two aisles, divided by cruciform pilasters, some of them of the Gothic polycolumn type.
The sculpted capitals portray New Testament scenes, such as the Nativity and the Adoration of the Magi.