This church, dating from the first half of the 17th century, s built in the style of the Renaissance, but has some Baroque elements too. The facade and the Renaissance portal are very plain. On both sides of the portal there are two windows provived with iron bars.

 Until the requisition of the bells for war purposes during the World War I and II in the belfry there were two bells made in the Venetian foundries (from the 17th and 18th century). Teh bell with the signature OPVS CASTELLIS made in the 16th century in the Venetian foundry was removed in the World War I. It was replaced by the bell made in the foundry Lapagna in Triest 1922. this bell, as well as the other one from 17th century, decorated with images of St. Fosca, the Madonna and crucifixion and provided with the Latin text SANCTA FVSCA VRSARIAE MDCLXXX (St. Fosca of Vrsar-Orsera 1680) was taken away by the Italians during the World War II. However, these bells were not used for war purposes.

Today they can be seen in the bell tower of the parish church of St. Martin.The church of St. Fosca has been recently renovated. In it there is a sacral collection containing valuable exhibits, such as the picture ''Martyrdom of St. Fosca'' dating from the 17th century. Especially attractive are the sepulchral slabs decorated with coat-of-arms and Latin texts. In front of the main altar there is the tomb of the Vrsar-Orsera priest Luka Prodanić (Luca Prodanich), Croat, who died in 1659. On the slab the clerical symbols (Chalice and host) are engraved.