We can talk about St. Anna's church only on the basis of the characteristics of its architecture since the historical data dealing with the church's earliest history are unknown. According to the characteristics of its style, St. Anna's church seems to be from the end of the 12th and the beginning of the 13th century. The church is a single nave building with a dome.

Pillars and transverse arches of the vault on three transcripts dismember its interior. Over the middle transept there's a dome conceived with regards to the domes of other single nave Romanic churches in Kotor with which St. Anna's church links according to the solutions of the western the facade, the frieze of blind arcades on the facade's, applied decorative system and so on. On the northern side the church obtained a side chapel, elongated towards the west during a later reconstruction of the church after one of the 16th or 17th century earthquakes.

Reconstructions

The western facade of the chapel is of stone from a Gothic style. During reconstructions of the church in the 17th, 18th and 19th centuries, St. Anna's church lost much of its original looks. After one of the earthquakes it lost its dome. The biggest changes of its looks occurred during the middle of the last century, including removal of both apsis and raising the walls. The facade got new wide openings. The interior got Baroque looks and the building obtained a two-sided roof.

During the last decade, the church underwent complex and extensive works with the aim of exploring its architecture, consolidation of declining walls and vaults, reconstruction of the original shapes and presentation of the total of its monumental values. At the course of these works the remains of fresco painting were discovered and preserved in the northern chapel, inside the church as well as on the western facade of St. Anna's church.

The dome was restored to the extent that enabled the data obtained during the research. For the outside shape of the drum it was not possible to find any data thus, modern material show the difference from the original parts. The apsis on the eastern side were reconstructed, as well as the original looks of the portal. St. Anna's church has its cult function again.