The site occupied an ancient alluvial terrace, used for agricultural purposes, at the confluence of two torrents the Asso and the Trove. The archaeological material found during survey suggested that the area was occupied from the 2nd century B.C. until the 4th century A.D. The presence of a religious building preceding the one that stands on the hill overlooking the archaeological area was confirmed by excavations in 2004. In 2005 the excavation was enlarged and uncovered most of the church, including the cemetery area and some outlying structures such as a kiln for pottery and bricks which was contemporary with the first church.

The latest finds (2006), as well as defining the complete plan of the main church, revealed another complex made up of smaller structures which together formed a picture of a religious complex much richer than that hypothesised and which was not limited to the pieve. The finds from within the identified rooms, the most important being a small coin hoard of the mid 6th century, indicate a complex with much historical and archaeological inerest.

The excavation concentrated on the area identified by the surveys as the richest in archaeological material (area 1000). This confirmed the existence, above an extensive Roman occupation which has yet to be defined, of an ecclesiastical complex founded between the end of the 5th and the first half of the 6th century. It survived with much restoration and internal re-organisation for the entire medieval period. It was possible to link the brick kiln found to the north of the church, datable to between the 7th and 8th centuries, to the use of the church. The church maintained its function until the beginning of the 11th century when it was completely reconstructed and its plan transformed. An analysis of the construction techniques used places it in the pre-Romanesque period, whilst its subsequent abandonment and collapse date to the 12th century.