Structural configuration: of Romanesque origin, the church was rebuilt in the XVI century with a gabled façade and a large stone portal surmounted by an aedicule with the stucco statue of the virgin with child.
The church, located in the lower part of the town in the "Ronco" area has wooden doors adorned with precious carvings depicting plant masks and spirals.
From the report of Bishop Niguarda of 1593 it appears that the building had been rebuilt; six years later Bishop Archinti wrote that the walls had to be whitewashed and the roof lacked the ceiling, while the presbytery was equipped with vault. The bishop Carafino in 1648 prescribed the endowments of vestments and furnishings for the punctual celebration of the mass; tasks due to the Carmelite confraternity, erected on 7 October 1604. The pious association for its own meetings probably used the room located behind the high altar.
By 1684, the decoration of the presbytery had been completed with the imposing high altar with a statue of the Virgin and Child now placed in a niche on the right wall and replaced by a 19th-century statue in coloured stucco. The beautiful vault has a fresco depicting the Glory of the Holy Spirit in a round framed by garlands of coloured stucco flowers supported by festive cherubs and four stucco medallions frescoed with Old Testament episodes alluding to the Virgin and the Prophets. The Annunciation on the triumphal arch is attributed to Giuseppe Ferradini (1750) originally from Casasco. The statues of saints Gerolamo and Rocco on the back wall, those of the Evangelists along the side walls and those of San Pietro the Martyr and San Domenico near the triumphal arch were presumably executed by 1635 by a plasterer near the Retti di Laino. Valuable are also the scagliola frontals of the side chapels, some of which (Schera and Ferradini altars) richly adorned with stuccoes and scagliolas from the mid-17th century-later beginning.