The facade, unfinished, was to be composed of two orders and dominated by a bell tower, as well as in the church of San Michele that rises in front. At the bottom opens the portal decorated with vine shoots and zoomorphic figures in bas-relief. Above, laterally, open two mullioned windows on corded columns; and a beautiful central three-mullioned window with twin columns, made with Roman marble of recovery. Top runs a stringcourse to figured reliefs with scenes of hunting and human figures and zoomorphic.
The interior of the building has a basilican plan is divided into three naves by simple cylindrical columns with capitals with folios. The presbytery, apsed, it has much raised on the underlying crypt. Particular and very rare are the covers with times at semibotte the lateral aisles.