|The body of the church has an original plan if compared to the setting of the religious buildings of Marche.|
The plan of this church is articulated into one nave and two side aisles.
The first is wider than the others and there raises a matronal room upon it.
The aisles are supported by ten pillars on each side; the rear prospect of the plan shows a half-annular ambulatory with three little radial apses jutting out.
The XVIII century façade has repeatedly been under repair between
the XV and the XVII century. It presents a sequence of squared windows and
shows little traces of big archs.
On the right side of the church the repaired wall of the aisle and the end of the nave with two single lancet windows catch the eye together with four bigger single lancet windows and a small bell gable on the top.
|The left side of the church is the best preserved; it keeps safe the sequence of pilaster strips, the dentil garret cornices and the hanging archs along the nave where four big single lancet windows open onto each side.|
The rear prospect presents a particularly expressive architectural event thanks to the
skilful juxtaposition of geometric and coordinate frames and to the
resulting solid structure.
The apse is actually composed by the juxtaposition and by the joint of cylindrical and polygonal volumes: at the base we find three semicircular chapels; the faceted hemicycle of the ambulatory developed into two floors and the polygonal covering of the upper apse.
Inside the temple it is evident the clear cut made by a second floor
that horizontally devides the room from the middle of the hall.
The lower floor of the church is articulated by several supports: twenty pillars of different shape that determine the aisles and the nave with ten spans; five brick pillars holding up the upper floor (and subdividing the rear half of the nave into other little aisles). Moreover there are still six little pillars leaning on a small wall and delimiting the semicyrcular ambulatory.
The pushes of the ceiling fall down to the piers and to the corresponding archs. The ceiling is formed by little barrel vaults covering the aisles, the ambulatory and the rear half of the hall.
Upon the entrance it is notable a dome vault that holds up an upper platform linking
the two matronal areas.
The archs on the sides of this vault have been plugged and so has
the arch of the fourth span.