The castle is located in the northern district of the town called Le Coste, defending the Treste river. The manor consists of a
dodecagonal tower, possibly from the 16th century, which has incorporated a circular tower, the Severino-Longo palace, and the church of San
Carlo Borromeo. Until the early 20th century, there was also a tower known as the "Torrione" with vertical walls lacking a
batter. An internal garden within the castle is equipped with
casemates for the defense of the marquis' palace. The predominant material used for construction is local
limestone, sometimes well squared (in the
cornerstones or in the
arches). For the
cornices,
brickwork (bricks and
tiles arranged in rows and protruding on the facade) is used. The
balconies are made of more compact limestone known as
Istrian stone. Scattered around, architectural elements in gray-green
sandstone can be admired, as seen in the marquis' palace. Investigations have uncovered urban walls and a brick water conduit adjacent to the batter of the south side of the polygonal tower. ==References==