Traces of human presence from the late Bronze Age have been found in Susegana area.

In the 12th century a castle was founded on a hill by the counts of Treviso (later of Collalto), also of Lombard origin.

In 1245 counts received another hill, that of San Salvatore, by the commune of Treviso, and built here another fortress.

After the 1960s, it expanded as an industrial centre thanks to the Zanussi plant (modern Electrolux), producing home appliances.

The Castello San Salvatore was begun in 1323 by Rambaldo III di Collalto and finished by his successor Schenella V. It has a double line of wall, enclosing an area of 32,000 m2 (340,000 sq ft).