Built between the 17th and 18th centuries, the palace is traditionally attributed to the architect Andrea Pagnossin, but is also ascribed to the work of Ottavio Scotti by others. It currently serves as the representative seat of Unindustria Treviso and as an exhibition space.
Palazzo Dolfin has an important white plastered facade facing the river. It features a broad central section divided into three parts by Ionic order pilasters, topped by a large denticulated pediment. On the ground floor, the rectangular portal is set within a rusticated surface, from which a mask protrudes. The noble floor contains the most significant opening centrally: a large round-arched window with a mask in the keystone and equipped with an ornate stone balustrade.
In the rooms of the noble floor of the palace, there are lavish paintings attributed to Louis Dorigny in the Hall of Festivities; interesting 18th-century decorations also adorn the Hall of Stucco.