Manfrin performed some modifications of the facade into a Neoclassical style with a central balustrade.
He also had the palace decorated by Giovanni Battista Mengardi, Giuseppe Zais, and the ornamental painter David Rossi.
Girolamo Manfrin became a prominent collector of books, art and natural objects.
After he died in 1802, the palace was ultimately inherited by his daughter, wife of Giovanni Battista Plattis.
[1] The adjacent gardens were aggregated to those of the Palazzo Savorgnan, to create a green public park.