The mansion was named after her husband, Prince Porcia. In 1819, a concert hall was integrated by Métivier for the "Museum", a cultural association which had acquired the mansion. In 1934, the Palais Porcia was acquired by a bank. The restoration after the destruction during World War II took place in 1950–1952.
After renovations it received a prize by the city of Munich, the Fassadenpreis der Landeshauptstadt München of 2008, for its refurbished facade.