Casa Piumi is a historic building in Milan located at 17 Via Pantano.

Although the building was originally conceived in the 15th century, there have been many alterations to the palace over its history, starting with the neoclassical façade: on the ground floor a stone portal with a round arch enclosed between two pilasters is surmounted by a balcony supported by a shelf scroll. On the main floor the windows are decorated with simple rectilinear mouldings, while on the second floor by simple cornices.

Inside, there are two courtyards, a minor one of trapezoidal shape and the square-shaped courtyard of honour dating back to the 16th century: the courtyard has a portico with granite columns and capitals with horse heads and sculpted coats of arms.^[1][2]

• Casa Radice Fossati