Located on the square with the same name, the palace was commissioned in 1606 by Pierre-Léonard Roncas, first secretary of state of the Duke of Savoy,Charles Emanuel I. It later became the seat of the Savoy administration, a sub-prefecture during the Napoleon era and, lastly, an intendance office. 

The vaults in the atrium, over the staircase and room that overlook the internal courtyard, are decorated with Italian school frescoes depicting mythological scenes and nature and with zodiac signs, in manneristic style.