The palace, which had long been home to civil magistracies and public offices, was at that time occupied by private apartments and shops and was made up of four different sections.

The judging committee, chaired by architect Guglielmo Calderini from Perugia, chose Porciatti's design, considering both the costs and the aesthetic aspect of the work.

[2] Demolition work began in the autumn of 1899, and construction, carried out by the Piero Ciabatti company from Grosseto at a total cost of 68,408 lire, commenced on 5 April 1900.

The noble floor contains the director's offices and the Provincial Council Chamber, which is decorated in Gothic Revival style and has wooden furniture designed by the architect.

[4][5] According to Quattrocchi (2006), "in a triumph of triforiums, battlements, and corbels, the Provincial Palace is a vivid and skillful medieval setting" and "a glorious urban backdrop that successfully defines, with necessary scenographic emphasis, one of the pivotal spaces in the historic center, providing the square with the monumental prominence it lacked".