The building is located in the heart of the historic center, in a central position with respect to the original perimeter of the medieval walls.
It was built by the Vincenzo Sulcis company, between 1871 and 1872 based on the design by the civic engineer Antonio Cao Pinna. This architectural feature goes back to one of the moments of maximum growth of the city, supported by the increase in mining activity.
The council chamber is particularly interesting, with decorative interventions carried out in the 1920s by Francesco Ciusa, a famous Sardinian sculptor, and Remo Branca, an illustrator and painter.
