Built in the middle of the 1930s the chamber of Commerce building is one of the few "public-monumental" works not to be designed by the architect Cesare Bazzani, in a city which wanted to magnify its new status of Province through the construction of locations for the new offices which were consequently established. The newborn Provincial Council for the corporate economy (then Chamber of Commerce) was at first hosted in the Pontecorvi building which overlooked Piazza Tacito (Tacito Square).
The project belonged to the engineer Angelo Guazzaroni who tried to apply the concept of modernism, very fashionable at the time and improperly called fascist architecture. A location was required that was the expression of modernism, therefore, but the result did not live up to expectations. A site to erect the building was chosen close to piazza Tacito, where the medieval city walls once stood. A stretch of that wall, which crossed via Cesare Battisti and piazza Tacito, had already been demolished in respect of the choice of the Lattes-Staderini plan, imprinted in modernity and the concept of efficiency and therefore not respectful of the preexisting historical evidence. To make room for the new building, demolition work continued which stretched as far as the area behind the church of San Francesco.
There are two facades: one, not the main one, looks onto via Cesare Battista, the other looks onto piazza Tacito. And this is the main façade, which incorporates two eagles, symbol of the period in which it was built and the coats of arms of the four main centres of the province: Terni, Narni, Orvieto, Amelia and has as hallmark a corner tower on which stands a large clock which was supposed to be seen as far away as Piazza Tacito.
The tower, the clock and the decentralized portal provoked the intervention of the Terni town council, upon approval of the project. The mayor wrote a letter contesting these “abnormalities” and suggested some modifications. That is, he asked that, on the portal at least some of the architectural motifs should be used which harmonized with the rest of the façade; that the height of the windows should be standardized between the two facades, that the tower should be highered. Suggestions which were all taken into consideration and respected.
Characteristic is the sound of the siren that announces noon.