The Costanzi family committees to Pietro Nobile a project for an holding from the mid-ë700. In 1840 another landowner, Daniele Caroli, the following year committees to the architect Valentino Valle to add a part of the building to the part already existing from 1817 using the same model. The facades to Piazza Piccola and at the two extremities of the building to della Muda Vecchia street present first-floor three simple openings each side, surmounted by three ocular windows memories of Palladio.
First-floor a balcony with three arch portals on an ashlar wall surface; second-floor three windows surmounted by a bas-relief and flanked by two Doric columns with capital, top-floor a row of additional windows. The rest of the building shows six Doric pilasters, a series of windows and below another series of full centre openings.