The restoration and renovation of the branch in Via Plinio of the Banca Commerciale Italiana is an interesting example of how it is possible to adapt a building of great prestige to new needs, while maintaining its characteristics and charm and organizing the internal spaces - already formerly the seat of the same banking company - as an activity that has grown both in terms of size and quality. The main problem that arose was that of preserving the building complex, which is an important presence in the historical centre, not only for the external aspect but also for the internal coherence combining the renewal of the old environments with the realization of new spaces. The result, obtained over three and a half years of carefully planned interventions to allow the simultaneous continuation of the bank's activity, was a fusion of elements that enhance the prestigious pre-existent architecture.