Abstract
‘Resauro’ of historical theaters in Italy is characterized by design activities called ‘Intervento’, which is balanced with the preservation of historic monuments. This study illustrates a method of an architect to meet the new functional requirements whilst preserving the historic importance of Teatro Dante in Campi Bisenzio in Tuscany. It shows the bold alteration of the interior configuration and an addition of a new wing in modern design as well as the preservation of the main façade and the volume of auditorium. The parts to be preserved were carefully selected and the parts to be altered were clearly articulated from the old structures. The research was conducted by interviewing the architect and the close comparison of the existing and old drawings.