The professional association Carmassi Studio di Architettura was formed on the 22nd of January 1997 between the architects Massimo Carmassi and Gabriella Ioli Carmassi, whom had already been working for some time. From the 1st October 2003 the Arch. Lorenzo Carmassi became part of the Association. From July 2006 the Arch. Ioli Carmassi is no longer an official member of association.