The lower school (preschool through grade 5) campus is in Villa le Tavernule, in Bagno a Ripoli while the upper school (grade 6 to 12) campus is in Florence itself, Villa Torri di Gattaia.
In 1980 it moved to the present site of the Junior School, Villa le Tavernule, about 10km from the center of Florence.
In 2003, the Middle and Upper Schools moved to a separate campus, Villa Torri di Gattaia, in central Florence, to allow for the continued growth of the student body.
ISF's Junior School, Villa le Tavernule, is built around a central courtyard which gives access to offices and classrooms, an art studio, computer lab, lunchroom, science lab and the Paul Burke-Mahoney Library.
As of September 2003, the Middle and Upper Schools are housed in a separate campus, Villa Torri di Gattaia, near the Piazzale Michelangelo.