The PL1-PL13 apportionment plan comprised a large area on the Sesto Fiorentino plain and involved the development of a new town.

The site’s shape—an elongated rectangle with its long sides oriented northwest/southeast—is an artifact of an ancient Roman land division. The architectural project was thematically governed by the creation of an interior walking path that traversed the entire area of the two apportionment plans; as the “backbone” of the project, the pathway was meant to evoke the characteristic layout of an ancient Tuscan “roadside borough.”

The new construction, though primarily residential, called for various functions to be integrated to reflect urban complexity with areas set aside for business, administrative offices, and accommodation facilities.