On May 10, 1952, Carlos de Castro met with three other residents of the district: Nicolau Leonardo, Raul Leonardo and Ezequiel Dias Siqueira. Together they drafted a petition to the Assembléia Legislativa do Estado de São Paulo for the emancipation of the district. Taking more than a thousand signatures, but even so, they were defeated by the fact Itapevi be very near Cotia and that residents were indebted to the city. They had to wait five years for the project to be voted on again. From then and now in a spirit of emancipation throughout this region, members of the society of the time initiated the movement for autonomy in the district, causing the population to commit mass in the process. Its founders were men like himself Carlos de Castro, Americo Christianini, Cezário de Abreu, Bonifácio de Abreu, Rubens Caramez (then councilor of Cotia and who later became the first mayor of Itapevi), Raul Leonardo (the only emancipatory still alive), Jose dos Santos Novaes, Antônio Pedra Pereira and many others.