The cost of the development in the Continassa area will be split between the club and the council. The new headquarters are to include football pitches, a cinema, spa and houses.
In June, the Serie A champions announced they had bought 180,000 square metres of the area from the council at a cost of 11.7 million euros (£9.9 million).
The new Juventus Stadium was opened in 2011 after being built on the site of the old Stadio Delle Alpi.
There has since been a surge in the number of fans attending games and the venue has been hailed as the model to follow in a country where most stadiums are owned by local authorities and rented to clubs.
Since moving to the new ground Juve have won two consecutive Serie A titles and are already joint top of the table with four other clubs after two matches this season.