Juventus Stadium, known for sponsorship reasons as the Allianz Stadium since July 2017, sometimes simply known in Italy as the Stadium, is an all-seater football stadium in the Vallette borough of Turin, Italy, and the home of Juventus F.C. The stadium was built on the site of its former ground, the Stadio delle Alpi in the latter 2000s, and is the first club-owned football modern venue in the country as well as one of the only four stadiums accredited with the UEFA Category 4, which have the highest technical level in the confederation's Stadium Infrastructure Regulations, alongside the San Siro, the Stadio Olimpico di Roma and the Stadio Olimpico Grande Torino. It was opened at the start of the 2011–12 season and, with 41,507 spectators, it is the sixth largest football stadium in Italy by seating capacity, as well the first in Piedmont.