Between all the proposals that the city council in Torino turned down i would say more like 15 years. Juve were renting for stg£6m in the 90's so the council kept rejecting the club's planning applications say that we had to keep the front facade after the initial application, then they still rejected it when the facade was kept in later applications, basically because the city didn't want to forego the 6m in rent. You might be getting the 5/6 years from when there was a standoff for a while at the start of the millenium because the club was just exhausted from the city's endless bullshit.
There's a lot of bullshit like that with all the city councils who seem to want to make money out of the stadiums rather than considering them as amenities for the community, thus municiple stadiums should be break-even rather that money making machines.
Any declaration that the processes will be faster now is to be taken with a pinch of salt. Certainly i'll only believe it when i see it so i still don't expect another new stadium in the country for at least 10 years, even if somehow one of the countries hosting European Championships in the next decade were to be pulled and Italy stepped in as hosts then the stadiums would be built on the City's terms rather than the clubs, so we'd end up with running tracks and probably a swimming pool in the center circle!
