In Evolution, the location of Kadic Academy is Lycée Guez de Balzac in Angoulême, France. Other than that, who knows. It is all Quantum Based. There is Speculation. Probably based on a real idea, but in our time: it will never happen. I'm Sad too.
The factory shown in both the animated and live action seasons of the show is the old Renault factory on Seguin island in Boulogne Billancourt which was built in the early 1930's, abandend in 1992 and stood empty until it was torn down in 2005. The original animated series version of Kadic Academy was fairly nearby according to the visuals, the buildings they show are Lycée Lakanal, though it would be quite a hike on foot through the sewers to get from one to the other.