This was incredibly helpful, and it will help reduce building creation for my Massive Overhaul mod, unfortunately the buildings still aren't showing up. I can post literally the entire line of code if you want, but nothing I do seems to be working. I even tried starting a brand new game just to see if I could find the buildings in the defined provinces, still nothing. *Bangs Head on Table* I can't understand why this isn't working. I even followed the directions on the building creation page of the Paradox Wiki....