So I have a total of 10 cities. 6 are small, 3 are in the middle, and 1 large. Now all 9 cities have about 100,000 give or take but right around there. Now my large city has about 300,000 and the problem is its only 35% filled and everytime I zone for more nothing grows on that land. My demand is way up there. The only mods I use it the traffic simulator, nam, and collaso (spell?). Do I need more regional growth before it grows more?