A growable building is a feature seen in most SimCity games. Growable buildings will only grow on zoned tiles, and only if the demand is high enough, the population is large enough, and the desirability for the zoned area is high enough. Growable buildings differ from ploppable buildings in that growable buildings cannot be plopped by the player. After a building has reached its stage limit (3 for low density, 6 for medium density, and 8, the highest stage, for high density), it will no longer expand, unless the player rezones it into a higher density.