Minecraft wiki entry for Building_a_metropolis, associated text: Primarily a metropolis needs to have places for its citizens to live. Generally, these areas should be large, yet organized. Smaller roads, shorter buildings, more greenery, and small blocks keep the area more friendly while the opposite create a larger, busier feel. Most residential areas will keep houses spaced close together. Some areas may work best with tall apartments. A residential zone usually feels more lively if the player includes a couple of small shops in the area. Some shops can be added as part of a living space. When working with multiple players, it may work best to allow players to build their own housing.