As in any decent SimCity game, in SimCity BuildIt you can buy dozens of different buildings and place them wherever you want. The only requirement when placing a building is that it be connected by roads. Youll have to plan your city with care, because your citizens wont like to live near factories, for example.
If building houses for your inhabitants isnt enough in SimCity BuildIt, you also have to build parks to keep them happy, shops so they can get what they need, power sources so they can have electricity, and water tanks so they can shower, among many other things.
SimCity Build It