A common area is, in real estate or real property law, the "area which is available for use by more than one person..." The common areas are those "within a building that are available for common use by all tenants, (or) groups of tenants and their invitees." In Texas and other parts of the United States, it is "An area inside a housing development that is owned by all residents or by an overall management structure which charges each tenant for maintenance and upkeep."