Unlike apartments which are leased by their tenants, condominium units are owned outright. Additionally, the owners of the individual units also collectively own the common areas of the property, such as corridors/hallways, walkways, laundry rooms, etc., as well as common utilities and amenities, such as the HVAC system, elevators, and so on. Many shopping malls are industrial condominiums in which the individual retail and office spaces are owned by the businesses that occupy them while the common areas of the mall are collectively owned by all the business entities that own the individual spaces.