What term refers to portions of a shared ownership property not controlled by any one owner or tenant?

The term that refers to portions of a shared ownership property not controlled by any one owner or tenant is "common elements." In the context of condominiums or similar properties, common elements include areas and amenities that are available for use by all owners, such as hallways, swimming pools, and fitness centers. These elements are owned collectively by all unit owners, meaning that no individual has exclusive control over them; instead, they share responsibility and rights in these areas.

This concept is fundamental in understanding property ownership in shared communities, as it delineates the spaces that contribute to the overall functionality and enjoyment of the property for all owners involved. Common elements are often governed by specific rules and regulations outlined in the condominium association's bylaws, ensuring that they are maintained and used appropriately by all residents.