In a high-rise condominium, which of the following belongs exclusively to the individual owner?

The roof is a common element of the condominium structure and is not owned exclusively by any individual unit owner. Instead, it is typically maintained by the condominium association, as it serves all residents of the building and is essential for overall structural integrity.

The wall that separates two condominium units is classified as a common element as well. While owners may have rights to the interior space of their unit, the wall itself is part of the shared property that defines boundaries between units, making it a collective responsibility.

Elevators are also common elements in a condominium and are used by all residents. They are part of the shared infrastructure of the building, maintained by the condominium association, and do not belong exclusively to any individual owner.