Improvements made to leased property to meet the needs of the occupying tenant are called:

Improvements made to leased property to meet the specific needs of the occupying tenant are known as tenant improvements. These enhancements can include modifications, upgrades, or renovations that cater directly to the operational requirements of the tenant's business or personal use.

Tenant improvements are often specified in the lease agreement and can involve a wide range of modifications, such as constructing office partitions, installing specialized equipment, or upgrading facilities to ensure they align with the tenant's preferences and work processes. This approach allows the tenant to create a functional and efficient space tailored to their needs.

In contrast, other types of improvements, such as mandatory improvements, would imply a legal requirement for changes to be made regardless of tenant needs. Permissive improvements suggest alterations that could be made at the discretion of one party, while structural improvements generally pertain to changes enhancing the physical framework of a building, broadening the scope beyond tenant-specific adaptations. Thus, tenant improvements accurately delineates the nature of modifications aimed specifically to accommodate the tenant's unique requirements.