What would a lease for large unfinished space be called?

A lease for large unfinished space is commonly referred to as a loft lease. Loft spaces are typically characterized by their large open areas, high ceilings, and industrial characteristics, often found in former factories or warehouses. These spaces are generally leased by businesses or individuals looking for flexibility in their use.

In contrast, an office lease is typically for fully finished office spaces with designated rooms and facilities, while a commercial lease is a more general term that covers various types of business properties, which may or may not include unfinished or flexible space. A residential lease pertains to living accommodations and would not apply to a large unfinished space intended for business or commercial purposes. Thus, a loft lease correctly identifies the nature of the space as it emphasizes the unfinished and adaptable qualities often sought after in creative or commercial endeavors.