In a commercial lease, which aspect is usually shared among tenants based on their usage?

In a commercial lease, the aspect that is typically shared among tenants based on their usage is Common Area Maintenance (CAM). CAM refers to the expenses associated with the upkeep of shared areas in a commercial property, such as lobbies, elevators, hallways, restrooms, parking lots, and landscaping.

These costs are usually proportionally divided among all tenants, often based on the square footage of each tenant's leased space relative to the total square footage of the property. This means that as tenants utilize these common areas, they each contribute to the maintenance expenses, which ensures that the common spaces are well-kept and functional for everyone who uses them.

This approach allows property owners to maintain the shared amenities while minimizing individual tenants' financial burdens, as they do not have to bear the entire cost of the common areas on their own.