How is the rentable area of a floor calculated?

The rentable area of a floor is calculated to the inside finished surface of the dominant portion of the outer building walls. This measurement reflects the actual space that tenants can utilize, as it excludes structural elements such as walls and other spaces in the building that are not usable for tenants. By measuring to the inside finished surface, property managers and landlords can accurately determine the usable area available for lease, which is essential for setting rental rates and ensuring proper management of the property.

Calculating to the outer edge of the building walls would include areas that are not usable by tenants, thus inflating the rentable area measurement. Using the total height of the building is unrelated to the calculation of rentable floor area, as this metric pertains to vertical space rather than horizontal space. Lastly, determining rentable area based on the total square footage of the lot does not accurately reflect the actual usable space within the building itself, which is crucial for proper property management and tenant agreements.