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Adjacent Mezzanines

Katie Reinhart
Mackenzie Architects and Engineering
February 12, 2021

We have two mezzanines on a single floor plate, divided by a wall and accessed by different sets of stairs. They are currently held by one tenant with the possibility that the Boundary Area below could be demised in the future, in which case each mezzanine would go to a different tenant. Do we include the demising wall on the mezzanine in the Boundary Areas, as if it follows the tenets of Occupant Areas? Or does the Boundary Area of each mezzanine only include what is enclosed?

David Fingret
Extreme Measures Inc.
February 16, 2021

Hi Katie,

This is a good question. The standard states:

Where a Permanent or Unclassified Mezzanine is not abutting the Building Enclosure, it is measured to the inside finished surface of its enclosing walls.

Since you describe them as two separate mezzanines, I would treat them as such and measure to the inside finished surface of the wall that separates them. This way, the area will also remain the same if they should be demised in the future.


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