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This help desk is a free resource intended for discussion purposes only. Neither BOMA, its chapters, affiliates, or Extreme Measures Inc.® are responsible for the information, comments or opinions expressed herein. For complete information, refer to the official publications of the standards themselves.

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Floor Allocation Ratio Justification

Jodi Sherrell
Azimuth Architecture
August 14, 2019

We have a two-story office building that we are doing BOMA calcs for. The entire first floor is for a single tenant. Also, the majority of the building service areas are on the first floor. Our first-floor tenant feels that they are paying for the majority of the building services area because most of the services are on the first floor. This in turn increases the Floor Allocation Ratio and therefore, their rentable area.

How do I justify this to the first-floor tenant?

I’m using the standard Global Summary of Areas spreadsheet. But I have no idea how to justify it to them.

David Fingret
Extreme Measures Inc.
August 14, 2019

Hi Jodi,

Your tenant is incorrect. Building Service Area is proportionality allocated to all tenants in the entire building; therefore, the Building Service Area allocated to them is directly proportionate to the amount of space they occupy in the building compared to all the other tenants. Floor Allocation Ratio is only impacted by the amount of Floor Service Area on a particular floor.


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