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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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BOMA 2017 Inter-building area Method B

Jessica Hogue
November 6, 2020

I'm working through BOMA calcs with a client for an office building that will use the fitness center of another building in the development. Looking at the example in the BOMA 2017 guidelines, it seems like the Rentable area in column N already includes the inter-building area. Why do the areas need to be grossed up again in column O?

Thanks for the help!

David Fingret
Extreme Measures Inc.
November 9, 2020

Hi Jessica,

The Rentable Area in column N of the Enhanced Global Summary of Areas for Method B shows the rentable area of all Inter-Building Areas and Occupant Areas BEFORE the Inter-Building Areas are proportionately allocated to the Occupants who benefit from the Inter-Building Areas. The Reallocated Rentable Area column (Column O) shows the rentable areas of all the Occupants after the Inter-Building Areas have been proportionately allocated to the benefiting Occupants.


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