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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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Allocating common areas

Alex Speigel
Windmill Developments
October 26, 2016

We are developing a mixed use building with retail on the ground floor, office on the second and 9 levels of residential above. The retail has access at grade but uses the common loading dock and service corridor. The office and residential also share those elements but also share a common lobby, elevators and stairs. The entire building shares a single system for M+E. I am familiar with BOMA standards for retail and office and with Tarion standards for measuring residential, but am not sure to allocate the common areas referred to above. Would it be based on a proportional allocation based on areas? Please advise. Thanks

David Fingret
Extreme Measures Inc.
December 2, 2016

Hi Alex,

We recommend using the BOMA mixed-use standard for this project. The mixed-use standard uses MUCA (Mixed Use Common Area) to proportionately allocate common areas to each use component (retail, office, residential).


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