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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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Common Area

Ali Kamarei
Properties Plus Limited
August 8, 2014

In a building about 68400sf, less than 30% are retail stores on the main floor. There are covered unenclosed corridors used by all the occupants and specially retail units on the main Floor. The corridors are under the roof line and used for external circulation in & out of the building. There are 3 staircases and two elevators but Base Building Circulation will not be functional and some occupants cannot access to their units without these covered corridors. Are these corridors part of the common area?

David Fingret
Extreme Measures Inc.
August 8, 2014

Hi Ali,

It can only be external circulation / common area if it is the only means of access to the occupant spaces.


Ali Kamarei
Properties Plus Limited
August 11, 2014

Hi David,

We are working towards re-measuring the whole building and I would like to be sure about "Floor common Area: and "Building Common Area" according to BOMA 2010 A and B.
I couldn't attached the floor plan here and send you an email.

Thanks in advance,

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