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Corridors which access Building Common Areas

Derek Rubinoff
Derek Rubinoff, Architect
March 30, 2012


Looking at page 22 of BOMA 1996, it looks like corridors serving Building Common Areas like the Fire Pump Room are Building Common Area rather than Floor Common Area.

I have a basement where the main corridor connects the elevator, stairs, a few tenant spaces, and some Building Common Area utility rooms. Is this corridor Floor Common Area or Building Common Area?

When is a corridor which leads to a Building Common Area not Building Common Area itself?


Adam Fingret
Extreme Measures Inc.
March 30, 2012


It's a good question, and something we deal with on a regular basis. The Standard itself is not specific about it, so you will have to use your best judgement. From a best-practices point of view, you should take the most defensible position. To that end, think about the primary purpose of that corridor. If it is serving building common area, and particularly, if the corridor must exist for the purpuose of ingress/egress, then building common area is your best bet.

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