Extreme Measures Planmine™ Help Desk
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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.

FAQ & Read-Me Articles
What are as-built drawings / models?
What is CAD and BIM?
How do I resolve an area dispute?
Where can I get measurement standards publications?
BOMA Office Overview
BOMA Industrial Overview
BOMA Retail Overview
BOMA Multi-Unit Residential Overview
BOMA Gross Areas Overview
BOMA Mixed-Use Overview
IPMS for Office Overview
Alternative Methodologies
Glossary of Industry Terms

Office Condos

michele barnett
Blackney Hayes
September 6, 2012

I have a building that is a three story office multi-tenant building that is condos. It was previously measured by another firm using a modified "BOMA" measurement which it looks like they used the exterior of the perimeter walls to determine the gross measured area of each floor. I have always thought that the gross measured area was to the dominent portion not the exterior. Is this a "modified" BOMA measurement or it this due to being Condos? I am not sure on how to measure the vacant spaces of the remaining buildng to the dominant portion or to the exterior?

Adam Fingret
Extreme Measures Inc.
September 6, 2012


The term "modified BOMA" is not a term or concept that is sanctioned by BOMA. It really can refer to any alteration of the standard. Rentable Area under BOMA 96, should be measured to the dominant portion (usually window glazing) in the case of perimeter walls, and to the center of demising walls. Gross Building Area is measured to the outside of perimeter walls, but is not typically used to calculate tenant areas in a multi-tenant building.

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