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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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Building Efficiency

Sarah
Dar group
September 8, 2019

How can we get the efficiency percentage of the office building from the (R/U)Ratio ?

David Fingret
Extreme Measures Inc.
September 9, 2019

Hi Sarah,

I think there are different ways to look at building efficiency from an area perspective. One way is to simply divide the Rentable Area (or in some cases "Reallocated Rentable Area") by the Occupant Area. This is called the Load Factor. The resulting number can be converted to a percentage (1.25321 for example is 25.3%). This calculation may be done on an Occupant-by-Occupant basis, Floor-by-Floor basis or to the Building total. Either way, you will see the Load Factor or the ratio of common areas to Occupant Areas, which tells you something about the efficiency of the building.

Thanks,
David

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