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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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Single Tenant - Rentable Square Footage

Wilton Deyerle
Evolve Architecture
October 18, 2012

In a single tenant office building (single-story), we are trying to calculate rentable square footage. Are building services (electrical, telecom rooms) included in the rentable square footage? The two BOMA calculations involve load factors, which we have used for multi-tenant buildings/floors, but in the past, we did not use load factors for single tenant.

Adam Fingret
Extreme Measures Inc.
October 18, 2012

Hi Wilton,

You should calculate Rentable Area for a single tenant building the same as if it were multi-tenant. Yes, apply all relevant common areas (both load factors). Just be careful not to "double count" any spaces.

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