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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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Method B - Floor Common Change

Charles Shelburne
Baylor Scott & White
November 9, 2022

If Method B was used to establish a load factor, what is the protocol when the assumed original floor common changes?

Example: Original construction has a shelled floor with assumed corridor location. Tenants begin planning, to make their suite work, the corridor changes and floor common increases.

Is SF increase absorbed by the building as "ghost space"?

David Fingret
Extreme Measures Inc.
November 11, 2022

Hi Charles,

This is a good question that exposes some of the issues with Method B. First of all, there is nothing preventing you from updating the areas and reconfiguring Base Building Circulation according to the actual construction. However, if the plan is to keep Base Building Circulation as-is, which is one of the main tenets of Method B, then you will have to increase or decrease Tenant Areas and/or Tenant Ancillary Areas accordingly. All areas of the Floor must be accounted for by allocating the appropriate space classifications so there should be no "ghost space".


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