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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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Space Change of Use - Boundary Measurement

Mauricio Feldsberg
LEVY Architects
July 8, 2021

We are doing the BOMA calculation for an Office building, what happens if in the future one of the spaces is leased as a retail space? The boundary line for office is inside of the exterior wall and the boundary for retail is outside of the exterior wall. Would there be a change in RSF for the space once it changes uses?

David Fingret
Extreme Measures Inc.
July 9, 2021

Hi Mauricio,

If the building is primarily an Office Building then you should not use the Mixed-Use Standard. You are better off using the BOMA 2017 Office Standard. If you used the BOMA 2017 Office Standard then there would be no difference to the way the retail spaces in the building are measured compared to the office spaces.

Since you have posted your question to the Mixed-Use category, I will also say that thee are several variables involved which makes it difficult to give you a concrete answer without seeing the building. However, it is likely that you would have to update the Mixed-Use analysis accordingly if the Use-Components of the Mixed-Use Property were to change.


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