Jim, this is right on the edge of the boundary between residential and commercial, and it may be a coin flip, or you may have some leeway.
Bottom line, I would probably call it commercial since it's over three stories. But I have seen pu to 6 stories be called residential, particularly if it is apartments that have their own kitchens.
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David Posada
Integrated Design & LEED SpecialistSERA Architects
LEEDuser Expert
1980 thumbs up
November 14, 2011 - 1:52 am
Jim, "residential" and "commercial" can mean different things depending on the context - whether you are trying to pick the appropriate LEED Rating system, say NC vs. Homes, figuring out the appropriate zoning code, or the appropriate energy code/ standard.
Im not sure what you were referring to when you mentioned system 1 or 7, so if you need detailed help on EAc1 you may want to post on the forum for that credit. As a general answer, the commercial energy standard ASHRAE 90.1 also applies to residential buildings four stories and taller, so even an apartment building is sometimes defined as a commercial building for energy modeling.