CS stand-alone building: could the GSF measurements be taken from centerline of walls? Or should it be strictly taken from the exterior faces of exterior walls? Thank you!
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Kristina Bach
VP of InnovationSustainable Investment Group
151 thumbs up
July 10, 2013 - 12:13 pm
From the official LEED Online v3 Help Content:
"Gross square footage (GSF) --- Sum of the floor areas of the spaces within the building including basements, mezzanine and intermediate-floored tiers, and penthouses with headroom height of 7.5 ft or greater. It is measured from the exterior faces of exterior walls or from the centerline of walls separating buildings, but excluding covered walkways, open roofed-over areas, porches and similar spaces, pipe trenches, exterior terraces or steps, chimneys, roof overhangs, and similar features. --- Source: ANSI/ASHRAE Standard 90.1, ASHRAE.org"
For LEED-CI, I would see that being the exterior face of the exterior walls and the centerline of any interior tenant walls. Since there are so many variations of how GSF is defined, I always send that definition around whenever I ask someone for their numbers. :)
Diana Nezamutinova
ConsultantSelf Employed
46 thumbs up
July 10, 2013 - 12:17 pm
Kristina, thank you. However, for CS projects (not CI) it seems like the only option is to measure from the exterior of the walls. Could someone please confirm? Thank you.
Kristina Bach
VP of InnovationSustainable Investment Group
151 thumbs up
July 10, 2013 - 12:19 pm
Sorry - I referenced LEED-CI as you posted this on the LEED-CI page not the LEED-CS page. You are correct that for LEED-CS buildings, it would need to go to the exterior face of the walls (assuming that it is a stand-alone building and not an addition).