MPRs and temporary structures

Tristan I agree that the MPR supplement (thanks for the lead by the way) is clear that the building must be "permanent". I read permanent as implying fixed or non-mobile rather than an inferred or planned duration for the entire facility to exist. In the end, it would come down to an invidvidual case analysis a and consult by USGBC. I think you could design a "semi-permanent" structure that meets the LEED criteria. I don't see the life cycle issue as having a prohibitive impact necessarily. There is a brief statement at the end that I think puts some clarity to the issue: Certifying temporary buildings: The amount of time that a building or space is intended to remain standing does not affect ompliance with this MPR. (p 11). I guess the answer is "it depends."