This presentation will review a case study of a MURB using detailed embodied and operational analysis for whole-building life cycle carbon. While embodied and operational carbon have been studied individually by many consultants and designers, they have rarely been combined. In addition, most carbon targets, including LEED, ZCB, and Toronto Green Standard, do not include MEP in their analysis, which has significant impact on operational carbon. The case study will look at differences in operational and embodied carbon in three different Canadian locations in order to review the alternate priorities projects may face with differing utility costs and grid emissions factors. Using EQ’s extensive experience with MURBs, a subset of popular envelope types, mechanical systems, and structural options will be evaluated to determine what simple measures each project should be incorporating into their designs, as well as how to optimize for high performance carbon targets, especially when including MEP.