Our client (building owner) has a tenant interested in an 80,000 sf existing building. To accomodate the tenant's space needs as well as their requests for a LEED building, our client plans to renovate and add 70,000 sf to the existing building in phase 1. Phase 2 involves construction of a new 225,000 sf building. The same tenant will occupy 100% of the new building. There will be separate design teams (architects & engineer) for the base building and the fit-out work on each Phase. However it is likely that both the base building and fit-out will be constructed simultaneously and possibly by the same CM. We believe Core & Shell is the most appropriate rating system for both phases. Are we missing something that would preclude the project from pursuing two separate Core & Shell certifications?