Meeting GIBp2 and GIBp3 in mixed uUse Buildings not fully leased

Our project will certify buildings under mid rise LEED for Homes using ASHRAE 90.1 Appendex G energy modeling to demonstrate an average 10% improvement in energy efficiency. However the first floor commercial spaces will not be designed and fully leased when we would like to submit for Stage 3 ND Review. What is required of the developer for achieving both of the prerequisites (minimum energy & water efficiency), where commercial tenant spaces are not yet built out...lease language like a core and shell project OR must the future tenants actual do energy modeling and water use calculations to demonstrate compliance to the developer.