20,000 m2 office building, located in Mexico City. In schematic design fase. No plans or drawings yet. Fully conditioned although no systems have been defined. We need preliminary and detailed energy models to achieve leed certification (LEED C&S v3), specifically EAp2 and EAc1, including LEED documentation. Work to be done in two stages: preliminary and detailed. The 20,000 don't include basements (parking). The building is not a flagship building with complex construction and systems. The geometry is simple (square tower with core to one side). The systems will probably simple as well.