The central focus of the project is to optimize the energy and resource efficiency design for the proposed tall building: Blue Star, which is located in Chicago, as well as incorporating potential LEED credited features with it. Based on the weather analysis, some innovative energy efficient technologies are utilized in the project with the consideration of architectural function, building form, facade structure, water supply and treatment system, construct-ability etc., simultaneously having some exploration on vertical city strategies and sustainable urban design and planning ideas. Depend on the energy simulation and performance calculation, three major factors: annual energy saving rate, on-site renewable energy and water use reduction, are figured out for achieving potential LEED credited points, which can demonstrate the sustainable level of the building with a single number from certain aspect.