Nowadays, Turkey is a country largely depends on foreign country for their sources and also faced with an energy demand that continues to be above the average of world. In this content, the importance of energy efficiency in the agenda increase in terms of provide ensuring security of energy supply for Turkey. Nevertheless, the building sector, where very high levels of energy consumption continues to develop. Digital technologies provide opportunities to meet this requirement with its digital data format and operation method supporting all project stages. When remark to the importance of designing the process directly in the architecture instead of the final product, "Performance-based design" offers schematic and productive point of departure by providing maximum benefit from digital technologies and understanding that sustainability is whole factors and results. The use of digital technologies (BIM) optimizes all of the "better", "lighter", less energy, and more everything in performance-based design. The most effective role of building envelope design methods with regard to realization of energy targets is solar energy because it is easier to applicate structure than others, and at the same time the technologies that are produced in this field develop and spread rapidly. For this purpose, when the samples which the configuration depending on the angle of the sunlight for building envelopes for the maximum efficiency in energy save or gain are examined, it is determined that three methods are used. In this context, it is aimed to identify the Strong, Weaknesses, Opportunities and Threats aspects of the current building envelope design methods by SWOT analysis. Thus, how the strengths of the methods and opportunities are assessed, how the weaknesses are translated into strengths, and what can be done to remove constraints is researched. According to SWOT Analysis, the third design method has been concluded that the optimum solution in other design methods with is three potential factors and one problem. However, in all three methods, the common problem is ignoring the shadow creation situation of adjacent buildings in designs in built environment and the risk which an effective optimum solution of the probability of reaching in terms of energy. In this context, the third design method, which is determined as the most appropriate method is proposed to be used together with the Solar Envelope method, so that an optimum solution should be reached considering the potential of creating shadows on the building designed for the surrounding buildings.