This study deals with present optimum building envelope design methods and designate the pros and cons in built environments while managing the solar parameters using the modern software that enables digital, performance-based design. Performance-based design process is detailed; designs based on sun rays with various methods are reviewed; and the relationship between building envelope and energy is specified. It is the objective of the study that determination of methods used to decide alternative forms to avoid excessive heat gains during the summer season while providing maximum benefit from the sun's rays during the winter season. Therefore, samples that can generate input are selected. Each sample is determined to belong to a different group of design methods and these methods are classified. As a result of the samples investigated, the advantages and disadvantages of the methods used in comparison with using the comparing method by figures and tables. Then, with the SWOT analysis method, the methods' strengths and weaknesses, opportunities and threats are identified. Accordingly, Method 3- The Solar Rays Method has a faster and easier design process than the other two methods. Shortly, it has the optimum solution in other design methods with is three potential factors and one problem. With these proposed methods, it is aimed to reach an optimum solution by considering the potential to creating shadows on the building.