Performance-based design is a process where information and data-analysis augment prior design experience with the goal of improving the design decision-making process. For example, building performance analyses are an integral part of the design process for energy efficient and high-performance buildings. Information and data analysis aid the investigation of design options and simultaneously assess the environmental and energy impacts of design decisions. Energy and thermal simulations, daylight studies, and solar exposure analysis are additional examples of performance-based design, where the objective is to develop an energy efficient building. Thus, buildings are designed to improve overall building performance, reduce energy consumption required for the building’s operation, and improve the comfort of the occupants. Quantifiable predictions and simulations can help in identifying strategies and methods to improve building energy efficiency and the overall building performance.