The article discusses how using Building Information Modeling (BIM) can help design sustainable buildings more efficiently. BIM allows different types of information to be combined in one model, making it easier to analyze a building's performance early on. By sharing information between different parties and project stages, BIM can lead to better sustainable design. The researchers suggest using open-source tools to extract specific information from a complete BIM model. Overall, BIM can play a crucial role in creating sustainable building designs by providing essential information for improved design and performance.