The given assignment involves using both qualitative and quantitative methods to collect data and information about the use of BIM in sustainable construction. It aims to understand BIM's depth and how it has benefited in reducing cost during renovations. The research will involve conducting surveys, case studies, and possibly a literature review to gather relevant data. A specific area can be selected for analysis to provide quantifiable results that demonstrate the effectiveness of BIM in reducing costs. This study's findings can contribute to the development of strategies or plans for implementing BIM in sustainable renovation projects.