Correspondingly, the study findings show that BIM implementations can provide cost and time savings for energy analysis practices. A heuristic optimization depicts a clear picture of why it is necessary to incentivize transforming BIM to BEM for decision-making processes of retrofitting. Accordingly, 3D energy models of the Istanbul Grand Airport Project have been created. The emphasis of BIM is upon compiling information on every single aspect of a building, allowing users to access it all in a single. It’s used to plan, design and construct buildings and infrastructure.
The case study approach is used in this study. Building Information Modeling is a 3D model-based process predominantly used in the Architecture, Engineering and Construction (AEC) sector. This study explains that in practice, BIM tools provide significant opportunities for creation of Building Energy Modeling (BEM) and the outputs of BEM analysis can be readily used in selection of energy efficiency measures. This study aims to show that implementation of Building Information Modeling (BIM) for energy analysis improves the retrofit planning process. It has been realized that retrofitting existing buildings can be more beneficial in terms of time and cost compared to new construction. This perception hinders the transformation of current non-sustainable buildings into sustainable ones. It has been generally perceived that decision-making processes for implementing sustainable solutions to building elements should be in design and pre-construction phases.
