All decisions made would always rely on good, timely, and correct data, Usage of CIM models in terms of Building Information Management can support all decision through data gathering, sharing, and using across all disciplines and all Life Cycle steps. It particularly significantly improves possibilities and level of life cycle costing. Experience and knowledge stored in data models of BIM, describing user requirements, best practices derived from other projects and/or research outputs will help to understand sustainability in its complexity and wholeness. It obviously means that we are facing much more than drafting in 3D only, and project participants are further challenging, what is the topic of both this paper, and further research.