In civil engineering, information systems are increasingly being utilized, particularly Building Information Modeling (BIM) technology. BIM is currently most prominently used in the design and construction phases, with less intensity observed in the implementation of solutions in later phases of operation and/or demolition. However, these issues mainly concern recently constructed objects, for which a digital twin was created at the design stage, greatly facilitating the decision-making process for managers to implement such solutions. In this article, the authors focus on presenting an example of using the Common Data Environment (CDE) platform for managing an existing building, for which 3D documentation was not created in earlier stages of the lifecycle. For analysis and as an attempt to implement the use of BIM technology, building D-2 located on the AGH campus was selected. Virtual documentation in the form of a "digital twin" was prepared for the selected object. The traditional and currently practiced property management plan was analyzed. Firstly, a plan for repetitive tasks was presented, including required building inspections and cyclical work performed. Subsequently, a process of action in case of a selected failure was developed. The traditional management plan was compared with the one prepared using the digital platform. The advantages and disadvantages of each solution were identified, and the validity of introducing process improvement for building administration using the selected tool was verified.