Enhancing Facility Management with a BIM and IoT Integration Tool and Framework in Open Standard Environment

Integration of Building Information Modeling (BIM) with Internet of Things (IoT) technologies substantially enhances Facility Management (FM) by enabling advanced real-time monitoring and predictive maintenance. However, adoption is hindered by technical complexity, proprietary limitations, high software costs, and unclear long-term benefits. This study introduces a robust BIM–IoT integration framework using open standards (IFC, JSON), low-code programming (Node-RED), and secure cloud services. Validated through a case study of a six-storey office building, the framework integrates static BIM data with live IoT sensor data, significantly improving decision-making, operational efficiency, and proactive HVAC management. The solution addresses key interoperability, usability, and organizational barriers, particularly suitable for small-to-medium-sized office buildings.