What is the GFA threshold for mandatory BIM submissions? January 07, 2026 17:10 From 1 Oct 2025, BIM submissions are required for new projects with GFA ≥ 30,000m². Related to BIM CORENET X Related articles What is the BIM software that is accepted by CORENET X? Can multiple IFC models (e.g. from different disciplines) be submitted within each CORENET X submission? What is the IFC format supported in CORENET X submissions? Are temporary works such as ERSS for basement excavation required to be incorporated into the coordinated BIM model for CORENET X submissions? Must I encrypt the files in my submission?