Much research integrating Building Information Modelling (BIM) and prefabricated modular construction (PFMC) only examines BIM implementation in one isolated process, and not its effect on the project’s entirety. This hinders the formation of an overview of benefits and disadvantages when implementing BIM on multiple phases of PFMC projects. This paper identifies the benefits, disadvantages, and challenges of implementing BIM workflows in the design, manufacturing, and construction phases of PFMC projects, using an openBIM process with Revit as the main modelling tool and IFC files for interdisciplinary collaboration. Results show that BIM implementation in PFMC increases the productivity and quality of design and manufacturing processes, however costing more time to develop projects and revise geometry in BIM compared to 2D-based workflows. This information can help housing fabricators expand openBIM implementation beyond a single phase, inspiring future research on optimizing the application of openBIM workflows to all phases in PFMC project lifecycles.