Organizations need to change constantly for their survival and success, and project management has been extensively used to implement organizational change. However, studies show only less than 20 percent of organizational change projects actually succeed. This may indicate the lack of a valid model for project managers to successfully implement and manage organizational change projects since what is currently available is a wide range of organizational change models that neither are in a project management context nor pay adequate emphasis on the people-side of change. Under these circumstances, this paper has attempted to build an integrated change model in a project management context. To construct such a change model, we integrates widely cited change models in the organizational change field and the Transtheoretical Model (TTM) (Prochaska, DiClemente, 1984, 1994) in the individual behavior change field with the project management process groups (PMI, 2008).