This case study reports on the application of the OPM model to a government department serving the public. The department manages projects to build facilities such as schools, hospitals and roads. It has elements of process-oriented and project-based organizations. Projects are carried out by contractors while the organization provides oversight. The decision making is hierarchical which makes it difficult to implement all layers of OPM. However, the organization has been successful in delivering projects on time. The organization recognizes the value of using a systematic approach employing the layers of the OPM model to understand how to increase its capability to deliver more value to the public. After analysing the case study, the authors suggest incorporating some simpler elements of OPM at the lower layers of the OPM model to overcome current issues that will lay the foundation for adding more elements from the higher layers of OPM.