This paper synthesizes the results and findings of the four component studies under the resurgent irrigation development assessment: the technical and institutional assessments of national and communal irrigation systems, the water resource assessment, as well as the governance components. This synthesis is structured according to the research questions posed to the component studies along the project cycle. The first two components provided technical and institutional evaluations of selected national and communal irrigation systems from Luzon to Mindanao from project identification to preparation, appraisal, and selection; to project implementation, operations maintenance, and monitoring and evaluation. The water resources component of the study assessed irrigation service areas as originally planned/designed and compared them to the actual service areas with respect to water availability, land use (including flood vulnerability), and status of irrigation facilities. The governance component, on the other hand, discussed and analyzed the governance mechanisms for the irrigation sector and the irrigation project from planning to monitoring and evaluation.