This research proposal will focus on assessing the quality of flexible learning environment, set by schools under the Lucena Diocese Educational System for A.Y. 2020-2022, with an end-goal of proposing and recommending ways of establishing HyFlex Learning environment as additional service offering for Catholic schools. Participatory action research (PAR) design with practical participatory evaluation will be used, while multiple triangulation approach as espoused by Denzin (2017) will be utilized in gathering the data. The study will be conducted in the Catholic schools owned and managed by the Diocese of Lucena that has: (1) a complete K-12 program offerings, and (2) has established a flexible learning environment within A.Y. 2020 – 2022. A total of 360 participants will be purposively selected for this research undertaking. For the gathering of quantitative data, a standardized observation tool lifted from the National Standards (2019) for Quality Online Teaching, Quality Online Programs, and Quality Online Courses will be used for this study. As to the evaluation of the HyFlex Learning Environment introduced to participating schools, the monitoring and evaluation tool of Beatty (2019) will be utilized. On the other hand, an interview protocol for the Focus Group Discussion will be prepared for the gathering of qualitative data. After data gathering, a HyFlex Learning environment will be introduced to participating schools, and its feasibility evaluated. From there, a “Three-Year HyFlex Learning Integration Plan” will be suggested.