Since the United Nations released its sustainable development agenda for 2030, many countries have begun implementing programs in aid of attaining its Sustainable Development Goals. One of the SDG goals include the advocacy of a sustainable curriculum for students and the building of environment-friendly learning institutions also termed Green Schools. In the Philippines, the design of most school buildings remained traditional. It is believed that the sluggish development in modernizing educational institutions is due to the lack of knowledge about the influence of the school environment on the academic performance and overall wellbeing of its students. There is a need to promote the Green School concept in spite of educational institutions' efforts in crafting its own standards of a sustainable school.
The goal of this research is to determine how the physical learning environment can be improved using the Green School concept and also to measure the learning environment’s effect on the wellbeing of students. Using Saint Louis University – Dr. Otto Hahn Building as a case study, assessment was done using a Green Building Checklist, EDGE Green Building Tool, and the Subjective Wellbeing Questionnaire survey. The results showed that Dr. Otto Hahn Building met the water and material saving standards but still needs to increase its overall energy efficiency to qualify as an EDGE Certified Building. On the students’ subjective wellbeing, survey revealed that majority of the 555 respondents rated Average only in subjective wellbeing but this may be improved with the development of a more responsive school wellness program and as literature indicated, the application of green building principles in the upgrading of the school learning environment.