Gedebage Sub-district is targeted to become an area that synergizes in terms of education, creative economy, commercial, and government center with the concept of a technopolis city. To realize the target, schools need to be improved in terms of quantity and quality. High humidity level that cause thermal comfort in buildings cannot be achieved unless Bioclimatic Architectural approach is implemented. There are five design concepts based on Bioclimatic Architecture that can be implemented to reduce humidity in buildings: (1) building orientation, (2) openings, (3) light and thin wall material, (4) semi-outdoor space, and (5) maximizing vegetation. Application of these design parameters effectively in high school buildings will be able to reduce the high level of humidity.