TY - JFULL AU - Armin Samarghandi and Amirreza Jafari and Mohamad Ghiasi PY - 2023/2/ TI - An Exhaustive Investigation of Green Building Certification on the Productivity and Mental and Physical Health of Buildings Occupants in Tehran, Iran T2 - International Journal of Civil and Architectural Engineering SP - 74 EP - 79 VL - 17 SN - 1307-6892 UR - https://publications.waset.org/pdf/10012931 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 193, 2023 N2 - Since individuals spend the majority of their time indoors, this immediately affects their productivity and health. An essential factor in occupational health and public health is the influence of indoor environmental quality (IEQ) in buildings on occupant welfare and productivity. Since then, empirical data have been equivocal, indicating either that the studies are inaccurate or that the research has just scratched the surface of green buildings in offices, accommodation, and hospital settings and not taken the aforementioned holistically. This study compared three green-certified buildings — a residential green building, a green hospital, and a green school — with conventional structures in Tehran, Iran by means of a questionnaire spread among those utilizing these buildings, and assessing their productivity and health rate as opposed to the time they resided, worked in conventional buildings. The results demonstrated higher scores pertaining to productivity, physical and mental wellness as a consequence of better indoor environmental quality (IEQ), natural lighting, design, and sustainability of these building against non-green buildings. In addition, ancillary matters — environmental, financial, intellectual, emotional, social, spiritual dimensions of participants — were indirectly evaluated, and the same results are produced. ER -