Child learning environments require special consideration due to students’ rapid biological, cognitive, academic, and social growth, and less mature immune systems. The current public school building portfolio is geographically diverse and spans decades of construction practices, demographic, environmental, and economic pressures. This document discusses the significance and methodologies for collecting the environmental determinants of health and energy metrics in K-12 public school buildings. To properly identify building optimization strategies for energy and health, systematic data needs to be collected to inform decision-making.