Improving efficiency in emergency departments can be achieved through Evidence-Based Design (EBD), which uses data and research to inform facility design and improve patient outcomes. By designing patient rooms that facilitate healing and recovery, or layouts that limit the risk of infection transmission, EBD can help reduce medical errors, infections, and falls in healthcare facilities. One effective way to improve healthcare facilities is through post-occupancy evaluations. These evaluations identify areas for improvement and create more efficient systems that reduce costs, improve patient satisfaction, and enhance the quality of care. By applying evidence-based design principles and evaluations, emergency department operations can become more effective and efficient. The problem with the research is that design criteria are important for hospital efficiency, but emergency departments are sometimes overlooked. Architects must balance patient needs with client satisfaction and cost minimization, which can lead to ED overcrowding due to financing strategies and increasing demand. The research methodology adopted a theoretical review of literature and codes, an analytical study of EBD strategies and tools, and a future quantitative assessment through an applied study and staff interviews.