This review article examines the evolution and significance of sustainable green building practices within hospital structures. As healthcare facilities are among the largest consumers of energy and resources, their impact on environmental sustainability is profound. This paper synthesizes existing literature on the principles and strategies employed in designing and retrofitting hospitals to enhance sustainability. Key themes explored include energy efficiency, the integration of renewable energy technologies, water conservation strategies, and the use of sustainable materials. The article also discusses the implementation of green certifications, such as LEED (Leadership in Energy and Environmental Design), which guide healthcare facilities in their sustainability efforts. Furthermore, the paper highlights case studies of successful green hospital projects, demonstrating measurable outcomes in operational efficiency, cost savings, and improved patient health outcomes. By illustrating the multifaceted approach required for sustainable hospital design, this review emphasizes the necessity of collaboration among architects, engineers, healthcare providers, and policymakers to create environments that prioritize both patient care and environmental stewardship.

Keywords: Sustainable green, hospital building, energy efficiency, healthcare facilities, environmental impact