Abstract: This approach presumes that practices like using locally sourced materials or products containing recycled content are environmentally beneficial, irrespective of the product’s manufacturing process or disposal methods. The choice and application of sustainable building materials are crucial in the design and construction of green buildings. This chapter aims to provide an overview of sustainable materials and their environmental impacts. Additionally, it explores life cycle assessment (LCA) as a methodological framework for evaluating these materials and examines the limitations of LCA in analyzing the sustainability of building materials. the Life Cycle Assessment (LCA) method was utilized to evaluate the environmental impacts of building materials in different construction systems. The study compared three types of construction systems: reinforced concrete, hotrolled steel, and light steel. Among these, the light steel system had the lowest embodied energy and global warming potential, followed by reinforced concrete and hot-rolled steel. Additionally, the constructions were assessed using the LEED certification system