Steel structures contribute to sustainability through several key aspects. Firstly, steel is highly recyclable, allowing for the reuse of materials at the end of a structure's life, which reduces the demand for raw resources and minimises waste. Designing steel structures with energy efficiency in mind by incorporating features like insulation and efficient HVAC systems to lower energy consumption over time. Their durability and longevity further enhance sustainability by reducing the need for frequent replacements and renovations, conserving resources. Prefabrication and modular construction techniques, often employed in steel construction, minimize onsite waste and disruption while accelerating project timelines. Moreover, the adaptability and potential for reuse of steel structures extend their lifespan and decrease the need for new construction, aligning with principles of environmental stewardship. Overall, steel structures play a vital role in promoting sustainability by fostering resource efficiency, energy conservation, and long-term environmental responsibility throughout their lifecycle.