Sustainable structures are buildings designed to minimize their environmental impact while maximizing energy efficiency and resource conservation. They often utilize eco-friendly materials, such as recycled steel or bamboo, and incorporate renewable energy sources like solar panels or wind turbines. These designs aim to reduce waste and lower carbon footprints throughout the building's lifecycle. In addition to energy efficiency, sustainable structures often focus on water conservation through systems like rainwater harvesting and greywater recycling. They may also include green roofs or walls, which provide insulation and promote biodiversity. Overall, sustainable structures contribute to healthier living environments and support the well-being of both people and the planet.