Lighting design plays a crucial role in the circular economy, as it can greatly impact a building's energy efficiency and overall sustainability. From LED lights that can be easily recycled, to natural lighting solutions that reduce the need for artificial light, architects and lighting designers are finding innovative ways to integrate circular principles into their designs. One example is the use of dynamic façade systems, which can adjust the amount of natural light entering a building based on the time of day and weather conditions, reducing the need for artificial light and energy consumption. The application of circular economy principles in lighting design not only benefits the environment, but also improves the overall functionality and aesthetics of a building.