It is widely recognized that the construction industry has become one of the most resource-intensive sectors globally, consuming significant material and energy resources annually while generating millions of tonnes of waste and CO2-emissions. This proposal addresses the urgent need to reduce construction waste within the AEC (Architecture, Engineering, and Construction) industry by integrating circular economy principles and aligning them with the sustainability goals of Stuttgart’s residents. It reimagines material usage to enhance sustainability and minimize waste. The proposal offers a solution that reflects the interests of the city’s surveyed population, aiming to create spaces governed by sustainability principles, including green urban areas, a diverse and multidimensional offering, and a foundation of climate justice.

Thus, RLEBEN proposes a new building for the city of Stuttgart based on the concept of “The Layers of Life.” This approach focuses on enhancing the quality of daily life and overall experiences while integrating ecosystem layers and services provided by nature. These layers, which include organic matter, minerals, and organisms that sustain life, contribute both directly and indirectly to human well-being and quality of life. This holistic strategy aims to create a built environment that harmonizes with nature, providing water, clean air, food, and raw materials, thereby enhancing health and well-being while reducing stress and anxiety. Additionally, spaces can be provided for insect pollination and bird habitats, translating into tangible benefits for building users in the form of materials, health, and overall well-being. RLEBEN positions itself as an element within the ecosystem, offering ecosystem services that contribute to and regulate a healthy environment. Just like nature and its ecosystems, the new building should provide provisioning, regulating, cultural and supporting services.