The project “21st Century District” aims to rejuvenate underutilised and vacant spaces in Viennas 21st district by promoting eco-urbanism, enhancing green areas, and optimising existing infrastructure. The plan involves reducing sealed surfaces, improving public transport, and encouraging mixed-use developments, including cultural and residential spaces. The focus is on creating a vibrant, sustainable community by reusing and upgrading existing buildings, integrating green roofs, and providing spaces for culture, sports, and social interaction, ultimately fostering a thriving, inclusive urban environment.