The "Quadrill" project in Linz represents a milestone in modern architecture and urban development in Austria. As the tallest high-rise building outside of Vienna, the project stands not only for architectural excellence but also symbolizes the pursuit of urban innovation and sustainable development. The building will include a "Sky" restaurant, office spaces, and a hotel. In 2023, Feldhaus was awarded the contract for the 109-meter-high building, marking its first project win in Austria and delivering a custom-designed element facade.