The newly inaugurated CfP II laboratory and office building at Johannes Gutenberg University Mainz emphasizes sustainability and technical innovation, featuring advanced facilities such as a clean room, a neutron irradiation unit, and a heavy-duty assembly hall. Equipped with energy-efficient heating, ventilation, and electrical systems, the building meets the high standards required for modern research. Its carefully designed interior includes walkable cleanroom ceilings and optimal lighting solutions, ensuring a contamination-free environment for laboratory work. The versatile space accommodates specialized laboratories, flexible offices, and facilities for visiting scientists, all while addressing challenges like the precise installation of gas supply systems. Managed by the Lindner Group, CfP II represents a breakthrough in research infrastructure, fostering international scientific collaboration and promoting a functional, sustainable, and aesthetically pleasing environment.