A modern office center was built on the former premises of the glass office in Gießen. The extensive area houses various building complexes that set individual architectural benchmarks. The architects of Gerhard Schymik opted for an öko skin facade in the color liquid black. Fire protection, eco-friendliness, durable design with low maintenance, and an exceptional finish were the main arguments for the choice of the material. The öko skin facade paints an interesting picture, as the concrete slats are sandblasted to varying degrees, thus promoting a heterogeneous appearance.