The Spiegel building Ericusspitze is a high-rise in Hamburg’s HafenCity in the Brooktorkai/Ericus quarter and has been used by the Spiegel Group as its corporate headquarters since 2012. The design is by Copenhagen-based Henning Larsen Architects. The 13-story high-rise has a massive base and a gross floor area of approximately 30,000 square meters. The shape of the glass facade is intended to symbolize the frame around the 1100 Spiegel employees who work here. At night, the red glowing “Snackbar” by Verner Panton stands out in particular. Its counterpart, the Spiegel Canteen, is on display at Hamburg’s Museum für Kunst und Gewerbe. The interior of the building is organized like an atrium house, where several bridges are direct path connections. This is to promote communication between employees. The exterior single-story offices alternate with double-height open spaces and are connected by interior galleries. According to the investor, the energy and technical concept of the building should simultaneously take into account aspects of ecology, economy and social compatibility. Air conditioning and conventional radiators were omitted. The indoor climate is regulated by a naturally ventilated double facade with integrated solar shading, a heating and cooling sail on the ceiling of each office, and a concrete core activation system in the floor slab of each floor supplied by the geothermal system. These measures should result in primary energy consumption of less than 100 kilowatt hours per square meter per year.