These days, the design and construction industry is challenged with the question "how are architects, engineers, contractors, building owners using information technology to further automate their practices, building operation and benchmarking?" The following case study with interviews will critically evaluate the 'Integrated Project Delivery' process of the 'Q1 ThyssenKrupp Quarter' in Essen, Germany built from 2009 to 2010, and decommissioned in 2012. The Q1-Energy Concept of the ThyssenKrupp Headquarters' primary energy consumption is measured at 139.6 kWh/m(2)/yr and its ecological footprint has by 27% less CO2 emissions than similar buildings in this category. One of the major innovative systems are the Solar Facade controlled system and the Q1-Total Green Building Automation (DESIGO). Siemens specifically developed a Building Automation System (BAS) called Green Building Monitor (TM) to supervise the building consumption data of Q1 continuously for expert analysis. DESIGO includes a specially developed energy-efficient operating control concept for 1,133 rooms.