© Rheinengerie/Stefan Schilling
Energy Supply (electricity, gas, district heating)

RheinEnergie AG

Additional value

  • Smooth coordination of an ecological showcase building

Individual services

  • Scrutiny of execution planning
  • Construction supervision of general contractor
  • Coordination of construction supervision
  • Project Communication System (PCS)
  • Plan Verification
  • Defect Management

NTH & Partner, Frankfurt am Main; Norbert Sinning, Darmstadt


RheinEnergie AG, Cologne


Cologne, Germany

General contractor

Max Bögl, Sengenthal

Project duration

April 2011 – September 2016


approx. 57,500 m²

Construction cost

€ 140 million net

After three years of construction, RheinEnergie AG opened its new corporate headquarters in Cologne-Ehrenfeld in June 2014. The utility company has created around 2,000 modern workplaces for its employees in a building complex that is a model of ecological sustainability. In the initial stages of the project, Drees & Sommer experts supported the principal by continuously checking the progress of execution planning. During the construction phase, they checked work against contracts, recording defects and tracking their elimination through to acceptance of the building. The specialists also coordinated all project participants – from the client to specialist engineers. A second construction stage will run until early 2017.