Office Buildings

Revitalization of Sedanstrasse office high-rise, Cologne




Drees & Sommer, Integrated Design Team

Project duration

August 2022 – December 2025


15,000 m²

The administration building in Cologne’s Sedanstrasse is a seven-storey with two basement levels and a two-storey block with a basement in the courtyard. 

The Drees & Sommer team has been tasked with undertaking comprehensive revitalization of the building. This includes renovation of the building envelope, installation of new plant and equipment, and contemporary fitout to create a modern work environment.  

Special features of the project include sustainability aspects such as a green oasis in the courtyard, DGNB certification, and the provision of EV charging stations. Renewable energy is supplied by Solarshift modules with groundwater also serving as a primary energy source. 

Drees & Sommer has already put digital transformation of the building on track with a DigitalReady check. The overall goal is to respond to the new work environment through energy-efficient refurbishment and modernization, thus ensuring the future viability of the building.  

Added value

  • Close involvement of users during planning 
  • DGNB certification  
  • Maximum cost and schedule certainty thanks to use of Lean methodology 
  • Structured planning with subsidies  
  • Heritage protection 
  • Energy provided by Solarshift energy recycling modules, groundwater as a primary energy source 




  • General Construction Management
    • Project management
    • Site planning
    • BIM coordination
    • Structural engineering
    • Planning of building services equipment
    • Facade consulting
    • Building physics
    • Site supervision 
  • Certification consulting 
  • Subsidy consulting 
  • Development of barrier-free concept 
  • LCM®