After an intensive preliminary planning phase, the energy-efficient revitalization of the DEVK headquarters on the banks of the Rhine in Cologne began at the end of March 2025. Covering approximately 67,000 m² of gross floor area, the modernization focuses on forward-thinking building physics, with MorgenGrün playing a key role as a project partner. The refurbishment is being carried out in close collaboration with Lengfeld & Wilisch Architekten BDA.
Precision Planning and Innovative Approaches at the Core
MorgenGrün relies on state-of-the-art digital surveying, precise 3D thermal bridge simulations, and performance-based analytical models. This detailed work enables the development of an innovative concept that meets the highest standards of acoustic and thermal comfort.
Trailblazing Solutions
The dedicated MorgenGrün team, led by Senior Consultant Nedim Hodzic, has provided crucial input in several key areas:
- Optimization of the thermal building envelope: targeted measures to enhance energy efficiency.
- Improvement of room and building acoustics: creating a comfortable working environment despite the urban setting.
- Support for DGNB Gold certification: advisory services guiding the transformation into a certified, future-ready office building.
Modern technological strategies further support the sustainable energy supply of the refurbished building. The energy concept is centered around advanced solutions that leverage natural resources, intelligent greenery, and digital planning:
- Energy supply: A large-scale heat pump system utilizes the nearby Rhine River as a renewable energy source – a smart concept that not only supports heating but also enables passive cooling via groundwater.
- Photovoltaics and greenery: Extensive PV installations on rooftops and wide-ranging greening measures – including green roofs, technical structures, and vertically planted façades – reduce energy demand and contribute to stormwater retention.
- Digital surveying: A comprehensive digital model and strategic component inspections laid the foundation for long-term energy optimization, helping to reduce CO₂ emissions by 25 kg/m² per year.
A Key Factor for the Modern Workplace
While ZWP Ingenieur-AG took the lead in the MEP design, MorgenGrün’s expertise in building physics stands out as a central success factor. The result is a modern, energy-efficient office concept that meets high technical standards while contributing to the sustainable development of the DEVK headquarters.
"My experience shows that even small adjustments can have a major impact on sustainability and comfort. This way, buildings become more than just structures – they become places where people and nature coexist in harmony."
— Nedim Hodzic
