Gregers Reimann
Managing Director, IEN Consultants, Malaysia
Last updated: February 09, 2023
Gregers Reimann is Managing Director of IEN Consultants, a green building consultancy operating in Malaysia since 2000, which specializes in building designs that are highly energy efficient, have good daylighting, are healthy, and connect with nature for people to thrive.
Key projects include the energy efficient ST Diamond office building (ASEAN Energy Award Winner), the GreenTech Malaysia office building (ZERO Energy Building winner under ASEAN Energy Award), the EnergyPlus UniLK Sustainable Energy Living Lab building that produces twice as much energy as it consumes, the Sarawak Energy office building (80% measure energy savings), and the efficient, biophilic and multi-award winning Paramit – factory in the forest (Winner of the World green Building APN Awards 2020) electronics manufacturing plant.
Retrofits of existing buildings include the energy efficient retrofit of the National University of Singapore NUS SDE1&3 university buildings (targeting ZERO energy), and the EECCHI office retrofit (53% measured energy savings).
Gregers Reimann is the Chairman of the Green Buildings Committee of EURCHAM Malaysia and regularly contributes to green building articles and frequently lectures at universities. He has a keen interest to pursue innovative and integrated design solutions bridging the gap between architects and engineers – and walks the talk by bicycling to work.
Gregers Reimann will be a member of the Holcim Awards 2023 jury for Asia Pacific.
Ecogradia Podcast – Building higher performance

Gregers Reimann from IEN Consultants says high-performance buildings are the calibration of energy efficiency and well-being in this podcast hosted by Nirmal Kishnani.
What is a high-performing building? Do the two yardsticks of performance — efficiency and well-being — complement each other? If there are trade-offs, how do we prioritise?