Drees & Sommer is a founding member of the German Sustainable Building Council (DGNB) and member of the United States Green Building Council (USGBC) and the Green Rating Alliance. The firm uses BREEAM, LEED, the German BNB and the Chinese Three Star sustainable construction evaluation and certification systems.
D&S provides green city certification at the building, district and city levels. Its building ecology services ensure that project business processes aligned with a low-carbon strategy.
It applies the principles of the circular economy to its development projects and works with the Building Material Scout (BMS) for the procurement of sustainable materials.