The DGNB (DGNB (Deutsche Gesellschaft für Nachhaltiges Bauen – German Sustainable Building Council) – is one of the most balanced sustainability schemes out there. Their conceptual principles revolve around a holistic understanding of sustainability, and it therefore looks at both environmental, economic and sociocultural factors. For the DGNB certification scheme, sustainability is just as much about the environment as it is about economic viability and people. Quality and future viability are therefore key factors in sustainability for the DGNB.