Ecology: the aim of ecology is the conservation of nature, raw materials and resources. Future generations should find the same ecological quality as today's generation.
Economy: to ensure a sustainable economy, constant economic growth is necessary as well as taking into account entire life cycles. For example, it is not enough just to evaluate the acquisition costs.
Social responsibility: a decisive aspect with regard to social responsibility is, for example, the prohibition of human trafficking, child labour etc. Furthermore, the health of fellow human beings naturally takes precedence. This means that not only the usage of non-hazardous materials, but also assistance for persons with personal restrictions should be taken into account. In addition, attention should be paid to the importance of light, temperature, fresh air, noise and other influences on the building's occupants.