In the dynamically growing metropolis of Berlin, construction projects are the order of the day. They create new space for housing, business and innovation, public facilities and refurbish or preserve existing buildings. The construction sector is not only economically relevant for Berlin, but also in terms of natural resources. Construction accounts for almost a quarter of the raw materials used in the state of Berlin. In the five years from 2012 to 2016, construction and demolition waste grew by approximately 160,000 tons to nearly 4.4 million tons. As Berlin grows and needs new residential and non-residential buildings, construction waste volumes are projected to increase to approximately 5.5 million tons in 2030. Currently, the recycling rate for construction waste is around 50 percent; it is expected to increase to more than 60 percent by 2030, according to the waste management concept of the state of Berlin.

In this episode of Wandelwecker methods in which circular economy approaches in the construction sector can be strengthened in order to achieve this goal was discussed together with two proven experts in circular construction.