Berlin hosts a fair showcasing building industry components
In a significant move towards sustainable construction practices, BIM Berliner Immobilienmanagement GmbH has launched a new construction part auction. The initiative aims to reduce CO2 emissions, avoid waste, and return materials to the cycle, as part of BIM's goal to use existing resources sensibly within its real estate portfolio and regionally.
The auction, open only to businesses or associations, offers a range of usable construction materials, including steel beams, bricks, windowsills, mirrors, wall lights, and even a construction trailer. The minimum bid for each steel beam is set at 133 euros.
The steel beams being auctioned are no longer needed at the Berlin-Tiergarten District Court, marking an opportunity for their reuse rather than disposal. This move is part of BIM's comprehensive reuse concept, which also includes a replacement building materials ordinance implemented in Germany since 2023, regulating the processing of mineral waste nationwide to advance the circular economy in construction and avoid waste.
Germany has been at the forefront of circular building initiatives, with projects like the KARMA project, led by the Free and Hanseatic City of Hamburg, actively working to improve local and regional policies that foster circular construction practices. The country continues to be a hub for innovations related to renewable and recyclable materials within construction and related sectors.
The city of Berlin, in particular, generates around 60% of its waste from the construction industry. Events like the Renewable Materials Conference 2025, held near Bonn/Cologne, showcase solutions and innovations centered on replacing fossil carbon materials with biomass, CO₂ utilization, and recycling, key components in reducing waste and enhancing circularity in material use.
Non-profit organizations like Circular Berlin are also actively developing the circular economy in urban areas, reshaping the city towards circularity through knowledge building, practical programs, and community engagement.
Matthias Hardinghaus, Managing Director of BIM, stated that the industry is ready for circular building. He added that reusing building materials from demolition and renovation projects combines climate protection with economic viability. An example of successful reuse through BIM's initiatives is the use of parquet flooring from a police station to make individual tables.
Successful bidders can pick up materials at the Spandau "Friedhof In den Kisseln" cemetery administration. The auction platform enables a greater degree of reuse by brokering materials that cannot be used in BIM's construction projects, contributing to the transition towards circular building practices that prioritize the reuse of construction materials and overall sustainability in the construction sector.
- The auction organized by BIM Berliner Immobilienmanagement GmbH, which offers a range of reusable construction materials, is part of a larger movement in environmental science focused on combating climate-change and promoting a circular economy in the industry.
- The reused steel beams being auctioned by BIM, previously from the Berlin-Tiergarten District Court, demonstrate the potential for finance and technology to drive sustainability in the construction sector, as these materials would otherwise contribute to waste in the environment.
- In the effort to reduce waste from the construction industry, non-profit organizations like Circular Berlin and initiatives like the KARMA project, work alongside businesses and the government to promote the use of renewable and recyclable materials in environmental-science and technology, ensuring a sustainable future for cities like Berlin.
