The construction of buildings consumes huge amounts of energy. In order to reduce this, in Kassel, Germany, an architect has started an #exchange enterprise with a storage building to #reuse and r#recycle as many building components such as doors, windows, or metal parts as possible. The project has a huge potential since the #rubbish stemming from the building sector is, e.g., in Germany in 2023, more than half of all the rubbish produced. See http://www.neat-news.com/3593.php. #circular_construction