Super Circulair Estate project is an EU UIA housing project in Kerkrade (NL). The project tested a construction approach relying on mining of materials from neighbouring existing building for new construction. During the last two years, the SCE consortium was pushing the boundaries of what is feasible in circular construction, while deconstructing the existing 10-story flat building built in 1960’s and developing and testing options for the restart of new life of its products and materials. As a result of the UIA SCE experiments, three new houses have been constructed by reusing more than 90% of materials from the existing building and 9 deconstruction and reuse strategies have been tested. Many challenges with respect to the difference between circular and conventional building process have been addressed by SCE consortium members and elaborate in Expert’s zoom-ins.