May 23rd, 2016, Prof. Christoph Kuhn, the head of Institute for sustainable building design from TU Darmstadt Germany paid a visit to CAUP. Dean Prof. LI Zhenyu, Vice Dean Prof. LI Xiangning, Director of Architecture Department Prof. CAI Yongjie and Prof. QU Cuisong welcomed the guest. Both sides discussed future collaboration in sustainable design and green building. Both schools confirmed to jointly take part in the 2017 Solar Decathlon, and exchanged further details.