The Hong Kong-Zhuhai-Macao Bridge (HZMB) is an unprecedented important strategic road corridor which links up three regions in the Pearl River Delta, China. In mid 2009, Highways Department initiated to organize an International Design Ideas Competition for its development.

Under the Same Roof – a project by Paul Mui Kui Chen, Benny Lee Chiu Ming and Agnes Hung Oi Kee –  received first prize in the competition. An indoor winter garden also acts to replenish the air with fresh oxygen improving the air quality of the very busy transportation hub. Algae tubes located mounted on the roof utilize sunlight to create even more oxygen. Meanwhile natural ventilation is facilitated through the stack effect and operable panels to release air and exhaust.
Read more: First Prize Design For Stategic Hong Kong Transportation Hub | Inhabitat – Green Design Will Save the World