30 Degree Sunlight Part 1 Project 2018 Anh Duy Tran Van Hieu Nguyen Van Huan Ngo Ho Chi Minh City University of Architecture, | Vietnam Tube house has been the most feature characteristic of Vietnamese urban. It usually appears in a cluster of residental spaces arranged from a lot of building which have a narrow facade, endless extension behind it and stacking up of three or five floors. The tube house we chose was a low-condition living space for a four-member-family and a local nursery. By a solution of “sloping cut” from passive method, we tried to increase their living space. Anh Duy Tran Van Hieu Nguyen Van Huan Ngo Tutor(s) Dinh Nam Tran