Architecture, Building and Structure Design Z Line House Private Residential by Revano Satria Z Line House is a private house located in Semarang, Indonesia. The design uses a parametric system to shape both the geometry and the structure. A series of calculated, sculptural interventions defines the facade, while the interior spaces are planned for fluid transitions in both horizontal and vertical directions. The geometry is optimized to control water flow during the heavy rainfall of the tropical climate. A detailed solar study guided the eastern and western facades, and the openings follow view axes, occupant height and the even distribution of natural light.