Senayan Office Tower 3 Waterproofing Project Senayan Office Tower 3 Jl. Asia Afrika No.8 Jakarta, Indonesia Completion Date Product Volume 2011 HPI System 3,837 m3 Area Completed : Basement Slab, Retaining Wall & GWT Architect Kajima Design Engineer PT. Wiratman & Associates Contractor PT. Kajima Indonesia Developer/Owner PT. Senayan Trikarya Sempana