GKM Tower Waterproofing Project GKM Tower Jl. TB Simatupang No.Kav. 89G, RT.10/RW.2, Kebagusan, Ps. Minggu, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12520 Completion Date Product Volume 2013 HPI System 6,371 m3 Area Completed : Basement slab and Retaining Wall, GWT, RWT, Roof Genset and Hellipad Architect Planning & Development Workshop Engineer PT. Wiratman & Associates Contractor PT. Total Bangun Persada, tbk Developer/Owner PT. Total Bangun Persada