Signature Green Park Waterproofing Project Signature Green Park Jl. MT Haryono Kavling 20, Kelurahan Cawang, Kecamatan Kramat Jati, Kota Jakarta Timur 13630. Completion Date Product Volume 2016 HPI System 2,566 m3 Area Completed : Slab and Retaining Wall Architect In house Engineer PT. Gistama Inti Semesta Contractor PT. Pulau Intan Developer/Owner PT. Pikko Group