There is one apartment which is a high-rise building in Surabaya area built in 2018-2020, has 2 basements, 3 podium floors, 33 main floors, and a roof floor. High-rise buildings are identical to the earthquake load and wind pressure, which can result in lateral swings and reduce structure rigidity, so an additional structure system is needed to anticipate, by adding outriggers and belt-truss systems, in order to compare the design of 33-storey apartment structures with modification of the addition of outrigger and belt-truss systems. This research models open frame and shell element modeling, based on the fortender image, which is modeled in 3D using the Etabs program version 16.2.1, with two modeling modes, modeling with data from existing fortender structure elements and modeling with the addition of outrigger and belt-truss element systems placed on the 16th floor. The running process of both models, to compare the response of the structure, and design the dimensions of the outrigger and belt-truss structure system. The analysis results obtained from the control of the structure for mass participation of the structure, can increase stiffness, while for fundamental period, shear force, and interstory drift can reduce the control of the structure. Outrigger design analysis results use a thickness of 300 mm, 35 Mpa concrete quality, 40 mm concrete blanket, tensile reinforcement using U-55 steel quality along 680 mm side of the upper and lower heights mounted 4D22-170 reinforcement, and shear reinforcement using steel quality and U-24 along the middle height side mounted 12D10-170 two layers, for belt-truss design using CHC 318.5.9 steel profile, with U-41 steel quality, for landing plate design using 500 mm x 500 mm size with 41 mm thickness, U-25 steel quality, for the design of welding joints using E60xx quality with a thickness of 17 mm, for anchor bolt design using 24D22, U-25 steel quality with an effective depth of 150 mm.