H High-rise building Projects are generally carried out by the Bottom-Up method, where the sequence of floor work starts from the bottom floor/sub structure (basement) continue to Top/Super Structure, and for the lower part of the building on under ground/sub structure/basement is done by open excavation method/open cut. But for high-rise building projects that are in the middle city with most populous and limited land, the work of the lower part of the buildin/sub-structure by open cut/open cut is difficult to done. Research here is to analyze several innovations that must be done if the project is on a limited/narrow land, the analysis is on the application of work methods, implementation time, and implementation costs. The work method that is of concern here is at the time of making the sub structure / basement, because for the upper structure the building is still carried out in a general way. The innovations carried out here use the Semi Top-Down method, with the selection of Bored Pile foundations continued by the Raft Foundation, selecting the Diapragem Wall as Retaining Wall, use and selection of the King Post point, selecting the First Basement floor as the Starting Floor floor. From the results of Demographic Data analysis, Topography data, Land Properties data, Soil Test data, approaching Cost Construction calculation, and simulation to get the most effective implementation time, with combination research methodology, the most appropriate implementation method is the Semi Top-down method.