The superstructure is made of concrete.[1][2][3] Because of CitySpire's mixed-use spaces, it contains nine different structural systems, since a unified grid of columns was infeasible for apartment layouts. Further, because Eichner wanted to maximize views of the surrounding city, the wind-resisting sections of the superstructure had to be placed in the interior. While the lower stories are largely composed of grids of columns, there are also sections of rectangular concrete panels, which are staggered across several levels to create a diagonal wind brace.