A construction assembly and methods for making and using the same. The construction assembly includes a plurality of primary structure members each having an S shape including first and second portions respectively defining first and second level recesses. The primary structure members can be in a standing position with the first and second level recesses being respectively proximal to and distal from ground. The first portions can collectively surround and define first level space. The second portions can collectively surround and define second level space greater than the first level space. Advantageously, the construction assembly can provide an efficient space-generating solution. Because of the smaller floor area of the first level space, environmental hazards such as wind, flood or tsunami can exert smaller impact on part of the construction assembly proximal to the ground. Advantageously, the primary structure member can be lightweight, strong and easy to assemble.