Abstract: There is provided a horizontally and vertically extendable building structure module that includes a panel, a structural frame and one or more beams. The panel may be designed to form or set into a floor, ceiling, wall, window, door or any other components that may cover surface of the building. The structural frame may be designed to provide the structural shape and strength and hold the panels. The beams may be designed to connect and align the structural frame. The horizontally and vertically extendable building structure module is configured to build a building structure without additional structural support. Because of the minimized number of components for the building structure, time and cost for building construction may be reduced.