Methods and systems for moving and installing modular building units or pods are provided. A positioning device and method of using the same comprises a base member pivotally connected to a frame member by a plurality of linkages. The mechanism and method provides for a vertical lifting motion and a horizontal translational movement of a unit or pod that is connected to the mechanism. In one embodiment, the frame member includes a plurality of hooks configured to selectively engage the unit or pod. Placement and installation of cumbersome building units is simplified compared to prior art methods and devices of moving a unit or pod.