A rotatable building structure contains a vertical central core for supporting suspended floor units surrounding the core. An annular platform extends from the core at corresponding floor units for providing accessibility to and from the central core. The floor units contain a drive mechanism for rotational displacement. The wind load on the exterior side of each floor, and/or horizontal wind turbines that turn around the core but is a separate part of the floor itself, solar panels situated as a roof cover on top of each floor and A wind tool deployable from the floor unit provides alternative wind power assist for rotating the floor units.
