A revolving door assembly (1) comprising a central column (2) and at least one door panel (3) connected to the central column (2) and rotatably arranged around a central axis (X). The central column (2) comprises a support structure (14) and a drive unit (6) including a motor (13) arranged to rotate said at least one door panel (3) around said central axis (X). The support structure (14) is arranged to be mounted to a bottom restriction of an opening in which the revolving door assembly is to be installed. The central column (2) comprises at least one bearing (15, 16) arranged to rotatably support said at least one door panel (3). The motor (13) and the bearing (15,16) are mounted to the support structure (14). A driving base unit (5) for a revolving door assembly (1).