Abstract: A unitary lavatory seat assembly including a seat adapted for sitting thereon for lavatory purposes, the seat including a non-pivoting extension which extends from a forward portion of the seat, and a base pivotally attached to the seat along a pivot axis and arrangeable therewith in a first and a second orientation, wherein in the first orientation, the seat is supported by the extension and at least partially supported by a portion of the base at a rearward portion of the seat, the base being swung about the pivot axis to be positioned underneath the seat, and in the second orientation, the seat is placeable on a portion of a lavatory bowl and the base is swung about the pivot axis to be positioned forward of the extension, the base being adapted for stepping thereon, thereby to aid a user to climb and sit on the seat.