A step assembly installable in a structure such as a housing of an armrest assembly, the step assembly including a base attachable to the structure including a mounting plate having a low profile and a fixed receptacle to be received in the structure, a step plate pivotally attached along a first end to the base along a lower end of the receptacle, the step plate pivotable between a stowed position in which the step plate is housed within the fixed receptacle and a deployed position in which the step plate is outside of the fixed receptacle, the step plate having a first side for supporting a foot, and a release mechanism for releasing the step plate from the stowed position to the deployed position. The step plate deployed for use and concealed from view between uses.