Located opposite the entry Vestibule on the eastern side of the Memorial, the Assembly Hall was originally a large open space used as a place where returned servicemen and servicewomen could gather socially, as well as for meetings and forums held by the building’s various occupants. The original plans for the room proposed a raised dais on the southern end, with a protruding stage and steps, but this was never built.
The design of the Assembly Hall is more ornate than the general office spaces. The Art Deco detailing extends to the fittings and fixtures in the room. Building details, such as the marble door architraves, the large cornices, the coffered ceiling and the star-shaped lights, match those in the Vestibule. The Hall is now used as a temporary exhibition space.