As part of the renovation, 34 elevators and 16 escalators were removed. The original layout of the building included elevators near the perimeter wall, but this took up usable space near windows. As such, Macklowe removed 20 of the elevators that served upper floors and added 10 new elevators in the building core; new stairs were also constructed to replace the existing stairs. The demolition of the interior was completed in November 2018. In addition, the Red Room was restored between 2016 and 2018, in advance of its conversion into a retail space. The Red Room's restoration used tiles that had been placed in storage and unused when the building was originally erected. The third floor was demolished to make a higher ceiling for the retail space. A new entrance was also constructed on Broadway, with a design based on one of Walker's unrealized plans for the building, and five stories were added to the southern annex.