Since the vicinity of the site is occupied by existing galleries, the design intervention minimizes the impact of the new building through careful consideration for the architectural massing and detailing. The building is composed of four parts: the partially sunken Base, the Sculptural Walk circulation enclosure, the elevated podium Platform, and lastly the Monument. The entire base is finished with cast-in-place concrete. Partially sunken from the level of the existing plaza, the base is conceived as a continuous ground for the public.

At the entry to the first floor, Neri&Hu has partially retained the original wide steps. The steps descend down to connect to a sunken piazza. The solid concrete base contains the former museum spaces and restaurant which have been retained, along with newly inserted functions such as retail spaces and public restrooms. These inserted functions complement the activities of the adjacent pedestrian street. From the ground level plaza, a series of escalators lead to the underground museum on the B2 level.

The escalators are concealed within a sculptural form, featuring spaces of sectional play between compression and expansion, capped with a triple-story light well at the base of the sunken piazza, providing a sense of drama and intrigue.