For the design of the Colonnade Condominium project in Singapore, Rudolph returned to the "Twentieth Century Brick" concept that he had developed as part of the Graphic Arts Center in the late 1960s.
Rudolph originally proposed the building be composed of factory-built units that were assembled on site. The cost proved to be too much, so the building was built out of poured concrete and infill panels, with the modular appearance maintained.
Rudolph again varies the scale of the tower by raising it on a series of round columns exposed at the building's base, giving the building its name. The shaft of the tower consists of a series of repeating solids and voids providing each unit with a double height living room and private terrace.
To further add scale to the buildings mass, the stair shafts and elevator core are recessed, dividing the plan into quadrants.