The requirement was for an apartment building with equal numbers of three types of apartments. A cellular configuration allowed apartment types to be distributed arbitrarily and a distribution where the different apartment types "spiraled" up and around the building was adopted. 

 

Each floor has ten apartment spaces but only eight balconies evenly spaced around the circular floorplate. These balconies are offset 13.36° on successive floors, creating an external pattern that increases the apparent scale of the building. The scale is further confounded by a mosaic supergraphic and a positioning and distribution of windows that appears arbitrary but in reality responds to the balcony conditions on that floor and the floor below. 

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The facade thus mediates between the internal world of the building as apartments, and external expectations placed on it as an architectural object in a city.