To feature open vistas of the river and the city was a priority in this competition-winning design for CASFPI, an union-funded association providing family subsidies and aid to industrial workers. Behind a brushed aluminum and glass façade, the building houses offices, medical services, a restaurant, an auditorium, and other facilities. The design avoids the regular and rigid distribution of space typical of rectangular office towers by cutting away or pushing back the façade wherever the floor area of the roughly rectangular plan exceeds the programmatic requirements. The glazing of these irregular perforations creates multi-story sculptural objects that provide unexpected views of the city to those within the building, while revealing its internal spatial variety.