The Willoughby Tower (Chicago) stands tall over the Michigan Avenue cliff, presiding over the parade of unique architecture at its sides. It is also a victim of early 20th century urban planning. The reason for the tall tower is to comply with a former city ordinance which stated that the portion of a building above a certain height could only occupy 25% of its footprint. Thus, the tall tower to maximize revenue and prestige while staying in line with setback laws. It helps distinguish this tower from the majority of buildings in the "cliff" which are all around 280 feet tall. The tower was build in 1928.