Tribune East Tower

Tribune East Tower is a proposed 102-story, 1,442-foot supertall skyscraper planned for 421 N Michigan Avenue — the site immediately east of the historic Tribune Tower on the Magnificent Mile. Designed by Adrian Smith + Gordon Gill Architecture and developed by CIM Group, the tower was approved by the Chicago City Council in 2020 and received updated zoning approval in 2023.

If built, Tribune East Tower would become Chicago's second-tallest building, surpassing the John Hancock Center and trailing only the Willis Tower. The program includes 564 residential units (condos and apartments), a 200-room hotel, ground-floor retail, and a 687-stall parking garage. The residential component would occupy the upper floors, with views that would be among the most dramatic in the city — unobstructed lake views to the east, the Chicago River to the south, and the full skyline to the west.

As of early 2026, the project has not broken ground despite its approvals. The development timeline remains uncertain, with some reports suggesting a 2027 completion target that most observers consider optimistic. The project has faced financing challenges common to supertall developments. We will update this profile as the project progresses.

421 N Michigan Avenue is one of the most prominent addresses in Chicago — directly on the Magnificent Mile, adjacent to the historic Tribune Tower, and steps from the Chicago River. The Streeterville neighborhood offers lakefront access, world-class museums, and proximity to the Loop.