Willis Tower Repositioning / Gensler

Willis Tower has been an American architectural icon and centerpiece of the Chicago skyline since 1973. In 2015, a massive mixed-use redevelopment of the site began, seeking to re-envision the tower “from street to sky.” In 2021, this transformation of the 110-story property was finalized, marking the completion of the biggest restoration project in the building’s history. Willis Tower may have been built in an era of single-use buildings and urban flight, but its next iteration consists of a modern mixture of uses with active streetscapes — welcoming to all.