1. The Chase Tower With over 40 floors, the Chase Tower has been the tallest building in Phoenix since 1972. These are the tallest buildings in Phoenix, Arizona.The Astra was approved to start construction late last year. This building will become the tallest in Phoenix and AZ. The tallest building in the state of Arizona is the Chase Tower in Downtown Phoenix with 40 floors and reaching 483 feet into the sky. For a complete overview of the developments coming soon to the next generation of Downtowners, visit the Downtown Phoenix Development Map here. Currently, Chase Tower at the southeast corner of Central Avenue and Van Buren Street in Phoenix is the tallest building in the state, at 483′. List includes both new buildings in Phoenix and older historic landmarks. List ranges from Wells Fargo Plaza to 3300 North Central Avenue, plus much more. 'Best gig in Arizona': The state's tallest building made countless memories.