The Wrigley Building now has official landmark status in Chicago.

The Chicago City Council on Wednesday unanimously approved a recommendation from the Commission on Chicago Landmarks to grant the status to the Michigan Avenue icon. The approval means the 460,000 square-foot Wrigley Building is eligible for Cook County historic preservation tax breaks. The cornerstone for the building was laid in 1920.

Owners plan to light the Wrigley Building blue throughout the summer to celebrate the landmark status.