Search Offices
explore Retail Oppurtunities
Renovation
Wrigley Building Image Gallery
The Wrigley Building

The Wrigley Building Timeline

January 1920
Began excavation
November 11, 1920
Laid South Tower cornerstone
April 1921
Completed South Tower
May 1924
Completed North Tower
1931
Installed 14th-story skywalk
1957
Constructed plaza
1971
Installed new floodlights
1973–74
Suspended exterior lighting during energy shortage
1978
Included in National Register of Historic Places
2005
Changed exterior lighting to more focused beams
2011
Received LEED Gold Existing Buildings certification
Attained Energy Star rating
2012
Designated a Chicago landmark
2013
Comprehensive renovations were completed
2014
Received LEED Silver Core & Shell Certification