In an article about the OPO a month ago, Murphy Development said they're waiting for a anchor tenant to sign and then they'll start ground breaking. I'll try to dig up the article they were quoted
Edit: Found it! Dated 09-26-19
Quote:
Just south of Willis Tower, Murphy Development Group is seeking anchor tenants to kick off construction of 50-story office towers alongside the existing 65-story skyscraper at 311 S. Wacker Drive.
“I don’t think it’s a matter of if, it’s a matter of when,” company chairman and CEO John Murphy said of his firm’s office proposals panning out. “The post office is a real game changer for that part of the Loop.”
|
There are also plans for a seperate tower south of 301/321 S. Wacker
Quote:
South of there, Development Resources for years has sought tenants for a planned office building on a lot it owns at 401 S. Wacker Drive.
|
https://www.chicagotribune.com/colum...fre-story.html