Following backlash from St. Louis residents, Board of Aldermen President Megan Green said a temporary ban on data center proposals is not off the table if concerns about the projects are not answered.

Green’s comments came after news that a conditional use hearing Thursday for a $600 million data center proposal at the shuttered Armory site in Midtown had been postponed.

City zoning staff said Tri-Star Properties, which hopes to purchase the property, requested a continuance this week. Green said the developers needed more time to comply with Mayor Cara Spencer and the board’s new rules on data center hearings.

Green warned that if questions about data centers aren’t answered through the process, previously tabled discussions on a temporary ban could continue.

“The executive order

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