They aren't reporting costs estimates but its reasonable to expect it to surpass the $28M cost for the Fine Arts Center completed around 2011.
"On Tuesday, representatives for Chaminade College Preparatory School will go before the city of Creve Coeur’s Planning and Zoning Commission for a public hearing regarding a new 28,000 square-foot, 1,200-seat basketball arena on campus."
https://www.bizjournals.com/stlouis...-high-school-proposes-new-arena-in-creve.html
https://fox2now.com/2020/02/17/chaminade-proposes-new-hoops-arena-in-creve-coeur/
"On Tuesday, representatives for Chaminade College Preparatory School will go before the city of Creve Coeur’s Planning and Zoning Commission for a public hearing regarding a new 28,000 square-foot, 1,200-seat basketball arena on campus."
https://www.bizjournals.com/stlouis...-high-school-proposes-new-arena-in-creve.html
https://fox2now.com/2020/02/17/chaminade-proposes-new-hoops-arena-in-creve-coeur/