Both sides in a lawsuit over Scottrade Center renovations are seeking confidentiality for certain documents.

Submitted Monday, the joint proposal protects “proprietary and commercial” documents, such as sensitive business or financial information, and other files that would not normally be considered public under Missouri law. It includes authorization to seal portions of deposition transcripts discussing sensitive business information as well.

If the judge approves the order, plaintiffs and defendants would still need to ask the court permission for confidentiality for each set of documents produced.

“Nothing in this Order will be construed as a prior directive to allow any document to be filed under seal,” the proposal reads.

The lawsuit was brought against the city of St. Louis and the owners of the Blues professional hockey team by Alderman Cara Spencer, 20th Ward, and two other plaintiffs in August. It seeks to make a $64 million financing agreement, approved by the Board of Aldermen in February, unenforceable.

A trial date has been set for Dec. 11.