In May Barack and Michelle Obama ended months—perhaps years—of speculation over where the 44th President would site his presidential library, choosing the University of Chicago as the host of the hotly anticipated legacy project.

Dozens of proposals were winnowed down to one, prepared by U of C with the help of Skidmore, Owings & Merrill. The Barack Obama Presidential Library—that is, the actual project—does not yet have an architect, however, and the Chicago Sun-Times is reporting that a call for submissions is nigh. They quote anonymous sources saying “a very general” request will go out “very soon,” suggesting the first couple and their nonprofit team of advisors on the subject do not yet have a specific designer in mind.

The library, which many hope will be an economic boon for the South Side, will be based in either Washington or Jackson Parks. That decision remains controversial, and may factor into the winning design—from whomever might propose it.