Mayor Lori Lightfoot said Wednesday she plans to propose changes in the city’s zoning code — signaling she was prepared to launch a full-fledged battle to end aldermanic prerogative that could put Chicago’s first ever black female chief executive at loggerheads with 50 aldermen.

“In the coming months, the new administration will also seek to work with the City Council to bring forward new legislation that increases transparency in city zoning processes,” Lightfoot said in a statement announcing a new package of ethics reforms.