Millennium Partners’ proposed new 47-story tower in San Francisco, 706 Mission – The Mexican Museum, took an important step forward last week when the Planning Commission certified the environmental impact report. The 550-foot tall tower will house up to 215 residential units, as well as space for the Mexican Museum on levels one through four. The tower and museum will connect to the adjacent 1903 Aronson Building, which will be restored and rehabilitated as part of the project.