Another mixed-use residential building is being proposed for midtown Sacramento, this one at the intersection of 15th and S streets. An application received by the city describes it only as “1500 S Street Mixed Use,” with 76 residential units above 13,000 square feet of commercial space. Steve Whitesides of Roseville is the applicant. “The project is a four-story wood framed apartment community over one story commercial concrete podium,” states a project description included in the application,…