Boston is about to break ground on a new project to develop artist spaces in three hundred-year-old warehouses. The Fort Point artist project is a $23-million, 206,000-square-foot complex. “Architectural designs for the project include 200-seat and 50-seat black box theaters, classroom and rehearsal space, an art gallery and cafe, and 89 units of artist housing ranging from 920 to 2,300 square feet. The collaborative also plans to rent about 7,000 square feet of office and retail space to nonprofit arts groups and arts-related businesses.”