After seven years of planning and multiple iterations, the Four Seasons Residences will break ground this week. As we have seen with many of the recent downtown Austin condo projects, they are not truly real until construction begins. Having reached that milestone, the 32-story Michael Graves-designed tower is now expected to open to residents in 2010.With 166 condo units priced from $500 - $750 per square foot and monthly condo fees of $0.61 / square foot, the Four Seasons Residences represents an ambitious super . . .