A city board will review early design plans for a large residential project in Seattle's South Lake Union neighborhood Wednesday. The development by Greystar, a global apartment development company headquartered in Charleston, S.C., and Seattle-based Justen Co., will have a total of 430 units in a 24-story tower and a seven-story building on a podium on the half block between Fairview Avenue and an alley and Republican and Harrison streets. In addition, the project will have 12,000 square feet of…