600 Market Rate Apartments to be built by AvalonBay Communities. SDSU Mission Valley is taking shape as a vibrant, mixed-use community that will transform the City of San Diego. Snapdragon Stadium anchors the 166 acre development which includes plans for a 1.6M SF Innovation District, 4,600 residential units, up to a 400 room hotel, 95,000 SF of retail, and more than 80 acres of community parks and open space.