Coconut Creek is anticipating building 2,360 new residences as part of its long-anticipated Mainstreet development, but first Broward County government will have its say about it. County commissioners are expected to sign off on a plat application Tuesday, one of the required steps before shovels go into the ground. The new homes would be built on former farmland where tomatoes once grew aplenty. Renderings show the proposed Coconut Creek downtown area, known as MainStreet.