A 60-unit affordable housing project geared to residents 55 and older is a step closer to development in Flowery Branch. The City Council gave its final OK Thursday night to St. Simons Island-based Clement & Co.’s rezoning request that would allow for the complex to be built on a 7-acre site off East Main Street near Thurmon Tanner Parkway and Phil Niekro Boulevard. But the proposal coming to fruition largely hinges on the developer getting tax credits through the Georgia Department of Community Affairs, a competitive process that begins with developers filing applications on June 9.