Hendley Properties’ plan to build five one-bedroom cottages as rentals behind an existing four-bedroom house the company is refurbishing on South College Street received the necessary variances from City Council this week, and drew no objections from neighbors. But the development raised some concerns about traffic. For several years now, the firm led by Ray Hendley has been a leading developer of rental housing around Statesboro’s South Main Street corridor, a segment of U.S. Highway 301 increasingly known as the Blue Mile.