Wendy Martin is worried that a proposed 246,000-square-foot shopping center on Dawsonville Highway will destroy the neighborhood she’s lived in almost her whole life. The Gainesville City Council is scheduled to hold a public hearing and take the first of two votes that will determine whether a developer can build a commercial retail center that abuts the Lakeshore Heights subdivision off Ga. 53/Dawsonville Highway. The developer and other supporters said the project will add hundreds of jobs to the city and increase the local tax base.