The Hall County Board of Commissioners is set to approve a $257,000 contract Thursday for the architectural design of a new sheriff’s office. The new administrative headquarters would be constructed at the 33-acre Government Center campus on Browns Bridge Road, and about $5 million has been budgeted out of SPLOST VI monies to fund the proposed 50,000-square-foot, three-story building, according to county officials. “All the necessary infrastructure, including power, water, fiber optics andparking, is readily available at that site, which will save taxpayers money and reduce the time required for construction,” Sheriff Gerald Couch said in a news release.