Gwinnett County commissioners have endorsed plans for a mixed-use entertainment district at the county’s Infinite Energy Center in Duluth.

On Tuesday commissioners approved a resolution supporting a revised master plan for the arena complex that calls for housing, retail, restaurants and new parking at the 104-acre center, located near the intersection of I-85 and Sugarloaf Parkway. The county-owned property already is home to a 13,000-seat arena, a convention center, an exhibition hall, a ballroom and a 700-seat performing arts center.

The Gwinnett Convention & Visitor's Bureau, which manages the complex, has solicited companies interested in developing the private portion of the development. Six companies have expressed interest.

County commissioners also recently approved the new Sugarloaf Community Improvement District for the area. It's a collection of commercial property owners who have agreed to pay an extra property tax to pay for transportation and other improvements. The new district recently elected its first board of directors.