The Downtown Burger King is under renovation at 210 E. State St. The Jacksonville Economic Development Commission Downtown Development Review board approved the project Aug. 26. The developer won approval to demolish the former greenhouse dining room structure on the east and north sides of the building and put up a new brick and stucco exterior wall. The work will decrease the building’s size by 400 square feet. The application to the board stated that the greenhouse structure leaked and that the dining room and restrooms would be upgraded.