Developer Callery-Judge Grove received Palm Beach County commissioners’ approval for a plan to build almost 3,000 houses on its 3,800-acre orange grove in West Palm Beach. The commissioners voted 6-1 to pass the proposal to the state Department of Community Affairs as an amendment to the county’s growth plan. Six weeks ago, the Department of Community Affairs, which regulates development, balked at the plan, claiming its size and scope would overwhelm schools and roads and clash with the area’s rural character. Callery amended the plan to address the potential problems, said Kerry Kilday, the planner representing Callery. A much earlier proposal had called for about 10,000 houses.