Developer D.R. Horton won state approval today to move ahead with plans to build Ho’opili, a development with 11,750 homes on 1,554 acres of prime farmland in Ewa.

The state Land Use Commission voted 8-1 in favor of the project.

The Sierra Club’s Hawaii chapter, community group Friends of Maka­kilo, state Sen. Clayton Hee and others had opposed the project, saying it would take away some of the best agricultural land on the island and add to the congestion on the H-1 freeway.

The master plan for the community includes 3 million square feet of commercial space, five schools and 159 acres of commercial farms.