Concord officials insisted Friday that the $6 billion redevelopment of the Concord Naval Weapons Station will move forward despite the developer suspending work and threatening to quit over a labor dispute.

For over a year, the developers, Lennar and FivePoint, have been in talks with the Contra Costa Building Trades Council over what sort of “project labor agreement” would cover the development, which calls for 13,000 new homes, 2,700 acres of parks and 6 million square feet of commercial and academic space.