Construction is under way on 1 World Trade Center, but other planned towers have been stalled in a dispute over financing.
Two people familiar with the negotiations said the dispute has been resolved in negotiations by Silverstein, the Port Authority and Mayor Michael Bloomberg.
They spoke on condition of anonymity because the deal had not been announced.
They said the deal will provide financing for two more towers besides 1 World Trade. A fourth may be built when the economy picks up.
