The referendum qualified for the ballot almost two months ago, following a Disney-funded signature gathering effort to fight SunCal's plan to build about 1,500 homes where mostly mobile homes now sit.
Twice, the council postponed a decision on the referendum to allow Disney and SunCal officials to try to come up with a compromise. Two weeks ago, talks ended without a solution.
Councilwoman Lucille Kring, who was the swing vote on supporting housing in the resort area, said Monday that she is unsure how she will vote tonight. She said she wants to look into the ramifications of either choice. But she said she expects some decision will be made.
"I'm still agonizing over it," Kring said.