The developers are Catellus Development Corp. of San Francisco and the Mueller Redevelopment Team, a group of real estate-related companies with operations in Austin.

The detailed proposals from Catellus and the Mueller Redevelopment Team have not been made public, but that should happen at a meeting of the redevelopment committee in coming weeks. The developer's proposals should fill in the blanks for a general redevelopment plan developed by the city, provide a timeline and offer financing options for the project.

With an estimated cost of up to $98 million, the redevelopment of the 709-acre site is the biggest real estate project in Austin history. The plan devised by a citizens group calls for more than 4,000 new dwellings including small lot single-family homes, townhouses, live-work lofts, apartments and condominiums; 300,000 sf of retail, dining and entertainment throughout the community with a particular concentration in a town center area; and up to five million sf of commercial office space in the town center and a mixed-use employment center at Interstate 35 and East 51st Street.