Dan Gilbert is proposing a different 13-acre site in Detroit to house a new consolidated criminal justice complex for Wayne County that would help pave the way for a Major League Soccer stadium and three high-rises downtown.

The change in proposals came Wednesday as Walsh Construction also submitted its plan to complete the half-built Wayne County Consolidated Jail on Gratiot Avenue at I-375.

Gilbert's Rock Ventures LLC proposed building a new $520.3 million criminal justice complex on about 13 acres of city-owned property immediately north of the previously proposed site at I-75 and East Forest Street.

The new site, currently used by the Detroit Department of Transportation, is generally bounded by the Chrysler Service Drive, East Warren Avenue, East Ferry Street and Russell Street. Under the new Gilbert proposal, the county would be responsible for acquiring it from the city.

"We just concluded that it's a better site," Matt Cullen, principal of Rock Ventures, said Thursday morning in an interview. "It has more options to it and more scale. The other site was fine, but it got a little more complicated from a schedule standpoint because of the Lincoln Hall of Justice being there now. The city advised use that they were considering vacating the (DDOT) site and consolidating some things, and that's how it came together."

The county would be responsible for $380 million of the $520.3 million cost, according to a news release.