UPDATE: Porsche's new headquarters, test track, costing $466 Million more than expected

Luxury automobile manufacture files permit applications to construct new facility near Hartsfield-Jackson totaling $566 Million.

Porsche Cars North America is moving forward with plans to relocate its Sandy Springs headquarters of 13 years to Jacoby Development Inc.’s Aerotropolis Atlanta, the nearly 130-acre mixed-used redevelopment of a Ford Motor Co. assembly plant that stood in Hapeville for almost 60 years.

Porsche filed two building permit applications with City of Atlanta Tuesday to begin construction on its new headquarters, training facility and test track.

Porsche's U.S. headquarters compound will consist of a "three level below grade parking structure with 650 parking spaces," an automotive technical training space, fitness area, restaurant and four-story office building, according to the permit.

Porsche will spend an estimated $564,000,000 constructing its 234,000-square-foot headquarters. An additional $2,100,000 will be spent to construct the luxury automobile's "driving experience and track," according to a second permit application.

Porsche originally announced it would only spend an estimated $100 Million on the project.

The luxury automobile manufacture will become the first tenant at the Aerotropolis development neighboring Hartsfield-Jackson Atlanta International Airport.

The headquarters, at 320 South Central, is slated for completion in 2013.

Photo courtesy of Porsche.