Sony Pictures Entertainment will officially relocate its corporate offices to a new building on the Sony Pictures Studios lot in 2017.  The company’s current home, a mid-rise structure in Downtown Culver City, is now in the hunt for its first new occupant in over two decades. Sony Pictures Plaza, designed by the late architect Maxwell Starkman, features more than 260,000 square feet of office space in an eight-story structure at 10000 W. Washington Boulevard.  The building, previously known as the Filmland Corporate Center, was completed at a cost $60 million in 1986 to serve as the headquarters of Metro-Goldwyn-Mayer Studios. According to documents submitted to the Culver City Planning Division, LBA Realty, the Irvine-based real estate investment firm which purchased the building for $159 million in 2014, plans to refurbish the soon-to-be vacant property and add new amenities. The redesign of the building, which will be known as One Culver City, is being shepherded by the global architecture firm Gensler.  On the first floor, plans call for the addition of a fitness center, an expansion of an existing retail stall and new entrances on Culver and Washington Boulevards.  Architectural drawings portray the upper levels of the horseshoe-shaped building with open floor plans. The project would cover the building’s current stone exterior with metal panels, while new landscaping would be installed along its front courtyard, and beneath its signature glass atrium. A timeline and budget for the project are currently unclear.