Apparently this just broke out. Here are some live updates from twitter:
Getting conflicting info about what's going on at Skywalker Ranch. Spokesperson said no fire but we're hearing there's smoke at the scene.
Fire at #skywalker ranch actually appears to be in the main house lots of smoke
Breaking: Skywalker Ranch is on fire. Marin Co Fire confirms 3-alarm blaze inside buildings at George Lucas' legendary production facility
Update:
Okay. We talked with Mike Giannini from Marin County FD, who says there's a small fire putting off a LOT of smoke at Skywalker Ranch.
A reported chimney fire grew to a three-alarm incident Tuesday night at the Skywalker Ranch off Lucas Valley Road.
The fire was reported shortly after 5:30 p.m. as a chimney fire in the 50,000-square-foot "Main House," an office building on the property near Nicasio, firefighters said.
The private Skywalker fire crew called for help from the Marin County Fire Department, which called for backup firefighters from San Rafael. No one was injured, said county fire Battalion Chief Mike Giannini. The cause was under investigation, but Giannini said the fire apparently started in the area of a fireplace.
Giannini said the extra firefighters were called in to make sure the fire didn't spread throughout the building.
The fire caused "little to no damage," said Lucasfilm spokeswoman Emilie Nicks.
Sheriff's deputies were on scene to provide traffic control.Lucasfilm owns three properties on 6,100 acres in the area.