A luxurious castle-like home in Johnson City, Tenn., was badly burned by fierce flames.

Assistant Fire Chief Mark Finucane said the roof and top floor of Crantzdorf Estate's main three-story complex were badly burned Saturday night. The lower two floors suffered water damage as about 25 firefighters took hours to extinguish the blaze.

Finucane said no one was home at the time and no serious injuries were reported. Fire marshals were investigating the cause of the fire, which began in a thunderstorm.

Luxuryrealestate.com has the nine-bedroom lakeside chateau with indoor basketball court listed for sale at $28.5 million.

Johnson City is in eastern Tennessee, about 50 miles southwest of Knoxville.