The home was located on Pacific Coast Highway, where authorities had to shut down the road for nearly two hours. The fire broke out at about 7:18 AM PT and was declared "knocked down" at 7:51 AM.
According to local reports, flames rose as high as 30 feet in the air.
UPDATE: A rep for Lake tells TMZ there were no injuries and Lake, her kids, and her dog got out unscathed.
UPDATE 2: According to the sheriff's station, Lake was trying to refuel a portable heater when a couch caught fire.