The so-called Peak Fire engulfed the structure shortly before 10 a.m. in the 23000 block of Saddle Peak Road, according to the Los Angeles County Fire Department. No injuries were immediately reported.
As flames and a massive column of smoke rose through the roof, a fire helicopter was performing water drops while firefighters doused the home with water from multiple hoses.
Just after 11 a.m., the Los Angeles County sheriff's Lost Hills station announced the fire had been contained. Deputies and firefighters remained at the scene for mop-up operations.
The cause of the fire was not immediately known.