It all started a few days ago when deputies patrolling the area said they got a whiff of marijuana and followed the smell.
"After three days of investigating we were able to determine it was this house. Each night we got out and followed the odor, it brought us back to this location," said Dep. David Fletcher, Los Angeles County Sheriff's Department.
Authorities seized 400 plants.
One person is in custody, and deputies say they are trying to link other possible suspects to the pot operation.