The Tri-State Fire Protection District responded to a fire in a house on the Hinsdale Nurseries property Monday morning.
A worker at the nursery, at 7200 S. Madison in Willowbrook, reported the fire at 6:39 a.m., said district Fire Chief Jack Mancione.
A one-story house on the property was being used for offices.
When firefighters arrived, flames were burning through the ground floor and into the attic space of the house, Mancione said.
No one was inside the building and no one was injured, Mancione said.
Firefighters had the fire extinguished in about 45 minutes, Mancione said.
Firefighters from the Woodridge, Westmont and Darien fire departments and the York Center and Pleasantview Fire protection districts assisted Tri-State.
The cause of the fire had not been determined as of Monday.