The building caught fire in Lakeview on Sunday morning. By 6:15 a.m. firefighters were working to put the flames out near Greenview at 1435 W Fletcher Street.
Several people were evacuated from the building. Chicago fire officials said no one was hurt.
The Red Cross was at the scene helping displaced residents. The cause of the fire is under investigation.
By 9 a.m. CFD said the fire was out.