The fire at the structure, described as a large residential building with a commercial business on the first floor, was first reported at 5:09 a.m. at 5351 Geary Blvd., fire officials said. It was contained just after 6 a.m.
Officials said fire was located in the walls and attic of the structure. Tenants were commended for evacuating as fire crews didn't find any victims after a search of the building.
No further information is immediately available.