August 12— A Seattle Fire Investigator determined a house fire in Ballard was caused by overheated electrical wiring.

At 2:39 p.m., the first 911 call came from inside the house located in 2800 block of NW 75th Street in Ballard. Additional callers reported flames coming from the second floor of the two-story home.

Engine Company 35 arrived to find smoke coming from a second floor bedroom. All of the occupants of the house evacuated before the firefighters arrived. Firefighters raced hose line into the house while a Ladder Company cut holes in the roof to provide ventilation and release all of the built up smoke and gases in the house. The flames extended into the walls, crawl spaces, attic and roof of the house. Firefighters knocked down the flames in less than 20 minutes.

Medics evaluated one occupant for minor smoke inhalation. The patient did not need to be transported.

The fire investigator determined the fire started in the electrical wiring in a crawl space in the upper half of the home. The damage estimate to the home is $50,000 to the contents and $100,000 to the structure.