The fire was reported at 12:15 p.m. at a two-story, single-family house at 6090 Guadalupe Mines Road in the southern part of the city. The blaze continued to spread and a fourth alarm was activated at 12:42 p.m. It was brought under control at 3:18 p.m.
Ward said the fire started in one home then spread to the attic of a neighboring home at 6082 Guadalupe Mines Road. Live wires were down in a backyard, she said.
The damage to both homes was extensive, Ward said.
Auralie Saliba, who lives two houses down from the house where the fire originated said she saw "lots of black smoke in the air ... it was bad."
Another resident who lives about half a block away said she saw at least 12 fire trucks.
"It looks like (the house) was pretty destroyed," Lori Duggan said. "The inside looks pretty well torched."
Two adults and three kids were displaced from the first home and two adults and two kids were displaced from the second, Ward said. The American Red Cross provided assistance.
A woman at the home where the fire started was distraught and was taken to a hospital but she was not injured, Ward said. No injuries were reported.
The Santa Clara County Fire Department assisted.