The Santa Rosa Fire Department responded to the blaze in the 600 block of Charles Street at about 7:25 a.m. and found a single-story home burning.
The fire caused $150,000 in damage to the structure and $5,000 to the contents, the fire department reported.
An adjacent home and an outbuilding were briefly exposed to heat.
Fifteen firefighters controlled the fire at about 8 a.m.
