The blaze was reported at 6:43 p.m. at 2417 and 2425 West Park Ave. and was quickly upgraded to a second alarm at 6:48 p.m., Stallard said.
By 7:30 p.m. the fire was still actively burning the attic, sides and gas meters of the buildings, which were causing gas to vent from the single-level homes.
Stallard said the area has been taped off as a precaution because overhead power lines have been affected by the flames. The Pacific Gas and Electric Co. was called to the scene of the fire and cut power to the lines, according to Stallard.
There have been no reported injuries as a result of the fire, he said.