The Orange County Fire Authority on Sunday confirmed that about 115 homes and three commercial building businesses were burned down by the flames.
Officials fear those figures could rise after more of the damage is assessed.
Some fourteen people have been hurt by the fire, including 12 firefighters and two civilians, though the severity of those injuries was not clear.
Airport Fire in Orange, Riverside counties destroys homes
Despite the destruction left behind by the fire, firefighters were making good progress gaining containment, which as of Sunday morning stood at 19%.
Officials said crews were having "notable success in increasing containment" in areas such as Lake Elsinore, Decker Canyon Road and Lakeland Village.
Crews were expected to keep working to clear lines of vegetation and use favorable weather to help put out flames.
"The work of hand crews, and the arrival of additional hand crews, are critical to success during this advantageous window," officials said.
Trabuco Canyon fire was sparked by public works crews performing fire-safety work
The Airport Fire began Monday afternoon near Trabuco Canyon Road in the area of the remote-controlled airplane airport, OCFA Capt. Sean Doran said. Officials said the fire was sparked by a county public works crew using heavy equipment. The cause was deemed accidental.
Fire officials estimate the fire will be fully contained by lines of cleared vegetation by September 24.
City News Service contributed to this report.