Cal Fire said the fire remained at 417 acres by Sunday night, with containment up to 43%.
The fire began on Friday morning in the area of Highway 20 and Glenhaven Drive near Clearlake Oaks.
Cal Fire said ongoing damage assessment has revealed two residential structures have been destroyed and one additional single-family residence was damaged.
Assigned resources include 285 personnel, 24 engines, nine water tenders, two dozers and 10 hand crews, Cal Fire reported.
All evacuation orders have been downgraded at this point. Evacuation warnings remain in place for the following zones: GLE-E072, GLE-E094-A, GLE-E094-B, CLO-E073, CLO-E082, CLO-E098, CLO-E099, CLO-E102 and CLO-E106.
Information on evacuation zones can be found here.
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