The fire began shortly after 11:30 a.m. Friday in the area of Hillcrest and Henderson drives in Glenhaven before burning east and threatening a large swath of residences in Clearlake Oaks.
Officials said the Glenhaven fire destroyed two structures and damaged a third.
On Tuesday, the last of the evacuation warnings were lifted and the Board of Supervisors ratified a local emergency declaration issued by Sheriff Rob Howe on Friday.
With the fire now 100% contained, fire suppression repair work has begun. Officials said crews will patrol the area for hot spots over the next few days.
Resources that remain assigned to the incident include 52 personnel, two engines and two crews, Cal Fire reported.
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