(Hillsboro, OR)  --  A Hillsboro woman is in custody, following a fire that destroyed her home.  Authorities say the blaze was reported yesterday afternoon in the 600 block of Southeast 20th Court.  Firefighters say the fire had spread from the lower level of the three-story home to brush behind the house, but was brought under control in about 20 minutes.  Hillsboro police say 30-year-old Sara Brown has been charged with first-degree arson.