Heche was transported to a hospital after the crash.
Her blue Mini Cooper was destroyed, as was the house she crashed into.
LAPD confirmed on Saturday to CBSLA that Heche was behind the wheel of the car.
Actress Anne Heche, 53, dead after suffering brain injury in Mar Vista crash
Rumble
A family representative said Heche was officially declared brain dead Thursday night from injuries suffered in the crash.
