The car crossed the front yard, and partially entered a front room, badly damaging the pillar of the garage.
Acting Sergeant Steve Giuliani, of Mornington police, said the woman suffered non-life threatening injuries in the incident at 3.20pm.
The woman, who is believed to be from Mornington, was taken to hospital by ambulance.
SES and engineers were stablising the front of the house.
Nobody was at home at the time of the accident.
Investigations into the cause of the accident are on-going.
