Mrs Ottley said she believed there were three young men in the car and it had lost control while taking a corner in damp conditions.
The car had smashed through a safety fence running along the footpath, crashed into a steep bank on Mrs Ottley's property, and rolled 15m towards the house. The car was finally stopped by an aluminium pole holding up a shade sail.
The only damage was done by the pole as it bent and smashed into the power box.
Mrs Ottley said it was lucky the car or the debris from the wall did not come in through her bedroom window.
"I'm fortunate that the house isn't damaged. The section is, but no one was hurt so that's good," Mrs Ottley said.
And she had some ideas about how to deal with the driver and his friends.
"I think they need a good spanking and be made to clear up the mess because I have to get help to do that," Mrs Ottley said.
She hopes the council will install a steel barrier to replace the damaged fence.