"I think she was doing a three-point turn in the driveway."
He believed she may have been intending to push the brake pedal but instead "hit the gas".
Hall said the building damage looks serious.
"It looks like she's hit the column at the back there. That's structural. It's bent. There'll be some reasonable building work to repair it."
As he was speaking to the Herald, a glazier arrived to get started on making the building secure. Insurance assessors are next on his list.
A resident on the street, Greg Wiggins, told the Herald he heard a loud noise and rushed outside to investigate.
"I put my head around and saw a car had gone through the hedge and into the living room.''
Wiggins ran over to check if everyone was okay.
"I pulled back the curtain - the Holland blinds - and there was the car, sitting in the living room. The front bumper had gone through the opposite wall.
Wiggins said emergency services arrived quickly at the scene and they established no one was physically hurt.
However, the woman appeared shaken by the incident and was seen inside an ambulance a short time later.
Another resident, Joanne Whitney, was working at home when and happened to have noticed a maroon car drive past seconds before hearing "an almighty crash".
"I went outside and looked up and down the street and couldn't see any crashed vehcles. Then I saw a woman, who had been doing some gardening, pointing to the house.
"That's when I saw this big gaping hole and realised the car had gone straight through the house.''
It is understood the owners of the house were not there at the time.