Orakei resident Stephen Coulthard said he was driving home along Tamaki drive when his 10-year-old daughter, Louise, asked him, "Dad, why is there a house on a boat?"
He said he did a double take when he looked out to sea.
"I was driving home with my kids in the car and there it was. I have never seen anything like it, only on the TV on one of those house-moving shows on Discovery Channel.
Mr Coulthard said there was lots of people stopping and pointing at the strange sight.