Wellington Water is investigating the cause of a flood in Lower Hutt which was so deep it reached calf height.
Footage of the flooding supplied to the Herald showed the floodwaters lapping at a building on Conolly St as cars slowly drove through the water.
The surreal video, shot from a car window, showed water deep enough to have waves in it as cars tried to make their way through.
Kristee Fifita, who shot the video, told the Herald the water was roughly up her calves.