A fallen oak tree on Mt Smart Rd, Onehunga.

A Housing New Zealand complex in Onehunga has been damaged after a large oak tree fell on it.

"After the crash everything went quiet," local resident Steve Carter said.

Carter, who lives in a flat on the Mount Smart Rd property, said he heard a giant oak tree fall over about 10pm on Saturday.

Branches smashed through a window.

"I heard a great big crash, branches breaking," Carter said.

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"I though, what was it? Then another one of the tenants called the fire brigade and checked everyone was safe.

"It smashed though three different flat windows. I thought that we're all very lucky as no body was hurt."

He said it would be cleaned up professionally on Monday.

The strong winds have left a trail of downed trees and powerlines across Auckland.

 - Stuff