Some $3 million in insurance claims have already been lodged by Hobsonville residents after Thursday's tornado.
While Civil Defence's role in the area is diminishing, the clean up continues for residents.
Insurance Council chief executive Tim Grafton says they've so far received around 900 claims for damage to private property.
"Damage to houses, damage to contents in houses, water damage as a result of pipes leaking, and damage to motor vehicles."
Damage to government property, including the Defence Force houses, is not included in the figure.