The NSW strata Act says the owners corporation “must insure the building and keep the building insured …” and that has to be your focus, rather than worrying aboutvacating the building.
Your insurer may have a policy to cover the renovations or might even say you will be covered anyway.
Leaving the building uninsured, especially when it is undergoing major physical changes, isn’t just a breach of strata law (with a $550 max. fine), it is a huge risk should anything go wrong and a member of the public, for instance, is injured or killed.
If that happened, owners would be personally liable for their share of what could be very serious financial damages claims.
Get insurance.