Usually the owners corporation pays the excess, then recovers it from the responsible party if there is one. If the damage was caused by a specific lot owner's negligence, the owners corporation can recover the excess from that owner.
Excesses on strata policies are often $1,000–$5,000 per claim. For repeated water damage from the same source, some policies impose a higher excess on subsequent claims, which is why fixing the source quickly matters.
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