One set of independent experts say Sydney's cracked Opal Tower is "structurally sound" but another group is "reluctant" to advise residents to return home.
The newly-built tower in Sydney Olympic Park was evacuated on Christmas Eve after cracks were found in the building sparking fears it could collapse.
An interim report compiled by university engineering experts Mark Hoffman and John Carter and commissioned by Planning Minister Anthony Roberts was handed to the government on Friday afternoon.
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