The Court of Appeal has also rejected the five owners' case and gave more background, saying how the wedding-cake style block was built in 2003.
"For some years prior to 2013 there were concerns about the weathertightness of the level four apartments because of leaks into some level three apartments," the appeal court said.
The Supreme Court noted how the appeal court had rejected the owners' case in its decision of June this year.
"The Court of Appeal dealt with six grounds of appeal from the High Court
decision. It found against the applicants on all of them," the Supreme Court said.
The appeal court said costs originally estimated at $1.7m in 2013 had climbed to about $3m.