The consortium behind Brisbane’s $3.6 billion Queens Wharf integrated resort development has stopped paying builder Multiplex’s invoices in a dispute over delay claims, extensions of time and rising costs, putting completion of the already-delayed project at further risk.

The Destination Brisbane Consortium issued Multiplex with a payment demand for $123,650,000 on July 10 for liquidated damages and has withheld payment of subsequent progress claims the builder has made for the project on the edge of the Brisbane River.