The NSW opposition has warned that the demolition of Sydney Football Stadium could be delayed after legal advice found flaws in the approval of the first stage of the controversial project.
Opposition leader Michael Daley sought legal advice from barrister Tim Robertson SC who found breaches in the consent issued by the NSW government earlier in the month for the demolition of the stadium at Moore Park.
Mr Daley passed on the advice to four surrounding councils - City of Sydney, Waverley, Woollahra and Randwick - to consider potential legal action.
"These breaches are not mere technicalities. There are major flaws in the planning consent for this stadium," Mr Daley told reporters in Sydney on Thursday.
He warned if legal action was taken, the construction contractor Lendlease would have to stop work "immediately" and demolition of Allianz Stadium would not be able to proceed.
In the legal advice, seen by AAP, Mr Robertson found "egregious breaches" of the State Environmental Planning Policy where he says the government failed to test contaminated land on the site and deferred any investigation until after demolition.
The breach could result in the Land and Environment Court finding the government's consent invalid, Mr Robertson says in his legal advice.
The state government is also required to meet design excellence criteria during the first concept stage of the project which the legal advice found did not happen.
Mr Robertson also found the public exhibition period for the project fell short of the 30-day requirement.
A statement issued by the NSW Department of Planning and Environment said it believed the approval process for the demolition had followed proper process.
Meanwhile, Planning Minister Anthony Roberts said Mr Daley's comments were "lazy" and "a stunt".
"Labor's criticism about design excellence requirements have no basis in fact," Mr Roberts said.
"If this is the kind of legal advice Labor get it's no wonder two of their former ministers are in prison."
