The three consortiums in the running to build the $900 million Burswood Stadium have submitted their top-secret bids to the State Government.
Each cost as much as $10 million to develop and is several thousand pages long, with the details one of the State's most tightly guarded secrets.
The strict security is to ensure stringent probity as the Government's stadium steering committee embarks on a four-month process to pick the winner.
The three consortiums, which all have experienced financiers of public-private partnership infrastructure projects, are:
·Confidem, featuring construction company John Holland, financier Capella Capital and facilities manager Spotless.
·Evolution Stadium, featuring financier Plenary Group, builders Bouygues and Probuild and conglomerate Honeywell.
·WESTADIUM, featuring PPP specialist John Laing and Brookfield Multiplex.
Sport and Recreation Minister Terry Waldron said the consortiums spent five months, including hundreds of hours of meetings with State officials, on their bids.
"The key consideration for the State is that the selected proposal delivers a solution that meets our requirements and provides value for money for WA," he said.
The consortiums were given minimum standards for fans, teams and media, design innovation and dozens of other criteria.
The winner will not only design and build the stadium, but finance about 30 per cent of its capital costs and enter a contract to maintain it for 25 years.
The Government hopes to announce a preferred tenderer by April and award the contract by July, with construction to start by the end of next year.
A new artist's impression of the layout, released yesterday, confirms it will have a mostly parkland setting with no adjacent commercial precinct.
However, the stadium itself will feature retail, food and drink outlets, with some possibly to operate on non-game days, plus temporary "pop up" facilities in the surrounding plaza and precinct.