1 William Street Brisbane Alternative Design Leaked How skyscraper might have looked Vision of the losing Grocon bid for the One William Street tower in Brisbane shows how different the building would have looked to the successful tender. An alternative design for the Queensland government's new headquarters in William Street has been revealed. Images of the Grocon design, which the Newman government rejected, emerged online last week but were hastily removed after the developer was contacted by Fairfax for further information. The Premier, Campbell Newman, and his deputy, the Minister for State Development, Jeff Seeney, favoured a plan by the construction union superannuation fund Cbus for the $653 million office tower on the riverfront block at 1 William Street. An artist's illustration of an alternative design for the Queensland Government's new headquarters in William Street (right) has been revealed. The approved design is shown on the left. Photo: YouTube The super fund's property arm won the tender over Grocon, Lend Lease, Brookfield, Westfield and Leighton Properties. But the public was never given a glimpse of the proposals put to the government. Grocon's design included a futuristic glass facade, featuring LED screen lighting on the sides of the tower, which could display the government logo, as well as images and artwork relating to events including Riverfire. The Grocon design for 1 William Street. By comparison, the Cbus design for a 43-storey skyscraper has a slanted roof, topped with a spire. The Grocon design comprises three lower levels enclosed by glass panels extending in a spiral pattern, while the Cbus design has an open plaza leading to the main entrance. The Cbus development will be the cornerstone of the government's plan for a new riverfront precinct bounded by William and Alice streets and the Riverside Expressway. Work on the Cbus tower is expected to begin early this year and finish by 2016. It will eventually replace the existing executive building in George Street. Grocon will soon begin construction on its $650 million development at 480 Queen Street. In December, Grocon said it had secured mining giant BHP Billiton as the anchor tenant for the Queen Street tower, which will be developed on the site of the scrapped Trilogy Tower. In 2016 BHP will take up 14,000 sq m over seven floors, with a rent of about $800 a square metre and an incentive of 25 per cent. But the question remains, which design do the people of Brisbane prefer for William Street?