GREEN waste disposal, a motorsport precinct and a bridge to Russell Island are all issues Redland city faces if 6117 hectares of sugar cane land at Rocky Point is rezoned for a satellite city between Brisbane and the Gold Coast.
The Norwell Valley site, within Gold Coast City Council, would become Australia's largest masterplanned city, and a rival to Redland city's proposed Shoreline estate planned for the northern side of the Logan River.
Bridge to Straddie campaigner Joyce Webb, from Capalaba, said the plans to sell the Gold Coast cane land en masse added weight to the pro-bridge argument.
She said developers of the Rocky Point "city" would attract tourists to the area if the islands were bridged.
"This is where the bridge was going to be in the first place and it now makes even more sense after this city development was proposed," she said.
"Instead of the Weinam Creek priority development area, the state government should instead build the bridge to Russell Island from Rocky Point.
"This would be a fraction of the cost of the planned works at Weinam Creek, it would be a shorter trip and it is vitally needed now."
Russell Island real estate agent Keiran Fitsimmons is supporting Mrs Webb and plans to send out 10,500 petition letters to all in the state electorate of Redlands.
The Rocky Point area, part of Gold Coast City Council, has also been earmarked for a proposed motorsport precinct, which raised concerns from residents in southern Redland Bay last year.
In December, Redland Bay resident Mark Robertson asked council to write to the Gold Coast and call for an independent noise assessment of the speedway, which would replace Archerfield.
The "Adrenaline park", proposed for the southern side of the Logan River, would be about 300m from backdoors in Lagoon View Road and Muriel Street.
“The announcement for these cane fields to be a master-planned residential site would now seem to be in direct conflict with the Love Road speedway proposal and would be out of character for such a development,” Mr Robertson said.
Another issue Redland faced if the Rocky Point city got the go ahead, was where Redland city's green waste will be disposed.
Cr Paul Bishop said if the Rocky Point city went ahead, council would have to find a new place to take its green waste.