The Western Australian Government has launched a new water management plan for the Peel region which could open up new areas for development.
Water Minister Bill Marmion says the plan, spanning 375 square kilometres between Peel Inlet and the Darling Ranges, will guide sustainable growth in the region.
The Murray drainage and water management plan makes recommendations to improve floodplains and low-lying areas, making the area safer for urban development.
Mr Marmion said the plan is proactive,rather than just identifying sections of the area that are unsustainable for development.
The Conservation Council of Western Australia's Piers Verstegen is urging a cautious approach to any development plans.
"The Swan Coastal Plain has already lost most of our significant wetlands to urban development over the course of the last 150 years, so we need to make sure we protect the last of the remaining wetlands in that area," he said.