Major construction of the Chambers Flat wastewater treatment plant has been marked with a sod-turning in Logan, as the Queensland government says the infrastructure will support 20,000 future homes. Premier David Crisafulli and Deputy Premier Jarrod Bleijie attended on Sunday (11 October), with the government's announcement confirming a $136 million contribution through the Residential Activation Fund.
The plant is being built on part of a 144-hectare site at Pleasant View Road, Chambers Flat, to service growth in Park Ridge, Logan Village and Yarrabilba. Logan City Council's current project information says construction is underway and completion is expected within the next two years. The housing figure refers to development the wastewater capacity will enable in the years ahead.
Logan Mayor Jon Raven described the start of major construction as a milestone for the city. “This is the type of infrastructure that makes new homes possible,” he said in the joint statement. Raven said modern housing developments depended on wastewater infrastructure, alongside the roads, parks and water services residents need.
The state funding was announced in June 2025, rather than at this weekend's ceremony. In its November 2025 project update, council said design and site investigations were progressing, with construction activities scheduled from early 2026. That update forecast first flows of effluent to the plant in mid to late 2028.
The same update reserved seven hectares for the treatment plant, including potential future stages, within the larger site. Council said the facility would use membrane bioreactor technology to produce Class A recycled water, with as much of the surrounding land as possible remaining green with irrigated vegetation.
The masterplan also incorporated feedback from the project's Community Reference Group. Council's update outlined a 50-metre-wide screen of native planting to improve the existing wildlife corridor. The group remains part of the council's arrangements for communication with affected residents and feedback on the plant and its connecting trunk infrastructure.
The funding's importance to council's finances was outlined in MyCity Logan's reporting in July 2025. Raven told the publication council could not have afforded the infrastructure without the state contribution. It reported his warning that, without that support, Logan would have had to sacrifice other infrastructure or raise rates to fund the plant.
A separate connection remains at the planning stage. Logan Water says it is proposing site investigations and preliminary design for a pipeline carrying wastewater from Park Ridge developments to Chambers Flat. Council expects that pipeline to be required in the next five to 10 years, identifying another part of the infrastructure needed to service the area's future housing growth.