Plan for ‘sea of roofs’ will destroy last koala habitat in western Sydney, critics say

Environment groups call on federal minister to reject NSW government’s ‘deeply flawed’ Cumberland Plain conservation plan

A plan to build up to 73,000 houses in new suburbs in western Sydney relies on conservation promises that might not be delivered until decades into the future, environment groups say.

The New South Wales government recently approved the Cumberland Plain conservation plan, a major planning policy that will guide the development of four new urban growth areas from Penrith to Wilton, including the western Sydney Aerotropolis.

But critics say it will turn the already overcleared Cumberland Plain into a “sea of roofs, concrete and asphalt” and destroy critically endangered habitat for Sydney’s last koala populations.

“It seeks to authorise the destruction of some of our most threatened animal and plant communities now, for promised but unproven future environmental gains,” Nicola Beynon, the head of campaigns at Humane Society International Australia, said.

“The Cumberland Plain conservation plan demonstrates the flaws in our current environmental laws,” Beynon said.

The National Parks Association of NSW is calling on the federal environment and water minister, Tanya Plibersek, to reject the “deeply flawed” plan, which would see 11,000 hectares (27,000 acres) of land developed for new housing and roads up to 2056.

It proposes clearing 1,754 hectares of native woodlands and grasslands, including critically endangered Cumberland Plain woodland and shale sandstone transition forest.

Beynon said that if approved, the plan would allow for the destruction of more than 500 hectares of critically endangered habitat.

The plan has been designed at a landscape or regional scale, which means it aims to consider the cumulative environmental impact of 35 years of proposed development over a large area.

It does this by designating so-called “urban capable” areas for housing estates and roads, while designating high-quality bushland and nature corridors as conservation land.

The process adopted by the Perrottet government gives upfront environmental approval under the state’s laws to developers that plan to clear land in the urban zones.

The plan is still being assessed at a federal level and if approved would also grant federal environmental approvals upfront.

However, environment groups are concerned the conservation components of the plan meant to offset the clearing of critically endangered ecosystems will take, in some cases, two decades or more to deliver.

The government proposes compensating for the environmental damage through a combination of new reserves, purchase of biodiversity credits and other measures such as revegetation to meet an offset requirement of 5,325 hectares.

It also plans to build more than 100km of exclusion fencing to protect koalas – which would require negotiation with hundreds of landholders.

The reserves will include up to 1,830 hectares for a new Georges River koala reserve as well as two other reserves the government describes as being “under investigation”.

The plan itself notes that some of the offset targets might be difficult to meet and that while early work to acquire the necessary land for the new parks is under way, the process of acquiring all of the necessary land and protecting it could take 15 to 20 years to complete.

In 2020, an audit of a similar process that was used to develop new housing in Melbourne found that promised conservation reserves had not been delivered and similar concerns have been raised about conservation commitments for past suburb developments in Sydney.

The NSW audit office has published a scathing review of the state’s biodiversity offset scheme, finding it was ineffective and there was an undersupply of offset credits for the habitats and species most under pressure.

Gary Dunnett, the chief executive officer of the National Parks Association of NSW, said the plan was ambiguous in its conservation commitments and deferred genuine action to protect high-value areas for decades.

“When you look into the detail, two of (the reserves) are nothing more than a nod towards investigating the possibility of creating additional parks at some unspecified point in the future,” he said.

“Far from creating national parks, this plan expects us to have confidence in a vague gesture towards notional parks.”

He said it was “even more disturbing” that the creation of the reserves was at the expense of habitat that would be destroyed elsewhere on the plain and the group was calling on Plibersek to deny approval and “return this deeply flawed plan back to the NSW government”.

Beynon said until the federal government introduced strong national standards for environmental protection – a key recommendation of the Graeme Samuel review of environmental laws – “regional plans such as these will continue to drive Australia’s extinction crisis”.

A spokesperson for the federal government said neither the minister nor the department could comment on projects that were still being assessed.

A spokesperson for the NSW Planning and Environment Department said because the development areas had been identified upfront, the conservation measures were based on an understanding of how the environment would be affected over a long period of time.

They said $114m was being spent on early conservation actions, including purchasing 177 ha of land and transferring 54 ha to the national parks service for the Georges River koala reserve.

They said the government expected to receive federal approval in coming months.


Lisa Cox

The GuardianTramp

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