The Independent Planning Commission has been asked to review a decision that has prevented 180 homes being built at 505 Minmi Road Fletcher.
The site's owner Peter Durbin confirmed he had requested the review as part of an appeal of the recent Department of Planning ruling.
It followed an Environment Protection Authority submission relating to the impact of odours, gases and air emissions generated from the Summerhill Waste Management Centre.
Even though the houses in proposed development would be further from the waste cell than some existing homes, the proponent has been requested to conduct a 12 month study into how 505 Minmi Rd could be affected.
Significantly, an equivalent request was not made of the developers of the adjacent Minmi Estate development that was approved six months ago.
Planning consultant Stephen Barr said the lack of consistency would be raised as part of the appeal.
"We will need some technical advice that will look at the issues raised by the EPA," he said.
"But I think it (the EPA request) also raises the question of if we're being impacted by the emissions or the environmental matters as a result of the waste management facility then there's obviously land a lot closer which is being impacted too."
Mr Barr also raised concern about the council's dual role in managing the waste facility while also providing advice to the department about the future use of surrounding land.
"You have got a situation where one part of the organisation is endorsing the need for more studies to look at the impact of the waste facility and the other part is saying the waste facility is fine," he said.
"That's a very difficult position to be in. Perhaps the Department of Planning should have taken the council's planning powers away to resolve that issue."
Mr Durban has ruled out selling the site to the state government for inclusion in a regional green corridor, however, he has agreed to dedicate half of the land for conservation.
Mr Barr said the housing project would generate about $5 million in developer contributions for the council.
About a third of the contributions would go to local roads.
Mr Barr said the biggest issue raised while the proposal was on public exhibition was traffic.
"The amount of traffic that these houses (proposed for 505 Minmi Rd) would generate in the broader scheme of things is not very much at all, but the project will make millions of dollars to be spent on roads out there," he said.
