Macquarie Fields MP Anoulack Chanthivong has accused the government of "mismanagement" and "questionable spending" in its handling of the relocation of Glenfield's Hurlstone Agricultural High School.
Mr Chanthivong said email exchanges between Department of Education officials demonstrated a desire to avoid public scrutiny of the school's relocation to Hawkesbury, as well as the new selective school being built at the site.
"The absence of a formal, independently managed, Value Management Study is a major flaw in the project development process which, in large part, has lead [sic] to the position that the project finds itself in today," one of the emails discovered in Freedom of Information documents read.
Another also suggested an Assurance Review should be kept in draft to avoid it becoming the subject of a GIPA request.
Mr Chanthivong said the emails pointed to an air of secrecy.
"The emails from the Department are very revealing and I believe show the sale of that pristine land is not beneficial to our community but only to greedy developers," he said.
"The projects have questionable spending and I think the community deserves answers."
However, Mr Chanthivong could not provide how he believed funds were being questionably handled.
A Department of Education spokesman said both the relocation and school upgrade projects were on track.
"The upgrade of the existing Hurlstone Agricultural High School to create a new selective high school in Glenfield is on schedule and nearing completion," he said.
"The relocation of Hurlstone Agricultural High School to a new location within Western Sydney University - Hawkesbury campus, is progressing through the planning and design process."
However, Advertiser questions about the projects' budgets went unanswered.
More information about both projects can be found at the Department of Education's website: schoolinfrastructure.nsw.gov.au.