A list of 444 buildings across NSW potentially clad in flammable material has been released to the NSW Parliament, but will not be shown to the public after the government deemed the privileged document a security risk.

The list was handed to the NSW Legislative Council on October 31 after all non-government parties voted for the government to turn it over, but the Department of Customer Service said releasing the list would increase the risk of arson and terrorism.

The CFMEU has demanded federal intervention in a wider “national construction crisis”. Credit:Erin Jonasson

In its bid to keep the list secret the government lodged a privilege claim, which included the security risks as well as saying its public release could hurt property owners, potentially mislead the public and breach expectations of confidentiality.

It comes as a trade union demands federal intervention in a wider “national construction crisis,” which is estimated to have cost the country $10 billion over the past decade because of a lack of adequate procurement and infrastructure proficiency within state governments.