A newly appointed CFMEU boss has vowed to launch a landmark blitz on the housing sector as the union seeks to rebuild its power across the nation, vowing he would not be deterred by any bikie enforcers who seek to stop him.

CFMEU NSW executive director Michael Crosby, who has overseen the departure of nine organisers from the union since he started late last month, set out the blueprint for the union’s future at his first delegates’ meeting in Sydney on Friday, including by extending its reach into non-unionised builders and cracking down on non-compliance across the state.