A wall on a building site has collapsed in Melbourne just 24 hours after the union, WorkSafe and the council decided it was too unsafe to be demolished.
The wall of the former Royal Park Hotel, on the corner of Queensberry Street and Howard Street in North Melbourne, collapsed about 8.30am on April 20.
A woman passing by narrowly missed being hit by falling bricks, the Construction, Forestry, Mining and Energy Union (CFMEU) says.
"The collapse has narrowly missed a woman walking past with a pram," CFMEU Victorian spokesman Clancy Dobbyn said.
Victoria Police said no one was injured in the collapse.
WorkSafe is investigating.
The union says it raised safety concerns the previous day about the way the former hotel was being demolished.
The union wanted to stop the demolition process, following an inspection that found an asbestos check had not been finalised.
WorkSafe inspected the site on April 20 and ordered the demolition company not to work on the wall but allowed it to continue working on other parts of the building.
It's understood a City of Melbourne building surveyor also had reservations about the wall, prompting the council to issue an emergency order for all work to be stopped.