Work is back on at a site which just last week had no health and safety committee, first aid shed, or proper emergency access.

The Canberra construction effort was shut down over safety concerns, which have now reportedly been rectified.

Work stopped over concerns raised by WorkSafe ACT at the Kappelle construction site in Braddon.

CFMEU branch secretary Dean Hall says the dire safety situation has now been turned around.

“It looks like a different site than it was a week ago. A lot of time and effort has been put into improving the access egress, electrical safety, and first aid and amenities on the site,” Mr Hall said

“We've got a lunch shed, and a first aid room that can give first aid to people if they've got minor injuries on the site.”

“We've got a new bank of toilets with hand-washing areas. We've got stretcher stair accesses in place. You can clearly get a stretcher into all areas of the job now.”

With construction efforts expanding in many sprawling new developments, many workers are being exposed to projects of a larger scale than they are used to. The expansion should come with a renewed rigor in safety checks, the union official said.

“What you're seeing is vastly different attitudes to safety, and vastly different abilities to deal with safety issues, within metres of each other,” Hall said.

“You're seeing four builders in a row building multi-storeys in a residential area and one's got the idea, the next one doesn't.

“It's a tough time at the moment. It's a hard process because a lot of these builders don't understand their responsibilities. They've bought safety systems off the rack ... they've signed them and they've put them on the shelf and haven't read them,” he said.

“That's scary because now they've got the responsibility of hundreds of people's live in their hands.”