Department of Labour spokeswoman Rebecca Shannon confirmed health and safety issues had been raised relating to The Block properties.
"We're working with TV3 to resolve these [issues] and will continue to work with them as required. If any more complaints are made, they'll be investigated," she said.
Weaver feared the show's popularity could make the street even more hazardous.
"There've been some near crashes in the last couple of days with cars slowing down to get a peek ... There's no-one controlling the road. The street is a major route for school children as young as 6 walking on the road alone," he said.
TV3 spokeswoman Rachel Lorimer dismissed the concerns.
"Safety is paramount to us and everything has been done by the book. We've had relevant visits and inspections. The contestants don't work on any part of the show they're not capable of - we have professional builders on location. All the rest is speculation."
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