Hunt said this demand could not be met by training alone, and it was essential for skilled migrants to fill the positions.
He said offering more money for vacant positions was not the answer as there simply were not enough construction workers in the country.
"In order to make sure we meet the construction sector demand we are going to have to bring in people from offshore. We can't train our way out of it and we will need to continue to use immigration to fill skill-gaps to meet all the work we have coming up."
He urged the Government not to make it any more difficult for skilled migrants to come to New Zealand, following its tightening of the immigration points system last month.
According to the July 2016 MBIE report, Auckland has the largest construction workforce requirements in New Zealand, needing just under 185,000 construction-related employees by 2021. Waikato and Bay of Plenty construction-related employment demand is set to increase by 9 per cent by 2021, and 10 per cent in Wellington. In Canterbury, demand for construction workers is forecast to steadily decline from this year.