The construction industry will need more than 40,000 new workers each year over the next five years, the CITB has found.
Its latest half-year Construction Skills Network survey showed that 40,280 additional workers could be required every year to deliver the forecast growth through to 2019, and to replace those retiring from the industry.
In January, the CITB predicted the industry would need to recruit 36,400 workers a year over the next five years, or more than 182,000 over the period to 2018.
The 11 per cent increase in the number of construction jobs needed follows an improving industry growth forecast, the CITB said.
Construction is expected to grow by 2.9 per cent a year from 2015 to 2019, up from 2.2 per cent per year from 2014 to 2018.
All regions are expected to see output and employment growth through to 2019, with the exception of the West Midlands and Yorkshire and Humber.
CITB chairman James Wates said the housing and infrastructure sectors were bringing confidence back to the industry, but warned of the challenges in adapting to growth.
He said: “New technologies, a new generation of nuclear power stations, business information modelling and offsite manufacture means that we need to adapt if we are to exploit the opportunities that present themselves as the industry continues to grow.
“Skills are the oxygen of the sector and construction needs to invest in its workforce - upskilling those who already work in the industry and attracting new talented recruits to offset those who are due to retire in the next five years.
“We are working closely with industry and government to proactively address these challenges through Construction 2025, the Industrial Strategy.”