The construction sector has regained less than one third of the jobs lost during the economic crisis, new research from the Central Bank shows.
The research - Where are Ireland's Construction Workers? - points out that one in every two workers who lost their jobs in Ireland between 2007 and 2012 had previously been employed in construction.
The Central Bank said while there had been a strong recovery in employment in other sectors, the numbers in construction employment during the first quarter of 2017 was 46% lower than in 2007.
A total of 236,000 people were employed in the construction sector in 2007, while the figure for 2017 stood at 127,000.
However it also pointed out that the 2007 level of construction employment sould not be considered sustainable.
The Central Bank research also found no evidence of the existence of a large number of unemployed former construction workers in 2017, which suggests that a large proportion of construction workers who had lost their jobs during the crash are likely to have emigrated.
Today's research, which is part of the Central Bank's second quarterly bulletin of 2018, also reveals that the average age of construction workers has risen significantly from 35.6 years in 2007 to 42.3 in 2017.
Construction workers in 2017 are also more likely to be Irish nationals and have higher levels of educational attainment, the Central Bank added.
The bank said that as construction output picks up here, the sector is likely to require a significant inflow of labour from abroad to fill vacancies created by the renewed demand.