Planning applications were up by 20% around the country last year, according to figures from the Department of Housing and Planning.
More people were looking for permission to build in Dublin than anywhere else - with Dublin City Council receiving almost 50% more planning applications than in 2014.
More than two-thirds of cases were given a decision within eight weeks.
It is the first time there has been annual growth in the sector since the recession.
"It’s a relative boom in the sense that there are cranes where there weren't any cranes in the past," said Peter Stafford, director of Property Industry Ireland.
"But certainly the figures today are still a long way off the kind of activity we need to see to resolve, for example, the housing crisis, or to bring rents in the office market back to scaleable levels."