The number of new housing units completed in the first three months of this year was 6,716, the latest Central Statistics Office figures show.
This is an increase of 19.1% on the numbers completed in the same period last year.
The number of apartments completed was 2,427 - up 41% on the first quarter of 2022.
Apartments comprised more than a third, 36.1%, of the units completed. This is the highest percentage of apartments since the series began in 2011.
According to the CSO, it is also more than double the number of apartments completed in this quarter three years ago and five times the number completed in this quarter five years ago.
The number of units in housing schemes was 3,092, up 10.1% on quarter one 2022 while the number of one-off houses was 1,197 up 7.7% on the same period last year.
By Local Electoral Area, Rathfarnham-Templeogue has the most completions of units at 332. The top ten LEA's by completion were all in the greater Dublin area.
On a seasonally adjusted basis, there has been an increase of 4.9% in new dwelling completions from the previous quarter in the last three months of 2022.
Dermot O'Leary, Chief Economist at stockbroker Goodbody, said on their own, the figures show much needed progress on growing housing supply has continued, but there is some evidence that this progress may be stalling.
"Housing commencements in the twelve months to March 2023 amounted to 27.3K and have flatlined close to this level since last summer," he said.
"Apartment commencements continue to hold up quite well (surprisingly), but viability issues remain here. Meanwhile, planning permissions have been falling recently amid significant difficulties in the planning system."
Meanwhile, new research has found the planning process to be the greatest barrier to increasing housing output.
The survey of those in the development and building community, conducted by Knight Frank, found a third said it is taking between 7-12 months to receive a grant of planning permission from a local authority.
A similar proportion believe an appeal could add 11-15 months to the process and 46% said a judicial review could add more than 21 months.
Overall, a planning application could take in the region of four years to be successful, the research found.
