The volume of production in the residential building sector fell by 16.2% in the third quarter of the year when compared with the previous three-month period.
The finding from the Central Statistics Office comes despite efforts to increase the output of new homes in a bid to solve the housing crisis.
Combined with a 31% slowdown in new housing commencements in October when compared to last year, it paints a concerning picture for the authorities.
However, the most recently released data on completions on a 12-month rolling basis show they were 27,773 at the end of September - up a third on last year.
Overall, the data released today shows that construction production across all sectors fell by 2.7% between July and September when compared with the second quarter.
Compared to the third quarter last year, overall production volumes were down 4.5%.
"With regards to pre-pandemic levels, there was a reduction of 12.3% in construction activity from Quarter 3 2019 to Quarter 3 2022," said Shane O'Sullivan, Statistician in the Business Statistics Division of the CSO.
"During the same period the value of construction increased by 6.1%."
Non-residential building output fell 2.8% during the third quarter, while the civil engineering sector rose by 10.3%, compared to the April to June period.
In value terms overall building and construction dropped by 1.8% on a quarterly basis and increased by 6.0% on an annual basis.