The average asking price for a home rose by 5.9% between July and September when compared to the same time of 2024, the latest report from listings site Daft.ie.
It represents a slowdown on the 7.5% rate of asking price inflation at the start of this year.
It means that listed prices are now 39% above their pre-Covid levels, but they remain 10% below their Celtic Tiger peak.
Daft.ie said the national average price of a three-bed semi-detached property in the third quarter reached €421,261.
Meanwhile, the median price of a newly built home in the year to June was €435,000, an increase of almost 9% on the same time last year.
Today's report shows there were a total of 11,925 second-hand homes for sale nationwide on September 1, a marginal rise of 1% on the same date a year ago, but availability is less than half the 2015-2019 average.
It also noted that an increase in the availability of homes for sale in Dublin offset falls elsewhere. Housing stock in Dublin rose 8% year-on-year, while Connacht-Ulster also recorded an increase of 3%. But there were falls of 9% in the four other cities - Cork, Limerick, Galway and Waterford - while Leinster saw a decrease of 5%.
Daft.ie said the typical property sold in the third quarter of 2025 went for 7% more than its initial listed price, an all-time high for a series that extends back to 2010.
The gap is largest in Dublin at 8.5% and Munster at 8.4%, although all regions are seeing record gaps, which Daft.ie said reflects falling activity in the second-hand market.
Daft.ie said that while prices were on average almost 6% higher than a year ago nationally, there were some important differences, with the lowest inflation seen - once again - in Dublin, where prices were 4.5% up year-on-year.
"Price increases in Munster (+5% annually) and across the four other major cities (+5.8% on average) were also below the national average, which was dragged up by substantially larger increases in Leinster (outside Dublin; +7.2% annually) and Connacht-Ulster (outside Galway; +8.7% on average)," it added.
"Over the last two decades, the housing market experienced a wide variety of conditions. Nonetheless, for over half that span, the predominant theme has been a shortage of supply," Ronan Lyons, Professor in Economics at Trinity College Dublin, said.
"There are some indications in this latest report that new homes are sustaining activity levels in the market, even though construction is still low compared to underlying need," Professor Lyons said.
"More construction - and a healthier second-hand segment - are the key ingredients needed if the story of the Irish housing market over the years to come is to be a happier one," he added.
