Figures from home guarantee scheme Homebond show that the number of new homes registered last month was down by almost 70% from June last year.
Homebond said 108 new homes were registered in June, down from 357 in June 2009. The May figures had shown a pick-up compared with the same month in 2009.
The Homebond figures are seen as an indicator of future housing activity. Homebond is the bigger of two companies which provide registration figures, the other being Premier.
Only 59 new homes were registered in Dublin in the month, with 14 in Cork. There were no new homes at all registered in 10 counties.
House prices down 7% this year
Earlier, figures showed that asking prices for homes fell by 3.4% in the second quarter of 2010, bringing the fall for the year so far to 7%.
Property website MyHome.ie, which compiled the figures, says the latest quarterly fall is the 14th in a row and brings the total decline from the peak in late 2006 to almost 30%.
But the survey shows that there are some signs that the three-bedroom market in Dublin is stabilising, with asking prices for three-bedroom terraced houses increasing by 4%.
The average asking price for a home nationally is now €291,278 compared with €301,449 three months ago and €337,600 12 months ago.
In Dublin asking prices overall fell by 4.5%, bringing the total fall over the last 12 months to 17%.
New homes saw a higher fall compared to second hand homes during Q2, falling by 4.2% compared with 3.3% for second-hand homes.
Limerick city saw the biggest decrease of the main urban centres, with the median asking price falling 7.3% to €222,500. In Cork the fall was 5%, while in Galway it was 3.6%.
