Figures from home guarantee scheme Homebond show that the number of new homes registered last month was down by almost 40% from August last year.
Homebond said 149 new homes were registered in August, down from 245 in August 2009. This is an improvement from July, however, as only 61 homes were registered in than month.
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 45 new homes were registered in Dublin in the month, with 22 in Cork. There were no new homes at all registered in seven counties.