New home sales tumbled 5.3 per cent in February, snapping a four-month run of increases.
The Housing Industry Association's latest report found sales of stand-alone houses fell four per cent, while sales of new units and apartments backpedalled 11 per cent.
HIA senior economist Shane Garrett said the result was disappointing, given how strong sales had been during the previous four months.
"The broadly based decline in activity during February is a reminder of how delicate the nascent recovery in the housing industry really is," he said.
"February's data emphasise how far housing market activity has fallen from the levels of just three years ago.
"The industry is struggling in the current economic environment and strong policy measures will be required to bring market activity back up to levels consistent with Australia's long term requirements."
However, on a more upbeat note, Mr Garrett said the overall direction of housing activity was encouraging, given the gains during the previous four months.
Victoria had the largest decline in detached housing sales at 13.7 per cent, while they declined 6.7 per cent in South Australia and 2.8 per cent in NSW.
Sales rose 1.9 per cent in Western Australia and 0.8 per cent in Queensland.
The report follows the Reserve Bank of Australia's decision on Tuesday to keep the cash rate unchanged at three per cent.
Governor Glenn Stevens said there were a number of indications previous interest rate cuts were having an expansionary effect on the economy.
"Further such effects can be expected to emerge over time," he said.