New figures from Corelogic show the share of purchases by first home buyers in the first quarter of the year fell from 24.8 percent six months ago to 21.5 percent - the lowest level in three years.
But are there early signs of a change? The government has introduced higher investor deposit requirements and tax changes for property investors.
Corelogic's chief propery economist Kelvin Davidson says the tide may be starting to turn.