The problem is the feedback loop this creates. Higher interest rates are pushing established prices lower and the budget has further weakened the supply of rental properties. Lower established prices then make new development harder to stack up. If fewer projects proceed, fewer homes are built and the housing shortage becomes worse.
A housing shortage does not stop prices falling when borrowing capacity is being hit by higher rates. We are seeing that now. But it does make a prolonged downturn harder to sustain if fewer homes are being added at the same time.
The post-Budget market is therefore becoming more complicated than simply lower house prices. Established prices are falling, rents are still rising, new housing is becoming more expensive and approvals remain below the level Australia needs.
The risk is that today’s price falls make tomorrow’s housing shortage worse. If weaker established prices discourage new development while investor demand continues to retreat, Australia ends up with fewer rentals and fewer new homes. Once interest rates stabilise and demand recovers, the supply problem will still be there, only larger.