For the past three decades, buying a home in Sydney has been regarded as one of Australia's safest investments. Surging property values transformed real estate into a key engine of household wealth creation. Now, however, cracks are emerging in Australia's property boom, with the fallout beginning to spread through the financial system. As mortgage rates climb and government budget measures tighten tax concessions on investment properties, price declines are sweeping across the nation.
According to the latest data from real estate consultancy Cotality, Sydney home prices have dropped roughly 7% since peaking in February, with 93% of suburbs across all capital cities recording price falls. The housing downturn is also starting to weigh on Australia's major banks, with home loan applications down as much as 20% since the budget was unveiled. Meanwhile, Sydney-based major developer Bathla Group entered voluntary administration last week with debts of A$3.3 billion (US$2.4 billion), raising concerns that more highly leveraged builders could be heading for trouble.
After decades of price growth driven by leverage and policy support, Australian policymakers now face a challenge common to many nations globally: cooling an overheated property market and improving housing affordability, while avoiding a drag on the economy at a time when inflationary pressures are pushing up borrowing costs. If the housing slide persists, the impact on Australian households could be particularly acute. Data from Commerzbank shows real estate accounts for approximately 60% of Australian household wealth, and a consumer confidence indicator fell to "extremely pessimistic" levels in June.
Nicola Powell, chief residential economist at property website Domain, noted that when people lack confidence in their financial position or the broader economy, they are unlikely to make purchases of high-value assets like property. Housing affordability is also putting growing pressure on the Australian government. According to Demographia's 2024 data, Sydney's median house price is close to 14 times residents' average annual disposable income, ranking second only to Hong Kong among global cities. Cotality data shows that nationally, Australian house prices have risen about 67% over the past decade, with Brisbane, Adelaide, and Perth all seeing prices more than double.
Australian Treasurer Jim Chalmers unveiled new rules on May 12 restricting "negative gearing" for investment properties, targeting what he described as "unfair" elements within the housing and tax system. Negative gearing allows losses from investment properties—where deductible expenses exceed rental income—to be offset against other taxable income such as wages. The new rules will take effect from July 2027. Except for new constructions, investment properties purchased after May 12 will no longer qualify for negative gearing benefits. Through this measure, the Australian government aims to reduce the appeal of purchasing multiple investment properties, channel capital into new home construction, and make it easier for first-home buyers to enter the market.
Powell said this policy shift affects a considerable number of buyers, and since the scale of first-home buyers is insufficient to fully replace property investors, the market's operating rhythm will be noticeably different going forward. The real impact of reduced investor participation on the property market is only just beginning to emerge. Cotality's national home value index fell 0.9% in August, marking the fifth consecutive monthly decline and a 3.6% drop from the March peak, with Sydney prices down 1.4% in August. Property transaction volumes are also contracting. Cotality's quarterly estimates show national residential sales volumes down 15.5% year-on-year, sitting 11.5% below the five-year average. Brisbane, Perth, and Sydney recorded the largest declines in transaction volumes, each down more than 20% year-on-year.