When Property Becomes an Obsession: Australia, Canada, and the Ghost of Bubbles Past
A comparative look at the four biggest real estate speculation stories of our timeFew economic phenomena grip a society quite like a property bubble. Housing stops being a place to live and becomes the primary vehicle for wealth accumulation, national identity, and political survival. To understand where Australia and Canada stand today, it is worth holding them up against the two most instructive precedents: Japan's catastrophic 1980s bubble — still the greatest asset inflation in modern history — and China's ongoing, slow-motion unravelling that began around 2021.
Japan (1986–1991): The Gold Standard of Excess
To appreciate the scale of Japan's bubble, consider a single data point: at the peak in 1990, the land beneath the Imperial Palace in Tokyo was theoretically worth more than all the real estate in California. The total value of Japanese land reached 5.5 times the country's GDP — roughly four times the total value of all US real estate, in a country 25 times smaller.
The bubble had a specific origin. The 1985 Plaza Accord forced a rapid appreciation of the yen, crushing Japanese exporters. In response, the Bank of Japan slashed interest rates and flooded the economy with cheap money. With nowhere productive to invest, corporations and banks poured capital into land — not to build on it or live in it, but to use it as collateral to borrow more money to buy more land. It was a self-reinforcing loop with almost no regulatory friction: banks lent at 100% LTV against inflated appraisals, and financial regulators looked the other way.
At its peak, Tokyo residential prices hit 13–18x the average household income. The real estate sector, together with construction, accounted for roughly 20% of GDP. When the Bank of Japan finally raised rates in 1989–1990, the loop reversed with devastating speed. Commercial real estate lost up to 80% of its value. Residential prices in major cities fell 40–60% and kept falling for 15 years. Japanese banks spent the entire 1990s quietly insolvent, rolling over bad loans rather than recognising losses. The result was the "Lost Decade" — which stretched, in truth, into two.
The lesson Japan teaches is not just about price levels. It is about what happens when an entire financial system becomes structurally dependent on rising asset values, with no circuit breaker in place.
China (2021–present): History Rhymes
China's property boom dwarfs Japan's in absolute terms and rivals it in structural dependency. At its peak between 2018 and 2021, real estate and construction accounted for an estimated 24% of Chinese GDP — the highest of any major economy in history. Local governments raised up to 40% of their revenues from land sales to developers. Households, lacking access to sophisticated investment alternatives, parked the bulk of their wealth in property. Developers, meanwhile, operated on a "pre-sale" model — collecting payments from buyers years before completing buildings — which allowed them to run leverage ratios that would have been unthinkable in the West.
The trigger for the unravelling was deliberate. In 2020, Beijing introduced the "three red lines" policy, capping the debt ratios of major developers. Evergrande — the world's most indebted property company, with over $300 billion in liabilities — could no longer refinance. It defaulted in late 2021. Dozens of other developers followed. Millions of pre-sold apartments were left unfinished. By early 2026, residential sales area had fallen 13% year-on-year, and Bloomberg Economics estimates China is sitting on the equivalent of 60 million unsold apartments.
The crucial difference from Japan is that China's government is attempting a controlled deflation — restructuring developers, injecting selective liquidity, and supporting demand in tier-one cities — rather than allowing a free-fall. Whether this succeeds is the defining macroeconomic question of the decade. If it does, China avoids a Japan-style lost generation. If the debt restructuring stalls and local government finances deteriorate further, the parallels become uncomfortably close.
Australia and Canada: The Bubbles That Haven't Burst
This brings us to the two countries where the story is still being written.
The Scale of the Problem
By the most intuitive measure — price relative to income — both Australia and Canada have reached territory that genuinely parallels Tokyo at its 1989 peak. Sydney's price-to-income ratio sits at approximately 13–15x. Toronto and Vancouver track closely behind at 12–14x. The national averages are lower, but in the cities where most economic activity concentrates, housing has become as unaffordable, relative to local wages, as it was in Japan at the height of the mania.
The sectoral dependency numbers tell a similar story. Australia's residential property stock has reached 4.5x GDP — compared to 1.7x in the United States. Canada's housing investment as a share of gross fixed capital formation exceeded 40%, the highest in the G7. Both countries have a direct real estate sector contribution to GDP of around 13–13.5%, rising to roughly 20–23% when construction and related industries are included.
Household debt has followed prices upward. Canada now has one of the highest household debt-to-income ratios in the developed world. Australia's mortgage debt load, concentrated among owner-occupiers and investors with variable-rate loans, leaves millions of households acutely sensitive to borrowing costs.
Why It Hasn't Ended Like Japan
Despite the superficial similarities in price levels and sectoral weight, there are three structural differences that have, so far, prevented a Japan-style collapse.
First, regulatory guardrails exist. Australia's APRA requires borrowers to qualify at the actual mortgage rate plus a 3-percentage-point buffer. Canada's OSFI mandates stress-testing at the contract rate plus 2 percentage points. Neither country came close to the 100% LTV, unregulated lending that characterised Japan's banking sector in the late 1980s. When rates rose sharply in 2022–2023, many households were squeezed — but the banking system did not face existential solvency questions.
Second, there is genuine underlying demand. Japan's bubble had no demographic foundation — the country's population was already ageing and barely growing by the late 1980s. In contrast, both Australia and Canada are running some of the highest per-capita immigration rates in the OECD. Australia adds 200,000–250,000 people per year through net overseas migration. Canada's immigration-driven population growth has been among the strongest in the G20. This does not justify any particular price level, but it does create a structural floor under demand that was entirely absent in Japan.
Third, the speculation is mostly residential, not corporate. Japan's bubble was driven in large part by corporations using land as financial collateral in a system of cross-shareholdings and bank relationships. When confidence broke, an entire corporate financing ecosystem collapsed simultaneously. Australia and Canada's overvaluation is driven predominantly by individual investors and owner-occupiers — a more dispersed risk profile that is harder to trigger into a single systemic event.
The Risks That Remain
None of this means the situation is comfortable. Both countries face a version of the same trap: property prices have become so central to household wealth, consumer confidence, and even government revenues (particularly through stamp duties and construction-related taxes) that policymakers are politically constrained from allowing significant corrections. Every time prices begin to fall, rate cut expectations mount, lending rules are loosened at the margin, and immigration targets are pointed to as justification for eternal undersupply.
This is the most Japan-like feature of all — not the price levels, but the political economy of denial. Japan's policymakers also refused to believe that a meaningful correction was possible, and when it came, they delayed recognition of bank losses for years. The risk in Australia and Canada is not a sudden 50% crash. It is a more insidious scenario: a decade of stagnant or slowly declining real prices, depressed household spending as debt service consumes disposable income, and a gradual crowding-out of the productive investment that drives long-term growth.
How the Four Compare
| Japan (1989–90) | China (2018–21) | Canada (2021–22) | Australia (2021–22) | |
|---|---|---|---|---|
| Price-to-income (major cities) | 13–18x | 30–40x (Beijing/Shanghai) | 12–14x | 13–15x |
| RE + construction share of GDP | ~20% | ~24% | ~20% | ~23% |
| Speculation type | Corporate + bank | Developer + household | Mostly household | Mostly household |
| Lending standards at peak | Essentially none | Moderate | Stress-tested | Stress-tested |
| Population growth | Stagnating | Slowing | Strong | Strong |
| Government response | Reactive, delayed | Proactive deleveraging | Rate hikes, gradual | Rate hikes, gradual |
| Outcome | –40–80%, 15+ year decline | Ongoing, 4+ year slump | Partial correction, rebounding | Partial correction, rebounding |
The Bottom Line
Japan remains the cautionary extreme — a bubble that was uniquely dangerous because leverage, speculation, and regulatory negligence all peaked simultaneously with a slowing demographic backdrop. China has built the largest structural real estate dependency the world has seen, and is now paying the price in a slow, managed deflation that will define its economy for years.
Australia and Canada sit in a more ambiguous position. Their price levels are genuinely alarming by historical standards, but their regulatory frameworks, demographic tailwinds, and dispersed risk profiles make a Japan-style generational collapse unlikely. The more probable scenario is a long, uncomfortable adjustment — a period in which housing stops being the engine of wealth creation it has been for 30 years, without necessarily producing the catastrophic implosion that would force a reckoning.
That may sound reassuring. But for the generation currently locked out of ownership, or stretching to unsustainable debt levels to participate, a slow grind is cold comfort. The question both countries must answer is whether they can engineer a soft landing that neither Japan nor China has managed to achieve.
Sources: IMF, BIS, Bloomberg Economics, APRA, OSFI, REIA, Statistics Canada, Brookings Institution, OECD
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