When a Housing Boom Turns to Bust

Patrick Boyle
Patrick BoyleJun 6, 2026

Why It Matters

New Zealand’s housing collapse shows how politically driven price inflation creates systemic risk, offering a cautionary template for other markets confronting rising rates and unaffordable home prices.

Key Takeaways

  • New Zealand home prices peaked at 35 times median income.
  • Nationwide prices fell 16%, Wellington down 27% since 2022.
  • Politicians sustain bubbles by subsidizing mortgages and restricting new builds.
  • Land value taxes could curb speculation without harming productivity.
  • Rising rates freeze US buyers, but NZ borrowers face payment spikes.

Summary

The video examines New Zealand’s recent housing bust, using a $1.81 million "dunger"—a dilapidated three‑bedroom home—as a vivid illustration of how wildly inflated prices have become. At the 2022 peak, an average Auckland house cost 1.4 million NZD, roughly 35 times the median income, before falling 16 % nationwide and up to 27 % in Wellington, leaving many owners in negative equity. Key drivers include political incentives that keep house prices rising: mortgage subsidies, first‑home buyer grants, tax breaks for landlords, and restrictive zoning that limits new supply. The speaker cites Henry George’s 19th‑century proposal for a land‑value tax as a rare bipartisan solution that would tax unearned land appreciation without discouraging productive investment. Notable examples underscore the human cost: a couple sold their home at a loss to live in a bus, and over 2,000 construction firms have gone insolvent since 2022. The Reserve Bank of New Zealand’s split‑vote on rate hikes—resolved only by Governor Anna Bremen—highlights the tension between curbing inflation and protecting homeowner wealth. The broader implication is that any economy built on the assumption of perpetual house‑price growth is vulnerable to sharp corrections when interest rates rise. Policymakers worldwide face a choice: continue subsidising a fragile bubble or adopt reforms—such as land‑value taxation and relaxed zoning—to restore affordability and protect the construction sector.

Original Description

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A three-bedroom "dunger" in New Zealand with peeling paint and boarded-up windows sold for 1.81 million dollars at the peak of the boom. A few years later, prices had fallen by as much as a third in real terms, recent buyers were trapped in negative equity, and thousands of construction firms had gone under. In this video we look at how a national housing boom turns into a bust, why house prices became so unaffordable in the first place, and what it means for an economy when the family home stops being a place to live and becomes a leveraged investment.
Along the way we cover the interest-rate math behind home affordability and why falling mortgage rates inflated prices for forty years, the politics of why governments keep house prices rising, why high housing costs drive young workers to emigrate, and the lessons from past property crashes in Japan, the United States, and Ireland. We also look at Henry George's argument for a land value tax, Edward Leamer's "Housing IS the Business Cycle," and why an efficient property market matters for the whole economy. Whether you're in the US, UK, Canada, Australia, or anywhere else watching house prices climb out of reach, the underlying dynamics are the same.
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