There is a number that explains a generation’s politics: the ratio of house prices to earnings. Across much of the rich world it has doubled within living memory. A home that cost three years of a typical salary when today’s grandparents bought now costs eight, ten, in the great cities more. Everything else — delayed families, smaller lives, political anger, the suspicion that the economic game is rigged — flows downhill from that arithmetic.
The causes are not mysterious, only stubborn. Rich countries restricted housing supply for decades through planning systems that privilege existing owners’ views over new residents’ needs, while populations and incomes concentrated in a few productive cities. Financialisation added demand from investors; cheap credit through the 2010s capitalised itself into prices. When rates rose, prices wobbled but the deposit hurdle — the true gatekeeper for the young — barely moved, as our finance coverage has charted through successive affordability indices.
The Wealth Consequences Compound
Housing is the middle class’s principal wealth-building machine: leveraged, tax-favoured, and appreciating. Lock a generation out of it and you lock them out of the compounding. Renters pay others’ mortgages while their own savings chase a deposit target that recedes as they save. The OECD has documented homeownership rates among under-35s falling across most member countries, with inheritance — the ‘bank of mum and dad’ — becoming the decisive lender, entrenching the advantage of those already housed.
The knock-on effects are demographic and civic. Family formation waits for housing security that arrives later or never; birth rates in high-cost cities tell the story in advance. Employers in productive cities cannot hire workers who cannot live there. And politics polarises by tenure: owners vote to protect the scarcity that enriches them; renters vote, increasingly, for whoever promises to break it.
What Would Actually Help
Economists across the spectrum converge on supply: build far more homes where the jobs are, especially dense housing near transit, and reform the planning vetoes that stop it. Demand-side subsidies without supply mostly inflate prices further — a lesson governments relearn expensively each decade. Some cities that have liberalised building, from Auckland to Austin, offer early evidence that rents can bend when cranes multiply.
The Renters’ Decade Is the Hidden Story
While attention fixes on first-time buyers, the quieter transformation is in renting. The average renter is older than at any point in modern records; families rent who expected to own; and in the great cities a professional class has formed that may rent for life — a tenure pattern northern Europe normalised generations ago, arriving in Anglo-Saxon markets without the tenant protections that make it workable there. The politics of that class, once it recognises itself, will reorder housing debates more than any single reform.
Landlords are professionalising in response, with build-to-rent developments offering the long leases and maintenance standards the fragmented market never did. Whether that becomes a humane settlement — secure renting as a legitimate life, decoupled from the ownership ladder — or merely a more efficient extraction depends on the rules written in the next few years, while the renter class is still deciding what it thinks.
The political consequences are only beginning to price in. Housing has become the rare issue that realigns voters by age rather than class or region: polling across Britain, Canada and Australia shows under-40s naming it their first concern by wide margins, and parties of every stripe are discovering that older homeowners’ gratitude is no longer a sufficient coalition. What gets built in the next five years will decide whether that anger hardens into a permanent politics.
The affordability crisis is often described as a market failure. It is more precisely a policy success — for the policies’ intended beneficiaries. Changing it requires those beneficiaries to accept a smaller scarcity premium as the price of their children owning homes. Societies are beginning, slowly and unevenly, to make that trade. More at updatearticle.com.
