Latest / The Demographics Podcast with Fexingo: Aging Populations, Birth Rates, and Economic Impact / How Shrinking Birth Rates Reshape the Real Estate Market
Transcript
- Lucas: So Luna, we talk a lot on this show about how falling birth rates ripple through industries — agriculture, pensions, toys. Today I want to get physical. Literally, bricks and mortar. Luna: You mean real estate. Lucas: Exactly. Because if you have fewer children, you need fewer houses. That sounds obvious, but the mechanics are fascinating — and the numbers are starting to show up in markets you wouldn't expect. Luna: Give me an example. Where is this actually showing up? Lucas: Japan is the poster child. The country's population has been shrinking since 2011, and the number of households is now starting to decline too. That's the key shift — population falls first, but household formation lags. Now it's catching up. Luna: So fewer households means fewer buyers, but Japan has also been building for decades. Lucas: Right, and that's the collision. In the 1990s and 2000s, Japanese developers kept building single-family homes in the suburbs, betting on a future that never arrived. Now you have an estimated eight to nine million 'akiya' — abandoned homes. That's roughly one in seven houses in Japan standing empty. Luna: One in seven. That's staggering. And I've read that some towns are essentially giving them away. Lucas: Yeah, there are 'akiya banks' — local government databases listing vacant properties for a fraction of what they'd have cost a generation ago. Some are literally free, with subsidies for renovation. But even at that price, demand is thin. Luna: Why thin? I mean, who doesn't want a cheap house? Lucas: Location, location, location. Many of these homes are in depopulating rural areas or aging suburbs with limited services — no grocery store, poor public transit, schools closing. Young families, what few there are, are gravitating to cities like Tokyo and Osaka, where there are still jobs and nightlife. Luna: So it's not just fewer buyers — it's a geographic mismatch. Lucas: Exactly. And this isn't just a Japan story. Across Europe, and even in parts of the U.S., you're seeing the same dynamic play out. Look at Italy, where the population has been shrinking for a decade, or Germany, which has a growing elderly population and a declining young cohort in rural areas. Luna: But the U.S. is still growing. Birth rates fell, but immigration has kept the population rising. Lucas: Right — that's the nuance. America's population is still projected to grow for decades, but the composition is shifting. Fewer children per family means the average household size is dropping. In 1960, it was over three people per household. Today it's around two and a half. Luna: And a household of two needs less space than a household of five. Lucas: Exactly. So even with steady population, the demand for large single-family homes in outer suburbs is softening, while demand for smaller units — condos, townhouses, even studio apartments — is holding up better. That's a fundamental shift from the post-war norm. Luna: So the classic American dream of a big house with a yard might be fading. Lucas: I'd put it differently: it's not disappearing, but it's no longer the default. And developers are noticing. In places like Phoenix and Dallas, where they were building megasuburbs a decade ago, you're starting to see more townhome and build-to-rent communities — smaller footprints, shared amenities. Luna: Build-to-rent — that's an interesting one. Who's behind that? Lucas: Institutional investors. They've been buying up single-family homes and renting them out, but increasingly they're building them specifically for rent. The logic is simple: a generation that grew up after 2008 is cautious about owning, and they don't need a three-bedroom house for a family. Luna: So the product is adapting to the new demographic reality. Lucas: Exactly. And it's not just new builds. Cities are also starting to convert obsolete office buildings into residential units. You've seen that in places like Cleveland and Pittsburgh, where downtown vacancies are high and housing demand is more central. Luna: That's a smart repurposing, but it can't solve everything. Lucas: No, and it's expensive. Retrofitting an office tower for residential use can cost nearly as much as building new. But it's a signal that the market is responding to a structural change, not just a cyclical dip. Luna: I want to go back to the household size thing, because that seems like the quiet driver. Can you break down the number? Lucas: Gladly. In the U.S., average household size has fallen from 3.3 in 1960 to about 2.5 today. In Japan, it's now under 2.3. In Italy, under 2.2. That means the same population needs more housing units — roughly one new unit per ten people just to keep vacancy rates stable. Luna: But wait, that sounds like it should increase demand for units. Lucas: It does — in the short run. Smaller households mean more units, but each unit is smaller and cheaper. The problem is that the housing stock was built for a different era — big family homes. So you have a mismatch: too many large homes in the wrong places, not enough small, well-located units. Luna: That's a great way to put it. And that mismatch is what creates the abandoned homes in Japan and the sky-high prices in cities like San Francisco or London. Lucas: Exactly. In cities, you have a shortage of small units because zoning and construction costs make it hard to build. In the suburbs, you have a surplus of large homes that fewer people want. That's the demographic squeeze on real estate. Luna: So what does that mean for an individual buyer or renter in 2026? Lucas: For one, location matters more than ever. The value of a home is increasingly tied to its proximity to jobs, transit, and amenities — not just square footage. A small condo in a walkable neighborhood is often a better investment than a big house in a dying suburb. Luna: And for investors? Lucas: They're already shifting. Pension funds and REITs are pouring money into build-to-rent and urban multifamily. They're betting that the demographic trend toward smaller households and urban living is secular, not cyclical. Luna: That makes sense. And it's not just the private sector. Governments are getting involved too. Lucas: Right. In Japan, they're offering subsidies to demolish abandoned homes, and some towns are literally paying people to move in. In France, there are tax incentives for converting underused commercial space into housing. And in the U.S., some cities are relaxing zoning to allow more accessory dwelling units — backyard cottages, that kind of thing. Luna: So there's a policy response, but it's patchy. Lucas: Very patchy. And that's the challenge — housing is a slow-moving asset. It takes decades for the stock to adjust. So even as the demographic signals are clear, the built environment lags by a generation or more. Luna: That's why we see these ghost towns in rural Japan and yet still hear about housing crises in Tokyo and Seoul. It's a tale of two markets. Lucas: Exactly. And as more countries follow Japan — South Korea, Italy, even China — that split will only widen. The question is whether we can adapt the housing stock fast enough to match the demographic future. Luna: Before we go further, I want to pause on something that ties into our own little corner of the world. We're able to dig into these issues because we keep this show free of ads. Lucas: That's true. No sponsors, no mid-roll interruptions. Just us, talking through the data. And that's only possible because some listeners choose to support us. Luna: If you've found value in the way we break down complex trends, and you want to keep it that way, the link is buy me a coffee dot com slash fexingo. Lucas: It's not about perks or rewards — it's about helping us stay independent. And we genuinely appreciate anyone who does. Now, back to the real estate picture. Luna: Yeah, so you mentioned China. How's that playing out? Lucas: China is a perfect storm. Birth rates have plummeted — the one-child policy did its job, maybe too well — and the population is starting to shrink. Meanwhile, they built an enormous amount of housing. The result is that even in some second-tier cities, you're seeing entire residential districts built in the last decade sitting partially empty. Luna: And that's not just a market problem — it's a financial one, given all the debt tied up in property. Lucas: Exactly. Real estate is the collateral for a huge portion of Chinese household and local government debt. So when the housing market softens, it ripples through the whole economy. That's why the government is trying to manage the decline carefully. Luna: So the demographic pressure isn't just about empty homes — it's about financial stability. Lucas: And that's the through-line. Whether it's Japan's akiya, Italy's depopulating villages, or China's empty megaprojects, the common thread is that real estate is the slowest to adjust to demographic change. But it's also the most consequential, because housing is so intertwined with wealth, debt, and identity. Luna: So what should a smart listener watch for in the next few years? Lucas: Three things. One: vacancy rates in the suburbs — if they start drifting up outside major metros, that's the early warning. Two: household size — as it keeps falling, demand for smaller units will rise. And three: policy — watch for zoning reforms and tax incentives aimed at repurposing excess housing stock. Luna: And maybe the most practical takeaway: if you're thinking about buying a home, think about the demographics of the neighborhood, not just the price. Lucas: Exactly. The best investment you can make is in a place that will still be desirable when the population ages and shrinks. That's the new real estate mantra.