The silver tsunami is reshaping the global real estate market

For decades, population growth has been one of the strongest foundations of the global housing market. More people generally meant more households, stronger demand for homes and, in many areas, rising property values. But demographic change is now challenging that long-standing assumption.

Falling birth rates, longer life expectancy and population decline are transforming housing markets across several major economies. As societies age, the issue is increasingly shifting from a shortage of homes to a potential surplus of properties in areas where the number of households is shrinking.

Japan offers one of the clearest examples of this transformation. The country has experienced population decline since 2008, while people aged 65 and over now account for almost one-third of its population. At the same time, younger generations have increasingly concentrated in major urban centers, leaving many rural communities with fewer residents.

This demographic shift has contributed to a growing number of vacant homes. Official Japanese data for 2024 put the number of unoccupied residential properties at around 9 million, representing approximately 13.8% of the country's total housing stock. In some rural areas, abandoned or aging properties are being offered at extremely low prices, while local authorities have introduced incentives to attract new residents.

However, Japan also demonstrates that demographic decline does not affect every real estate market in the same way. Tokyo and other major urban centers continue to attract workers, businesses and investment because of employment opportunities, infrastructure and access to services. Limited land availability in highly sought-after areas also helps support property values.

The phenomenon is not confined to Japan. China entered a period of population decline in 2022, while falling birth rates and weaker household formation have added pressure to an already troubled property sector. Housing demand is particularly vulnerable in cities that lack strong economic prospects or the ability to attract new residents.

South Korea faces a similar demographic challenge. Seoul continues to benefit from its concentration of jobs, services and infrastructure, but some regional cities are experiencing greater pressure as their populations decline. The contrast highlights an increasingly important feature of future property markets: national demographic trends may matter less than the ability of individual cities to attract and retain residents.

Italy is also confronting population aging and depopulation in several small towns, particularly in parts of the south. Some municipalities have experimented with symbolic-price home sales and other incentives designed to attract residents, renovate abandoned buildings and revive local communities.

The United Nations estimates that people aged 65 and over could account for roughly one in six people worldwide by 2050, compared with about one in ten in 2021. At the same time, declining fertility in many developed economies is reducing the size of future generations entering the housing market.

The consequences extend beyond the number of potential homebuyers. An aging population can also change the type of housing demanded. Older households may increasingly favor smaller, accessible homes located close to healthcare facilities, public transportation, shops and other essential services.

Large suburban family homes could become less attractive in some markets as children leave their parents' homes and older owners find large properties increasingly expensive or difficult to maintain. This could encourage developers to design housing projects with accessibility features, elevators, energy efficiency and nearby services.

The demographic transition could therefore force a major rethink of traditional housing policies. Governments have historically focused on increasing housing supply to meet growing demand. In shrinking communities, however, the challenge may instead be managing an existing housing stock that exceeds the number of households willing or able to occupy it.

This imbalance could place downward pressure on property values in areas experiencing persistent population losses. Regions unable to attract workers, businesses or migrants may face a particularly difficult cycle in which fewer residents lead to weaker demand, falling property values and further economic decline.

At the same time, interest rates and mortgage conditions will remain important determinants of housing activity, but they may no longer be sufficient to explain long-term market trends. Demographic factors, employment opportunities, migration patterns, infrastructure and access to services are becoming increasingly important in determining where housing demand will remain strong.

The so-called “silver tsunami” is unlikely to transform every real estate market at the same speed. Its effects may emerge gradually, unlike the immediate impact of financial crises or interest-rate shocks. Yet its long-term influence could be profound because demographic changes unfold over decades.

For governments, developers and investors, the challenge will increasingly involve understanding not only how many homes a market needs, but also where those homes should be located, how they should be designed and which generations they should serve.

The competition between cities could consequently shift from building the largest possible number of homes to attracting residents, jobs and investment. In growing metropolitan areas, housing shortages may remain a major concern, while shrinking regions could struggle with an entirely different problem: how to preserve the value and usefulness of millions of existing properties.

As populations age and fertility rates decline, the future of real estate will therefore depend increasingly on a city's ability to remain economically attractive and demographically resilient. The property markets of tomorrow may be shaped as much by the movement and age of people as by the construction of buildings themselves.