Japan’s Housing Market and Housing Policies
Introduction
The evolution of the housing market and housing policies in Japan offers a unique case study for developed economies. After World War II, Japan faced a severe shortage of 4.2 million housing units. The government’s response was a massive, state-led push to increase the quantitative supply of houses. This effort was so successful that by the mid-1960s, the total number of houses exceeded the number of households. However, this rapid expansion gave way to new challenges: the collapse of the property bubble in the early 1990s, persistent deflation, and adverse demographic trends namely a decreasing population and an aging society.
This summary synthesizes the key findings from Masahiro Kobayashi’s 2016 paper, which examines the current status of Japan’s housing market, evaluates historical and contemporary housing policies, and draws lessons for other nations, particularly in Asia.
Current Status of the Housing Market
Homeownership and Vacancy Rates
As of 2013, Japan’s homeownership rate stood at 61.7%, a figure remarkably stable over the past half-century and comparable to the United States (64%) and the United Kingdom (64.6%), though higher than Germany’s 52.6%. More striking is the vacancy rate. In 2013, Japan had 60.63 million housing units, of which 8.20 million were vacant, a vacancy rate of 13.5%. This is slightly above the US rate of 12.8%, though the US figure includes more second homes. Regional disparities are significant: vacancy rates are higher in less populated prefectures, highlighting the issue of shrinking regional communities.
Housing Starts and Investment
For 40 years (1968–2008), Japan consistently started over one million new housing units annually, a remarkable figure given its population is only 40% of the US. However, after the global financial crisis in 2009, starts fell to 0.79 million and have not consistently returned to the one-million mark. A temporary spike to 0.98 million in 2013 was driven by a rush to beat a consumption tax increase (from 5% to 8% in April 2014). That tax hike then dampened demand, reducing starts to 0.89 million in 2014.
The share of housing market private residential investment as a percentage of GDP has also declined, from above 5% in the late 20th century to below 3% in the 2010s. This is not because housing starts are low compared to the US; they are comparable but because the average size and value per unit are much smaller. In 2013, a newly constructed single-family detached house averaged 125 square meters in Japan versus 247 square meters in the US. Japan also has a higher share of multifamily units, which are typically smaller.
Land Prices and the “Lost Decades”
Until recently, Japan housing market lacked a national home price index, so land prices serve as a proxy. Land prices in Japan skyrocketed during the late 1980s, forming a classic asset bubble. Residential land prices in six major cities peaked in 1991, then plummeted, leading to 13 consecutive years of decline (1992–2005). This collapse triggered the notorious “lost decades” of economic stagnation and deflation. The paper notes that from 1994 to 2014, the value of land owned by Japanese households decreased by ¥480 trillion, while net financial assets increased by ¥530 trillion, a massive shift in household balance sheets.
Major Challenges and Risks Facing the Housing Market
Demographic Decline and the “Population Bonus”
The single most important challenge for Japan’s housing market is adverse demographics. Japan’s population has begun to decrease, and the inverse dependency ratio (working-age population divided by dependent-age population) is declining sharply. This ratio has historically correlated with housing starts: peaks in the late 1960s and early 1990s (coinciding with “population bonus” periods when baby boomers and their children entered the workforce) matched peaks in housing construction. As the population ages and shrinks, the fundamental demand for new housing diminishes, raising the question: Should Japan continue building one million new units per year when millions of homes already stand vacant?
Short Lifespan of Homes and Low Existing Home Sales
Compared to the US, Japan has a very thin housing market for existing home sales. In 2012, only about 473,000 existing homes were sold, barely half the number of new housing starts. This low turnover contributes to rapid depreciation. From 1995 to 2014, cumulative residential investment was ¥382 trillion, yet the market value of existing residential structures increased only from ¥312 trillion to ¥357 trillion, far less than the arithmetic sum would suggest.
In other words, houses in Japan lose value quickly, partly because their average lifespan before demolition is less than 30 years. Rental properties, which make up 41% of all housing starts, have even shorter lives than owner-occupied homes. Cultural preference for new homes, lack of mandatory inspections for existing houses, and tax disincentives for demolition all perpetuate this cycle.
Natural Disasters and Earthquake Resilience
Japan is prone to major earthquakes, including the Great Hanshin-Awaji Earthquake (1995) and the Great East Japan Earthquake (March 11, 2011), which killed over 19,000 people and destroyed or damaged more than one million homes. Enhancing earthquake resilience remains a critical policy goal. More than 11 million houses are estimated not to meet current seismic standards.
Affordability and Debt
Despite high land prices relative to GDP, affordability is not as acute as one might expect. The average home price is 4 to 6 times household income, and the debt-to-income (debt-service) ratio is around 20%, aided by extremely low interest rates. Mortgage debt outstanding (MDO) per GDP in Japan has remained around 40% since 2000, much lower than the US peak of 70% during its housing bubble. Japanese households have used low interest rates to prepay mortgages, and partial prepayment (curtailment) is common.
Housing Policies in Japan: 1945–2000
The post-war housing policy rested on three pillars, all established in the 1950s:
Government Housing Loan Corporation (GHLC) – Established 1950 to provide low-interest, fixed-rate mortgages.
Public Housing Act (1951) – Authorized local governments to build public rental housing market for low-income people.
Japan Housing Corporation (JHC, now Urban Renaissance Agency UR) – Established 1955 for collective construction and large-scale land supply for middle-income urban families.
The Role and Demise of the GHLC
The GHLC was the most powerful of the three, financing 19.41 million housing market units from 1950 to 2007 nearly 30% of all post-war housing construction. It borrowed from the Fiscal Investment and Loan Program (FILP), which mobilized postal savings and national pension funds. The GHLC lent at capped rates (e.g., 5.5% for low-to-middle-income borrowers) and received government subsidies to cover negative interest margins.
However, when interest rates declined sharply in the 1990s, borrowers prepaid their GHLC loans without penalty, while the GHLC itself had to pay penalties to FILP for early repayment. Subsidies ballooned to around ¥400 billion annually. This fiscal burden became unsustainable. The government decided to wind down the GHLC in 2001, replacing it with the Japan Housing Finance Agency (JHF) in 2007.
Public Rental Housing and JHC
Public rental housing market (1.96 million units by 2013) successfully served low-income families but created long waiting lists (35.5 applicants per unit in Tokyo in 1989) and challenges with over-income tenants refusing to leave. The JHC pioneered large “new town” developments (e.g., Tama New Town), establishing the multifamily living style with “3 DK” (three bedrooms plus dining-kitchen). But as private developers grew stronger, the JHC’s role diminished, leading to its reorganization into the Urban Renaissance Agency (UR) in 2004, with a focus on urban renewal rather than new construction.
Housing Policies in the 21st Century
The Japan Housing Finance Agency (JHF) and Flat 35
The JHF represents a fundamental shift: instead of originating mortgages (competing with private banks), it purchases fixed-rate housing market mortgages from private lenders and packages them into mortgage-backed securities (MBS). Its flagship product is “Flat 35”, a 35-year, fully fixed-rate, pre-payable mortgage. As of August 2015, the rate was 1.58%. The JHF guarantees timely payment of principal and interest to MBS investors, underwriting the credit risk but passing prepayment risk to investors. Unlike the GHLC, the JHF receives no ongoing subsidy (except for disaster-related exceptions) and recorded net income of ¥282 billion in FY 2014.
The JHF MBS structure is hybrid: assets remain on the JHF’s balance sheet (like European covered bonds), but in case of insolvency, they are segregated for investors (like US agency MBS). By 2015, JHF MBS outstanding totaled ¥11.2 trillion, surpassing private-label securities (PLS) at ¥7.8 trillion.
Basic Act for Housing (2006)
Enacted to shift focus from quantity to quality, the Basic Act for Housing established three principles:
Safe, secure, high-quality housing market stock.
A desirable market environment.
Housing safety nets for vulnerable people.
Specific policies include:
Assistance for the elderly: Registration system for “Housing with Support Services,” with subsidies, tax benefits, and JHF mortgages.
Energy efficiency: “Eco-points” vouchers (up to ¥300,000) for energy-saving homes or renovations.
Expansion of existing home transactions: To counter the preference for new homes, MLIT has launched measures to improve transparency (e.g., inspections, quality criteria). Simultaneously, a 2014 law accelerates demolition of severely deteriorated vacant homes that were kept standing due to property tax reductions for land with structures. However, the paper notes that Japan cannot simply halt new construction because many existing homes lack modern earthquake and energy standards.
Recovery from the Great East Japan Earthquake: Over 53,000 emergency temporary houses were built. JHF provided special concessional mortgages and rescheduling for affected borrowers, funded by FILP and subsidies as an exception.
Challenges for the Future
Economic and Deflation Risks
The Bank of Japan’s extraordinary monetary easing has helped lift the economy from 15 years of deflation, but achieving a sustainable 2% inflation target remains uncertain. A persistent pessimistic belief that falling population makes escape from deflation impossible could become a self-fulfilling prophecy. Falling property prices also threaten financial institutions’ balance sheets and hinder the development of reverse mortgages, which are increasingly important for an aging society. If the private sector cannot provide reverse mortgages, government assistance (modeled on the US FHA’s Home Equity Conversion Mortgage) may be needed.
Mortgage Market Challenges
Even with Flat 35 rates as low as 1.48% (February 2016), fixed-rate mortgages are less popular in Japan than in the US. Many borrowers assume rates will stay low forever, but normalization of monetary housing market policy would cause a shock. Japanese banks are more prudent than US pre-crisis lenders; they use higher rates to calculate debt-to-income ratios but the future path of interest rates is highly uncertain.
MBS and Covered Bond Challenges
Private-label securitization in Japan has collapsed since its 2006 peak due to:
Basel II capital requirements making securitization less attractive.
Bad reputation after the US subprime crisis.
Regulatory uncertainty (e.g., risk retention rules under Dodd-Frank).
The JHF’s “guarantee program” (similar to FHA/Ginnie Mae) attempts to revive PLS, but challenges remain. Covered bond legislation has been advocated, but the Financial Services Agency declined in 2014, stating there was no immediate need.
Lessons Learned from Japan’s Experience
The paper offers several key takeaways for other countries, especially emerging Asian economies:
Detect and prevent property bubbles. Bubbles always collapse, causing severe damage. However, reaction matters: the Federal Reserve’s swift liquidity provision after Lehman Brothers prevented US deflation, whereas the Bank of Japan was criticized for “punishing” the bubble in the 1990s.
Once deflation takes hold, it is hard to escape. Japan’s “unintended steady state” (Bullard, 2010) is a warning for Europe and other aging economies.
Government financial institutions (GFIs) can work initially but are not sustainable indefinitely. Japan successfully transitioned from a primary-market GFI (GHLC) to a secondary-market GFI (JHF) that requires no subsidy. In contrast, countries like Thailand and the Philippines have dominant primary GFIs that crowd out secondary markets.
For secondary-market GFIs to succeed, they need proprietary distribution channels, capital market development, and possibly government guarantees or central bank acceptance of their MBS as collateral.
Conclusion
Japan’s housing market has come full circle: from post-war scarcity to a stock of 60 million units, then to a bubble, bust, deflation, and now an aging, shrinking population. The policy focus has shifted from building more to building better improving quality, energy efficiency, earthquake resilience, and activating the existing home market. The transformation from GHLC to JHF shows that a state-backed mortgage system can evolve from subsidized direct lending to self-sustaining secondary market operations.
Nevertheless, Japan remains in the middle of a social experiment. No other advanced economy has faced such a rapid demographic decline combined with deflation and a massive stock of vacant homes. Policymakers must carefully balance new construction (which supports the economy and delivers higher-quality, safer homes) with renovation and demolition (which reduces waste and supports asset values). Other nations watching Japan’s experience should take note: housing policy is not just about roofs over heads it is about financial stability, demographic adaptation, and the quality of life for an aging population.
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