The global housing crisis affects about 40% of the world’s people, or around 3 billion, according to UN-Habitat’s World Cities Report 2026. The report, titled The Global Housing Crisis: Pathways to Action, was launched at the World Urban Forum in Baku in May 2026. We read its findings through a press account dated June 1, not the full report. This article summarizes the figures, explains the main terms and flags what we could not confirm.
How big is the housing shortage?
The report says housing shortages rose from roughly 201 million units in 2010 to more than 268 million in 2023. By our own arithmetic, that is an increase of about 67 million units, or about 33%. The press account says about 30%, and the difference comes from rounding in the reported figures.
How expensive is housing?
The global price-to-income ratio, which compares the price of a home with annual income, rose from 9.3 in 2010 to 11.2 in 2023. It reached 16.8 in Central and Southern Asia, the highest region cited. By our arithmetic, the global ratio rose about 20%. The report also says that 44% of households worldwide spend more than 30% of their income on housing, a common benchmark for housing stress.
What does climate have to do with housing?
The report projects that climate-related hazards will destroy 167 million homes by 2040. It says natural catastrophes caused $280 billion in global losses in 2023, most of it uninsured. Buildings account for about 34% of global energy use and 37% of carbon dioxide emissions, and housing alone is estimated at 17% to 21% of total emissions. Our article on CO2 emissions covers the wider emissions picture. The report adds that about 60% of the buildings expected to exist in 2050 have not yet been built, which it calls a decisive window for low-carbon, climate-resilient housing.
What does the report recommend?
UN-Habitat’s executive director, Anacláudia Rossbach, called for a new social contract for housing in which governments, the private sector and communities share responsibility for mobilizing investment. The press account lists these recommendations:
- Large-scale public investment, stronger governance and coordinated action across sectors
- More investment in social and affordable housing
- Private-sector participation through targeted subsidies, community-based financing and measures that reduce investor risk
- Housing policy joined up with infrastructure, land management, finance and community participation
The report estimates that financing needs for adequate and affordable housing are $3 trillion to $4 trillion a year through 2030, on top of maintaining and upgrading existing housing.
How is housing framed?
The report frames housing as a human right. It warns that treating housing mainly as a market commodity leaves people exposed to forced eviction, insecure tenure and homelessness. It links the crisis to informal settlements, which continue to expand, and says the crisis is deepening in both developed and developing countries. The press account does not give a formal definition of adequate housing.
What does a ratio of 11.2 mean?
A price-to-income ratio of 11.2 means a typical home costs about 11.2 times a typical household’s annual income. At 16.8, as in Central and Southern Asia, the typical home costs nearly 17 years of income. These readings come from our own explanation of the ratio and are not quoted from the press account. They show why saving for a home can take decades where ratios are high, even before borrowing costs are counted.
Why does the source matter?
We could read only a press account of the report, which repeats the report’s headline figures but may not include its definitions or caveats. For that reason, the numbers here should be read as reported figures, and readers who need exact wording should consult the report from UN-Habitat.
How to read the numbers
The shortage figures measure units missing, while the price-to-income ratio measures how out of reach units are. The two can move in different directions in different places. The figure of about 40% of people affected depends on how the report defines the crisis, and the press account does not spell out that definition. Cost-burden figures such as the 30% threshold are benchmarks and not legal limits.
How does the housing report connect to other coverage?
Housing is tied to where people live. Our report on the World Urbanization Prospects 2025 shows that cities hold 45% of the world’s people, and the Sustainable Development Goals Report 2026 tracks progress across all the goals. The article on energy access in 2026 covers a related need in homes that still lack electricity.
What should readers watch for next?
Readers can watch whether governments act on the call for public investment, how cities treat informal settlements and whether building codes begin to require low-carbon design. The press account does not report any national commitments.
Glossary
- Price-to-income ratio: the median home price divided by the median annual household income
- Informal settlement: housing built without legal title or official planning approval
- Security of tenure: legal protection against forced eviction
- Social housing: housing provided at below-market cost, usually with public support
- Housing cost burden: spending a large share of income on housing
These definitions are general explanations and are not quoted from UN-Habitat.
What is not covered here?
We did not read the full report, so we cannot confirm figures against its tables or footnotes. We omit a displacement statistic that the press account repeats, because it comes from outside the housing analysis. The press account has one typographical error in a shortage figure, which we corrected by comparing it with the other numbers.
Key facts at a glance
- People affected: about 40%, or around 3 billion
- Housing shortage: more than 268 million units in 2023, from about 201 million in 2010
- Price-to-income ratio: 11.2 in 2023, from 9.3 in 2010
- Households spending over 30% of income on housing: 44%
- Financing need: $3 trillion to $4 trillion a year through 2030
Frequently asked questions
Who published the report?
UN-Habitat, the United Nations agency for human settlements.
How many homes could climate hazards destroy?
The report projects 167 million homes by 2040.
What is the main recommendation?
A new social contract for housing, with shared investment by governments, the private sector and communities.
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