Key Highlights
- Almost four‑tenths of humanity—about 3.4 billion individuals—confront inadequate, unaffordable, or unsafe dwellings.
- The worldwide price‑to‑income ratio climbed from 9.3 (2010) to 11.2 (2023), with Central‑South Asia reaching a staggering 16.8.
- Rents now command over 30 % of gross household earnings for roughly 44 % of families globally.
- Urban centres must accommodate an extra 2 billion residents by 2050, intensifying pressure on land, infrastructure, and basic services.
- India’s PMAY programme lifted housing coverage from 0.3 % to 7 % of households, yet affordable‑unit construction fell from 52 % (2018) to 17 % (2025).
Detailed Insights
The UN‑Habitat analysis released at the World Urban Forum in Baku confirms that the housing dilemma is no longer confined to low‑income nations. In both affluent and emerging economies, the gap between house prices and household earnings is widening, rendering homeownership increasingly out of reach for median‑income earners. The price‑to‑income quotient—an established gauge of affordability—has risen sharply worldwide, with South‑Asian metropolises such as Mumbai (14.3) and Delhi (10.1) now displaying acute stress.
Rental expenditures have become a dominant burden; nearly half of global households allocate more than one‑third of their income to shelter, curtailing spending on health, education, and nutrition. Simultaneously, homelessness remains pervasive, with rates of 13‑21 per 10,000 inhabitants recorded in India, the United States, and China.
Rapid urbanisation compounds the challenge. Projections indicate that by mid‑century cities will need to absorb two billion newcomers, straining land availability, water‑sanitation networks, transport corridors, and energy grids. Without decisive policy shifts, the deficit in adequate housing is forecast to deepen.
India‑specific findings reveal a dichotomy: while the Pradhan Mantri Awas Yojana (PMAY) has delivered 12 million homes and raised coverage to 7 %, the share of affordable units in new builds has plummeted, as developers chase higher margins on premium projects. Successful interventions such as the Ahmedabad Slum‑Networking Project illustrate that in‑situ upgrades, driven by community participation and modest financial inputs, can markedly improve living conditions without mass displacement.
Key Concepts
- Price‑to‑Income Ratio: A metric that divides average house price by average household income; higher values denote lower affordability.
- Rental Burden Threshold: The conventional benchmark that housing costs exceeding 30 % of income are deemed financially unsustainable.
- In‑situ Slum Upgrading: A strategy that enhances existing informal settlements through infrastructure upgrades and resident involvement, avoiding forced relocation.
- Pay‑as‑you‑go Housing: An incremental financing model where occupants make regular, affordable payments until full ownership is achieved.
- Climate‑Resilient Urban Planning: Integrating disaster‑proof design and adaptive infrastructure into city development to mitigate climate‑related housing losses.