Global: Improving Access To Adequate And Affordable Housing For The Urban Poor

Introduction

The urban landscape in many Southern nations is rapidly transforming with an unprecedented shift known as the “urbanization of poverty.” This brings a surge in demand for both adequate and affordable housing. However, the resulting expansion of informal settlements underscores a widespread failure to deliver such housing. These informal communities often lack basic infrastructure—clean water, sanitation, drainage, waste management, and safe transport access—creating hazardous and overcrowded environments that undermine health and security. Many urban poor are unable to afford adequate and affordable housing, trapped in cycles of informal, substandard dwelling. The South is urbanizing at an unprecedented rate. Occurring concurrently with the accelerated urban growth is what is now commonly referred to as the “urbanization of poverty”—the fact that a rapidly increasing proportion of the world’s poor is to be found in cities and towns. An ever-rising number of urban poor households are thus seeking low-cost housing within their means. This has resulted in a proliferation and expansion of densely populated and overcrowded informal settlements characterized by inadequate infrastructure (water, sanitation, drainage, waste management, and access roads and footpaths), and poor building and housing conditions. In many cases, more than half of the population lives and works in these unhygienic, hazardous environments where they face multiple threats to their health, well-being, and security. adequate and affordable housing Moreover, most Southern nations cannot provide sufficient employment opportunities for the rapidly growing number of new entrants to the urban labor market each year. A substantial proportion of women and men living and working in informal settlements are thus unemployed or underemployed in the informal sector, earning low incomes for long hours of work. And a majority consequently find themselves unable to afford the cost of adequate shelter. Early interventions by the Intermediate Technology Development Group (ITDG) aimed to improve poor people’s shelter conditions in rural areas through the use of appropriate building technologies. However, recognizing that poor households in cities and towns were facing an even bigger housing problem, ITDG shifted its focus to urban areas. Subsequent participatory action research projects have substantiated the complexity and multidimensionality of urban poverty, and shown that a single-sector approach cannot sustainably improve the shelter conditions of those living in poverty in cities and towns. ITDG has learned that improving urban poor people’s housing (physical capital) through the use of alternative building materials in urban areas involves not only a review of standards and regulatory frameworks, but also building human capital through skills upgrading, strengthening community-based groups and empowering local communities (social and political capital), and facilitating access to credit (financial capital). The paper reviews the evolution of ITDG’s interventions from a single sector, appropriate building technologies perspective to integrated sustainable livelihoods approach to improving access to adequate and affordable housing for the urban poor.

1. Multidimensional Strategies for Real Impact

Efforts to increase provision of Adequate And Affordable Housing must go beyond bricks and mortar. Early interventions focused on appropriate building technologies. However, effective solutions now embrace a holistic model:

This integrated approach enables sustainable access to adequate and affordable housing.
Acash

2. Linking Housing to Sustainable Development Goals

Housing is central to achieving SDG 11—making cities inclusive, safe, resilient, and sustainable. But its impact stretches across multiple dimensions:

Ensuring Adequate And Affordable Housing for the urban poor is both a fundamental right and a catalyst for broader sustainable development.
AcashUnited Nations University

3. Global Shortfall: The Numbers Aren’t Adding Up

The scale of the challenge is immense. The global shortage of adequate and affordable housing impacts an estimated 330 million urban households, potentially rising to 440 million—or 1.6 billion people—by 2025.
wri.org.cn+1

In many cities, the housing crisis is particularly severe due to:

Reversing these trends requires new approaches that unify formal and informal options, public and private solutions, and collective and individual ownership models.
wri.org.cn

4. Scalable Approaches: From Policy to Practice

The Adequate And Affordable Housing challenge can be addressed by deploying three key strategies at scale:

  1. In situ participatory upgrading of informal settlements—improving housing and infrastructure where people already live.

  2. Promotion of rental housing—recognizing rental as a flexible and accessible tenure model.

  3. Conversion of underutilized urban land—unlocking land for affordable housing development through redeployment of idle or vacant space.
    wri.org.cn

These strategies emphasize flexibility, inclusivity, and sustainability—key for delivering adequate and affordable housing in diverse urban contexts.

5. Economic and Social Payoffs

Investing in adequate and affordable housing also yields profound socio-economic dividends:

These findings demonstrate that providing safe housing is not simply a moral imperative—it’s essential economic development.

6. Sustainable Affordable Housing: A Global Imperative

The World Green Building Council projects that 96,000 new affordable homes must be built daily over the next 75 years to keep pace with demand. These homes must be both economically accessible and environmentally sustainable for long-term resilience. Innovations like 3D-printed homes in Kenya, community finance in Nepal, and eco-retrofits in the Philippines showcase scalable models for adequate and affordable housing that respect both affordability and sustainability.
World Green Building Council

7. Policy Pathways and Holistic Urban Agenda

Global housing policy should:

Housing must be repositioned from marginal social policy to central to urban sustainability and equity.

 Conclusion and Call to Action

The crisis of Adequate And Affordable Housing for the urban poor demands immediate, transformative action. This is not just a housing issue—it’s a linchpin for economic productivity, health, social inclusion, equality, and urban sustainability.

Key strategies for change include:

The path forward involves vision, commitment, and the courage to reimagine housing as a human right, not just a commodity. A coordinated global push centered on adequate and affordable housing is the foundation for equitable and thriving urban futures.

Also Read: Report on Nexus activities in Naga City/Philippines on affordable housing and waste water management concept