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Housing is one of the most powerful drivers of economic growth and human well-being—contributing up to 14-18 percent of GDP and 7-10 percent of total employment in many emerging economies. Yet, as rapid urbanization continues, the world faces an escalating housing crisis. Over 1.6 billion people currently live without adequate shelter, and that number is projected to nearly double by 2030.
Recognizing this urgent challenge, the Tokyo Development Learning Center (TDLC) hosted a Technical Deep Dive (TDD) on Public-Private Partnerships (PPPs) for Affordable Housing in collaboration with the World Bank’s Urban, Resilience, and Land Global DeparmentDepartment (URL), Finance, Competitiveness, and Innovation Global DepartmentPractice (FCI), and the International Finance Corporation (IFC). The event brought , bringing together 69 participants from nine ten countries and across regions including Angola, Azerbaijan, Cote d'Ivoire, Dominican Republic, Egypt, El Salvador, India, Namibia, Pakistan and Vanuatu. This marked TDLC’s fourth TDD on housing and the first to focus specifically on PPPs, taking a “One World Bank Group” that, integrated perspectives from both public and private sectors and clients from multiple continents. The TDD facilitated a deep dive into the housing value chain, exploring how governments and private sector actors can collaborate to strengthen formal housing markets and expand access to affordable homes.

From Policy to Partnership: Building Stronger Housing Systems
The week-long TDD focused on four core themes essential to developing inclusive housing systems: 1) Fundamentals of a functioning housing market, 2) Enabling the housing system, 3) Expanding finance for housing, and 4) The private sector’s role in delivering affordable housing.
Through structured learning, knowledge exchange, and hands-on discussions, participants explored how public and private sectors can join forces to address housing challenges—particularly for low- and middle-income populations.
The program highlighted how housing policy, finance, and land use are interconnected, and how public-private-people partnerships can offer practical pathways to scale affordable housing while improving quality and inclusivity.
Addressing Shared Challenges
Across countries, participants reported facing similar obstacles in expanding access to affordable housing. These included scarcity and high cost of serviced land, limited access to finance, weak institutional frameworks, fiscal constraints, and insufficient incentives for private sector engagement. Many participants also noted the difficulty of targeting vulnerable populations and extending housing solutions to informal workers.
Progress in affordable housing depends on creating policy and market conditions that attract private sector participation, rather than focusing on individual deals. This requires integrated frameworks, clear incentives, and risk-sharing mechanisms that make it feasible for private actors to invest. Holistic approaches that address both supply and demand, supported by data and peer learning, are essential for sustainable impact.
Discussions emphasized that while governments play a critical role in creating enabling environments, private capital, technical expertise, and innovation are essential to bridge the housing gap. Effective PPPs can only succeed, however, when they are designed with people at the center—understanding residents’ needs, income profiles, and the type of public support required for sustainability.

Learning from Japan’s Experience
Participants had the opportunity to learn from Japan’s long history of housing policy reform and innovation. Through a series of lectures and field visits in Tokyo and Yokohama, experts showcased how Japan has evolved its housing system to promote safety, inclusivity, and quality.
Japanese experts shared how the country’s housing policies and institutions have evolved to promote inclusivity, quality, and innovation. Dr. Toshio Otsuki of the University of Tokyo traced Japan’s housing policy transformation from postwar reconstruction to today’s focus on social inclusion and safety nets for vulnerable groups. From the financial perspective, the Japan Housing Finance Agency introduced Flat 35 and other long-term loan programs designed to enhance housing quality and expand access to credit. Complementing these efforts at the local level, the Tokyo Metropolitan Government presented the Tokyo Support Project, which leases private housing to provide affordable rentals for low-income residents. The private sector’s contribution was highlighted by LiveEQuity, which described the company’s innovative approach of renovating vacant homes into affordable, high-quality rentals using a cross-subsidization model that sustains both social and financial value.

The participants visited the Tokaichiba district in Yokohama city, where the city’s residential revitalization initiative has transformed former municipal housing sites through a public-private partnership model. Participants observed how municipal and private housing coexist alongside shared community facilities, public spaces, and essential infrastructure, creating a walkable, inclusive, and vibrant living environment.

Global Perspectives and Peer Learning
Complementing Japan’s experience, participants also explored international cases that showcased diverse PPP models for affordable housing—from Latin America to South Asia and the Middle East. These global perspectives offered valuable lessons on policy design, financing instruments, and implementation strategies.
Through peer exchanges, participants gained insights into how different contexts have tailored PPP models to local needs while maintaining affordability and quality.
Key Takeaways
The TDD generated several overarching insights that cut across Japanese and global experiences:
Toward Scalable and Inclusive Housing Solutions
The TDD underscored that no single actor—public or private—can solve the housing crisis alone. Achieving scale and sustainability requires partnerships that align policy frameworks, financing tools, and private investment with the lived realities of people and communities.
As a culmination of the program, participants developed action plans to adapt the insights gained from Japan and global peers to their own local contexts. Drawing on the practical tools and innovative approaches shared during the week, they identified opportunities to strengthen housing finance systems, enhance public-private collaboration, and promote inclusive housing policies in their countries. With these experiences and connections, participants are prepared to apply their learning to develop housing systems that aim to be sustainable, inclusive, and resilient.
