Cities around the world are developing innovative approaches to challenges ranging from climate resilience and mobility to housing, public health, and access to nature. Yet creating a successful project is only part of the challenge. Achieving lasting urban transformation requires building community ownership, navigating complex governance systems, mobilizing finance, generating credible evidence, and sustaining momentum as projects grow and evolve.

These conference proceedings capture insights from the WRI Ross Center Prize for Cities–Yale Hixon Center Learning Event, held at the Yale School of the Environment in April 2026. The event brought together representatives of the five finalists from the 2025–2026 WRI Ross Center Prize for Cities, alongside WRI experts and Yale faculty, students, and practitioners, to exchange lessons on how transformative urban initiatives are built, sustained, and expanded.

Drawing on experiences from Atlanta, Loja, Makassar, Manila, and Nairobi, the proceedings explore different pathways to urban transformation, from reconnecting neighborhoods through green infrastructure and improving sanitation in informal settlements to restoring public libraries, building citywide ecological networks, and advancing citizen-led transportation reform.

Through lightening talks, panel discussions and interactive roundtables, participants examined three cross-cutting dimensions of transformative change: the catalysts of change, enabling factors and how transformative initiatives and sustained and expanded. Discussions explored how projects build long-term trust and community ownership, work across institutions and sectors, secure sustainable financing, and combine data and research with lived experience to strengthen implementation and support expansion.

The proceedings distill practical lessons for urban practitioners, policymakers, researchers, and funders seeking to move promising initiatives beyond individual projects toward more durable change. Key insights include the importance of treating communities as partners, building long-term trust, securing government buy-in and co-financing, developing strong academic and research partnerships, and planning for the challenges of scaling from the outset.