Adopted on June 4, 2026, at the close of the Urban7 International Mayors’ Summit, the Nancy Declaration sets out how cities intend to give their new G7 status its full meaning: delivering the G7’s priorities — and helping shape them.
On June 4, 2026, the mayors and national city associations of the G7 adopted the Nancy Declaration at the close of the Urban7 International Mayors’ Summit — the first held since cities were formally recognized as an official G7 Engagement Group. The document was transmitted to the French G7 Presidency ahead of the G7 Leaders’ Summit in Évian on June 15–17, 2026.
The Declaration is designed to turn recognition into a working relationship. Cities position themselves as long-term, strategic, and trusted partners of the G7, committed to a permanent and constructive dialogue — in both directions. Downstream, they commit to delivering the French Presidency’s three macro-themes — international partnerships and solidarity, resilience, and sustainable economic transformation — recognizing that none of these agendas succeeds in the abstract: they succeed, or fail, in cities. Upstream, the Declaration channels into the G7 process the visions and energies that residents and local actors entrust to the political institution closest to them, contributing to shaping strategies rather than merely implementing them.
The document is structured in three sections, each pairing concrete municipal commitments with calls to G7 Leaders. The first positions cities as custodians of peace, democracy, and global solidarity: it reaffirms support for Ukrainian municipalities as strategic actors in their own reconstruction, calls for the institutionalization of city diplomacy as an instrument for navigating geopolitical risks, condemns threats against democratically elected local officials, and advocates for scaled-up, reciprocal city-to-city cooperation with the Global South. The second addresses urban resilience, housing, and sustainable urban development, framing resilience as four inseparable dimensions — socio-economic, democratic, environmental, and economic — and identifying access to adequate, affordable, and sustainable housing as a foundational pillar, alongside calls to bridge the urban adaptation finance gap. The third mobilizes cities as engines of competitiveness and sustainable transformation, with priorities ranging from equitable AI infrastructure and digital safety to building decarbonization, sustainable mobility, biodiversity, and integrated urban transformation strategies.
Supported by a permanent secretariat, the Urban7 commits to sustaining this engagement across future G7 presidencies — beginning with the 2027 U.S. Presidency — to ensure continuity and the progressive deepening of the urban dimension within the G7 process.
Highlights from the Urban7 Closing Session
Watch the full Urban7 2026 Closing Plenary.
The City Diplomacy Lab serves as Scientific Coordinator of the Urban7 2026 process, supporting the coherence, ambition, and political impact of the Summit and its Declaration.