Environmentalism. All people are entitled to healthy communities and environments that are supportive of human life and the life of non-human species. We believe that achieving this requires a stable climate.
Building for people. We promote vibrant, diverse urban communities that nurture their inhabitants and benefit society, and provide abundant housing and opportunities for all.
Sharing space. We value efficient, equitable use of all limited, shared resources; in particular, our planet’s land is an essential, fixed resource whose benefits should be broadly shared.