Both parts of the outcome document—the “Quito Declaration on Sustainable Cities and Human Settlements for All” and the “Quito Implementation Plan for the New Urban Agenda”—clearly enunciate three priorities that will frame the successful execution of Goal 11 and the urban aspects of the other SDGs, and lead to the achievement of sustainable urbanization in the coming decades. These priorities are: having a supportive governance structure, inventing and maintaining twenty-first century planning and managing urban spatial development, and establishing sound financing mechanisms. For overall guidance, they reference the International Guidelines on Urban and Territorial Planning, adopted in April 2015 by the Governing Council of the United Nations Human Settlements Programme (UN-Habitat). The Guidelines provide direction in establishing planning functions at several levels: national (e.g. connecting and balancing the system of towns and cities), metropolitan (e.g. regional economic development, rural-urban linkages, and ecosystem protection), municipal (e.g. design and protection of citywide systems of public space, capital investments in basic infrastructure, overall block layout, and connectivity), and neighbourhoods (e.g. site-specific design and local urban commons).