The recent growth of urban brownfield redevelopment and greenfield protection initiatives is a positive indicator of the redirected priorities of the public and private sectors to restore and regenerate sustainable places and spaces in the American landscape. Concepts such as “sustainable development” and “environmental stewardship” are universal ideals, achievable goals, and intergenerational necessities that have practical applications. This article suggests that brownfield redevelopment and greenfield protection are land use strategies that emphasize long–term sustainability goals rather than unrestrained economic growth and resource expansion. Brownfield initiatives are deeply intertwined with community economic redevelopment and job creation, and they are also important aids in health and safety issues, neighborhood restoration, and the reuse of urban space to counter suburban sprawl into green, open spaces. Planning processes such as “smart growth” and “urban infill” help to better manage development and slow down sprawl. Central to smart growth are brownfields and infill development, because smart growth strives to use underdeveloped areas within the urban environment more efficiently. Urban infill, such as brownfields redevelopment, holds the promise of enabling cities and communities to grow and evolve over time through many incremental changes. By creating places of enduring value and by restoring and reusing buildings and other urban spaces, we can build common ground between sustainability and historic preservation efforts, and provide alternatives to developing greenfield sites.