Our Mission Oakland Heritage Alliance is a non-profit membership organization which advocates the protection, preservation, and revitalization of Oakland’s architectural, historic, cultural and natural resources through publications, education, and direct action. OHA is a non-profit organization that serves as a bridge connecting Oakland’s past to its present and future. We work to protect, preserve and revitalize Oakland’s architectural, historic, and cultural resources by providing programs and services that inform Oakland’s diverse population about the importance of these resources and, through our advocacy and educational programs, to encourage them to do the same. From the beginning, OHA engaged residents, policymakers, elected officials and others in exploring strategies to preserve Oakland’s irreplaceable cultural and architectural heritage. Activities sponsored by the organization focus largely on educational, outreach and advocacy programs. Each summer our award winning walking tours introduce hundreds of people to Oakland’s diverse architectural, cultural and natural heritage. These tours bring history alive and help people explore Oakland’s vibrant and history-filled neighborhoods.