Many artist-practitioners are familiar with Animating Democracy, a US not-for-profit that "inspires, informs, promotes, and connects arts and culture as potent contributors to community, civic, and social change." The toolkits offered by Animating Democracy are useful resources for understanding the basics of capacity building "on the ground."
An examination of these resources can be helpful in the planning, implementation... really the design (at least on paper), of your project.
After project implementation, reporting can be just as important. Evaluating the results of the process will help you to document lessons learned. Createquity offers an insightful view of the evaluation process for public art projects, some of which can be applied to other approaches to arts for social change.