Community building is a field of practices directed toward the creation or enhancement of community among individuals within a regional area (such as a neighborhood) or with a common interest. It is sometimes encompassed under the field of community development.
A wide variety of practices can be utilized for community building, ranging from simple events like potlucks and small book clubs, to larger–scale efforts such as mass festivals and building construction projects that involve local participants rather than outside contractors.
Activists engaged in community building efforts in industrialized nations see the apparent loss of community in these societies as a key cause of social disintegration and the emergence of many harmful behaviors. They may see building community as a means to increase social justice, individual well-being and reduce negative impacts of otherwise disconnected individuals.
Leadership, geography, history, socio-economic status all are traditionally used to explain success of community and its well-being. Robert Putnam in his book Bowling Alone finds that a community's well-being is dependent on the quality of relationships among the citizens of that community. He refers to this as social capital. Social capital creates a sense of belonging thus enhancing the overall health of a community. Putnam goes on to identify and examine the decline of social capital in America. Pressures of time and money, suburbanization, the effect of electronic entertainment, and perhaps most importantly the generational change appear to have all been contributing factors in the decline of social capital.