Brawls (tawuran) in the slum areas of Jakarta has a complex factors, not simply economic poverty, but social exclusion. Sociologically, the problem of these slums is weak communities structurally, culturally and processually. What they need is not only economic development but a proper social development. This study reveals how the structural-cultural and processual elements are interacting and cross­cutting each other creating a certain quality of socio-cultural life of the slums. The City Government believes that technocratic and bureaucratic development, with an emphasis on economic and physical sectors, will automatically improve the quality of social development. This study however, shows that a social engagement approach is needed to balance the deterministic and bureaucratic approach of the existing technocratic Development toward more inclusive Social Development.