Abstract
There has been a proliferation of self-construction groups in Germany today in response to the political abandonment of public housing. But these self-contained groups made up of the middle classes are operating within the framework of this politics. These groups aim for individual ownership of housing. They have no interest in the urban integration of their enclave. By contrast there is another type of situational urbanism, not well tolerated by the authorities, that is developing on the margins, in remote places. The particpative urbanism movements were very different, whether these were the Advocacy Planning of the 1970s which developed alternatives to urban projects, or Community Design Centres which worked with ethnic minorities. But this form of organisation tends also to be reclaimed by projects of homogenisation. So what, should be the conditions of intervention for a situated urbanism that is genuinely pluralist and non-hegemonic?