Given the right conditions [e.g. flexible rules for spatial growth, shrinkage or land use] up to 68% of the end users do modify their physical surroundings. The need for further negotiations between individuals and authorities is an urgent phenomenon for emerging city environments; either in a marginalized informal town or in a post industrial suburban community. Urban interventions require mutual agreements of diverse players both in the gecekondu’s that surround Istanbul and Dutch vinex’es