The main characteristics of public space are accessibility and usability for all citizens. Current developments primarily observed in cities, however, point to the fact that the distinction between public and private is becoming blurred. Instead urban spaces of hybrid character are emerging. Spaces with public functions like train stations, parks or pedestrian areas change character; semi-private spaces like malls or plazas expand. In order to obtain a realistic assessment of these developments the paper offers a critical appraisal of recent privatization trends followed by a brief systematization. After a discussion of feasible reasons for the loss of public space, the paper considers potential implications for the future of citizenship.