Chasing Warsaw - Socio-Material Dynamics of Urban Change since 1990; .

European cities over the last few years. The 19,000 housing units constructed in Warsaw in 2008 matched the corresponding number in London-a city four times Warsaw's size-and the figure was almost five times higher than that of the housing units built in Berlin or Prague. There are 405,000 square meters of office space currently under construction, as well as numerous large-scale public construction projects such as a new metro line, a bridge, a river boulevard, and a sewage treatment plant.

If it seems easy to quantify the urban transformation of Warsaw, the transformation process nevertheless remains a mystery in actual fact, akin to Lefebvre's "black box": "The architect and the urbanist [...] know what goes in, are amazed at what comes out, but have no idea what takes place inside" (Lefebvre 2003, 27f.). The processes of intense material and social transformation in Warsaw since 1990 can be interpreted in terms of a secondary urbanization. This does not, of course, mean that Warsaw had to first of all be urbanized to become a true city after 1989. Yet the various stages in the urbanization of Warsaw in the decades from 1918 until 1989 unfolded according to different paradigms compared with contemporary processes. In the aftermath of 1989 the last-socialist-paradigm lost its legitimacy almost overnight, although its material structures and patterns of social practices still continue to affect urban life. The new wave of urbanization, devoid of any bounding paradigm or guiding vision, was expanding rampantly rather than being an orderly set of planned procedures. In Lefebvre's parlance, this was "a critical phase" of urbanization, "a painful transition" (ibid., 28). What went into urbanization's "black box" at this stage at the beginning was the so-called socialist city-not so much as an ideal but as a real, functioning urban organism including built structures and social practices, which had developed at times in accordance with the system and at other times not. What came out of the box was indeed an amazing, if not occasionally scary mix of bazaars, cafés and conflicts, pho soup and property claims, shopping malls and artists, gardens, skyscrapers and much more. Most of these phenomena will be analyzed or at least mentioned in this book, but our main aim is to look into the "black box" itself and reveal some of the mechanisms at work inside.