Built between 1979 and 1983 as part of the Internationale Bauaustellung (IBA) in Berlin, Oswald Mathias Unger’s housing block at Lützowplatz was finally demolished at the end of february 2013, after only 30 years of existance. In this building Ungers theory of the city as green archipelago - which based on a small but very influential study he developed in collaboration with Rem Koolhaas, Hans Kollhoff and others at Cornell University - became visible. The housing block at Lützowplatz was an unusual link between the academic discourse and ordinary building practice - but in the end not worth to be preserved.
In order to conduct the following it is neccessary to view the boundary of the site - the catastral border - as a closed polygon and thus only focus on the inner mechanisms of the site.
Having established the site as an isolated entity we can now take the vertices of the polygon at every kink (fig 1) and use them to form connections and thus subdivide the inner, the land, that is defined by its border.
The subdivision is carried out in the 1st phase as follows: every vertex is connected to each other in order to receive sets of lines, each set defined by its underlying base point.
By doing so we receive 14 sets of lines (for 14 kinks). Since we established that the site is only the inner of its enclosing polygon, we discard every set of lines that has entities that cross the landforming line in order to connect with other points, thus we limit our selection in the first phase to 7 sets of lines.
Having done so, we receive lines that form entitites within the site that is itself only defined via a drawn line that doesn‘t exist in nature, so it is only natural to assume that the subdivision has created new land, since the process of inscribing a parcel of soil forms land. The net of new parcels may take whatever form there is (fig 3, fig 4), in our case we limit ourselves to the leftmost outcome, since the process described above generates only this very set of lines. The advantage of regarding a site as a closed space, if only virtual, is the disregarding of the outlying possible influences - everything inside our projected line is a land of itself, history and social issues and everything tangent us only in form of laws of the governing body (the state, the province, the parish our parcel is part of) that may or may have not influence on our new zoning, a microcosm that underlies only laws that be without any relation to the place itself […]