This work is part of Malte Steiner’s project The Big Crash. The thematic departure point is the instability of the real estate market as a consequence of extreme gentrification. With a custom software data is taken from online housing advertisements in Berlin, i. e. images from the ads are analyzed to identify and separate objects from the background, used here to create a surreal architecture. Square-meter prices generate music fragments which are combined into a durational sound installation in the virtual space. The position of the spectator defines the piece and walking through it let the audience discover new details.