The proposal consists in mapping the area subsoil, a way to trace the contours of a terrain so broken up and disrupted on the surface. Two pile drivers will be installed in the extremities of an immense metallic platform - a true urban meter - existing in front of the abandoned building structure at av. Salim Farah. Sensors will locate to the long of the distance that separates the structure from SESC Belenzinho. In accordance with the soil resistance, evidence of the presence of foundations, plumbing and other implantations, the sensors will emit different signs, picked-up at SESC to make a mapping of this invisible configuration.