This diploma project deals with the hill of Selepitsari in the municipalities of Nikaia and Keratsini, that used to be a quarry, and its transformation to a social, cultural and educational core. Initially, data of the hill is studied and registered and then is analyzed through a walking procedure, for the better and in depth understanding of the needs and the restrictions of the area and the terrain. Therefore the area of study is limited to some part of the hill.

 An important element that influences the planning is the view from certain parts of the hill. A visual linking of the view to the Attica basin is attempted. The visual angles that emerge from the correlation of the hill to Attica are transferred to a larger scale on the hill and are turned into paths - tracings. The location of the hill in the Attica basin and the creation of the awareness of its location in space, are achieved through suggested paths which gradually reveal the visual connection with the geographical relief.

 Thus, an itinerary network and visual axes are created. Each course, is either a visual axis or an itinerary, is comprised of strips of land which act and behave independently creating hollows and  protrusions. The plasticity of the ground finally defines the itineraries and the visual axes. With the extraction or the settlement of the added material, a height difference is created that can be tuned into a sitting or a material change (for example suitable for planting). Moreover material is transferred from the ground level to a higher point in a kind of shed, creating space between the shed and the ground, which can be of functional usage (kiosks, refreshment bars). Three different practices of handling of the ground are followed, which attribute different height to the axel or the itinerary, depending on its significance in the network.

 Furthermore, interventions on points are suggested alongside and in contact with the courses. The long wise separation of the ground flows, gives a specific direction and motion and is transformed into a route.  In spite of all these the flux changes from longwise into crosswise. "Terraces" are suggested, which take advantage the morphology of the hill. Finally, the project deals with the steep and half-finished and creates observatories as internal cavings on the quarried parts of the hill.