The former international airport of Hellinikon is located in the southern coastal zone of Attica and was in operation till 2001. The idea of creating a metropolitan park in the area was first initiated in 1995 , following the ratification of the contract for the construction and operation of the new airport at Spata in eastern Attica (El. Venizelos). In 1996 a research project for the creation of the park started. Although, it was never completed, as in 1997 Greece undertook the organization of Olympic Games and several sport facilities were created there. Although, all government responsible declared that the buildings were provisional and the area would be a park. Nevertheless, in December 2003, the Ministry of Environment, Spatial Planning and Public Works (now renamed to Ministry of Environment, Energy and Climate Change (YPEKA)) launched an international architectural competition for the creation of a metropolitan park as well as the development of the area, comprising business buildings, residences, restaurants, etc. In 2007 the Minister presented a proposal for the area with business buildings, malls and residences of 130 HA.