The International Tennis Centre, better known as the "Magic Box" was visited by the Mayor of Madrid, Alberto Ruiz Galardón, the deputy Mayor, Manuel Cobo, the chairman of Madrid Espacios y Congresos, Luis Blázquez, and the project's architect, Dominique Perrault, on 22 August. Also present were Rafael Montes, chairman of the FCC group and José Mayor Oreja, chairman of FCC Construcción.

The Magic Box is one of the large projects being built in Madrid, notable for its spectacular nature, its multi-functional sports capability and its nature as a key element in the development of the San Fermín district.

The main building, with 82,520 m2, has three courts, the central one which seats 12,000, the Ópera seating 3,194 and the Circo seating 2,730. All three courts are equipped with opening roofs to leave the playing area in the open air. The largest roof is 103 metres long by 73 wide. The complex also includes the indoor tennis building with 11 indoor courts, the high performance rooms, the tennis school with gymnasium, restaurants and administrative offices, the Media Garden, a lakeside garden and the Tennis Garden, an island with 16 tennis courts, two of which are lawn, two have fast surfaces and twelve are of clay.

This project, already 25% completed, is being developed by teams from the FCC Construcción Madrid Building I and III branches and is being prepared for the tennis masters in 2008. The work will be finished by 2 October 2009 when the International Olympic Committee will announce in Copenhagen the site for the 2016 Olympic Games.