After the major improvements made for the 82 World Cup, the stadium continued to be developed and modernised. 

In the 1999-2000 season, a modernisation process known as ‘Project Leader XXI’ was carried out. A multitude of services were put in place to help members and fans: the Real Madrid Line (a telephone information line for members and fans), the telephone sale of tickets (for the first time in history) and the transferable and financed season ticket. 

The capacity of the Santiago Bernabéu was distributed by sectors and the stadium was redesigned. The Third Amphitheatre on Calle Padre Damián was remodelled and 9,380 seats were installed. These were added to the 16,000 that had been installed the previous season in different areas. The capacity was reduced to 75,000 seats. Madrid's grand theatre became an all-seater stadium. 

When Florentino Pérez became president of Real Madrid, he launched the ‘Stadium Infrastructure Master Plan’. It envisaged the technical updating of the facilities and infrastructures, its commercial exploitation and the implementation of new lines of business. This has turned the stadium into a ‘365 days a year stadium’. It has four restaurants, the ‘Tour del Bernabéu’ and the largest sports shop in the world.