The next big changes did not occur until the early 1980s with the hosting of the 1982 FIFA World Cup in Spain. The stadium had to adapt to the changing times and with this, architects Rafael Luis Alemany and Manuel Salinas were hired for the stadium's renovation project. The brothers were sons of Luis Alemany Soler, who carried out the original construction project next to Muñoz Monasterio. The work lasted 16 months and had a cost of 704 million pesetas (US $4.7 million), of which 530 million was paid by the City of Madrid.