Madrids famous Palacio de Comunicaciones on the Plaza de Cibeles is to be renovated, giving 60 percent of its floor space over to museums, a music room, conference halls, information centres and temporary and permanent exhibitions. 67 million is to be spent on building works which should take 2-and-a-half years to complete. The first part of the building project includes the installation of four panoramic elevators on both sides of the main entrance from the Cibeles Plaza. A glass roof is to transform the patio outside the building to create the Saln de la Villa, the local administrations information centre for the public, which will also house the citys Caja de Msica music centre, with a 300-seat auditorium below ground level. Exhibition space for the art and architecture of the city of Madrid in the 20th and 21st centuries will be created on the seventh floor. The Palacio, built between 1904-17 for Madrids Post and Telegraphs headquarters, was ceded to the city council by the Spanish government in 2003.