The proposal gives maximum consideration to the concept of the "Plaza", reconstructing the original aspect of the facades of the Plaza de España and the Calle de la Libertad since they are the ones which best conserve the original structure. However it was decided to eliminate part of the fachade of the Avenida de la Constitución because neither its shape nor its makeup bore any resemblance to the nearby houses. The multipurpose halls are visible as wooden lattice frameworks projecting from the aforementioned fachade.