Authors: Miguel A. Alonso del Val, Rufino J. Hernández Minguillón, Álvaro Cerezo Ibarrondo. Collaborators: Egoitz Arana, Amaia Hilario, Amanda Indart, Iván Escalante, Clara González. Technical Architects: Ana Moral García, Miguel Aldaz García-Mina. Engineering: GE Asociados. Gross external area:13,219.88 sqm. Developer: Visesa. Contractor: Construcciones Sobrino. Project Date: June 2004. Completion Date: September 2007. Photographer: José Manuel Cutillas - Proyectar.

As a general premise, the aim has been to group together spaces used for the same purposes in order to avoid noise problems, minimise and economise on the interior layouts, localise wet rooms and false ceilings, group ventilation elements and drains, controlling their appearance in roofs and ground floors and below ground level. Similarly, the aim has been to make a distinction between day and night areas, the serving and the served spaces, minimise the surface area dedicated to hallways and landings, and providing the maximum surface area possible for wardrobes and storage without affecting the habitable surface area.

The building has been distributed following as far as possible the functional requirements of the protected housing programme, without sacrificing the achievement of a quality architectural proposal, in accordance with the urban, technical and economic conditioning parameters as a whole.