Olalquiaga Arquitectos was involved, together with Dionisio Hernández Gil, in the transformation of the Prado Museum, one of the most important ones worldwide. After winning a restricted competition, Olalquiaga Arquitectos did the complete restoration of the Prado Museum roof. Olalquiaga Arquitectos was also one of the ten finalists, among more than 500 international participants, selected for the final phase of the competition for the expansion of the Prado Museum.

Olalquiaga Arquitectos has completed a residential complex in the exclusive development of Sotogrande. The project included apartments and single-family homes with private gardens, as well as common spaces with gardens and swimming pools, all within a private and exclusive space design to enhance the qualities of such a privileged environment. Olalquiaga Arquitectos has also completed a residential development of eight carefully designed high-end homes in the Mirasierra area with spectacular views of the Guadarrama Mountains.

Olalquiaga Arquitectos has received several prices in international and national competitions and its work has been published in several magazines.