The Fundació Rafael Masó was created in 2006 by the architect's family, Girona City Council, Col·legi d'Arquitectes de Catalunya and Col·legi d'Aparelladors i Arquitectes Tècnics de Girona. Its mission is to study, research, debate, promote and disseminate the different aspects relating to architecture and urbanism from Modernisme and Noucentisme to the modern age. It also promotes the appreciation, study and preservation of architectural heritage in Catalonia and specifically and uniquely the architectural and cultural work of Rafael Masó i Valentí (Girona, 1880-1935).

The foundation's main offices are in the Casa Masó, one of the most important works by Rafael Masó, not only because it was the family home and birthplace of the architect, but also because it expresses the most significant features that define his work, especially his view of tradition as an essential element in modern architecture.

The house is also the starting point of the Rafael Masó Route: Modernisme and Noucentisme, an itinerary that includes 12 buildings by Masó in the city of Girona, allowing you to discover the evolution of the architect from his Modernisme period, which was greatly influenced by Gaudí, to his Noucentisme period, which was more in keeping with Central European Secessionism.