While Gaudí was finishing the construction of the Episcopal Palace of Astorga, his friend and patron, Eusebi Güell recommended that he build a house in the center of León.

In 1929, the savings bank of León, Caja España, bought the building and adapted it to its needs, without altering Gaudí's original project.

The building's principal entrance is crowned by a wrought iron inscription with the name of the company and by a stone sculpture of Saint George shown as he is slaying a dragon.

During the restoration of the building in 1950, workers discovered a tube of lead under the sculpture containing the original plans signed by Gaudí and press clippings from the era.

On the ground floor, the architect used —for the first time— a system of cast-iron pillars in a frame structure, allowing for a more open plan, without the need for the load-bearing walls to distribute it.