In 1885, Eusebio Guell commissioned Antonio Gaudi to construct his residence in the heart of Barcelona, ​​specifically in the street Nou de la Rambla. Gaudí conceived a solemn and ostentatious building, and used rich and expensive materials such as marble, hardwood and wrought iron. The sobriety of the façade, most likely due to its location on a small site on a narrow street, contrasts with the lavishness of its interior. Parabolic arches on the façade are decorated with wrought iron railings, and give away to a wide entrance, allowing for the entry of horses and carriages.

The building is accessed through a magnificent central hall covered by a dome that exceeds the height of the roof and, through perforations shaped like a star, lets in sunlight. The hall, with a chapel attached, is richly decorated with columns, windows and grilles and leads to other rooms, all replete with windows and ornate furniture. The palace also has a large stable basement, a feature that few houses had.

There is also innovation in the use of chimneys located on the roof of the building; elements frequently used in the imaginative decoration of Gaudí. In fact, it is in the design of these chimneys that the architect first used a decorative resource that became most representative of his work: the 'trencadís' (mosaic).