Since 2002 it has been the headquarters of CaixaForum Barcelona, a modernist-style building constructed between 1909 and 1912, located on the slopes of Montjuïc, Barcelona.

The building was the factory owned by Casimir Casaramona y Puigcercós, a cotton manufacturer specialising in making blankets and towels, who needed a new building to replace his old factory, which had burnt down.

Casaramona commissioned the project to Josep Puig i Cadafalch, one of the most outstanding architects of Catalan modernism, who designed a model factory, a horizontal construction consisting of a set of single-storey warehouses, which facilitated the transfer of goods by means of a system of internal streets that also served as firewalls, a similar system was used in the construction of the Hospital de San Pablo.

Two towers protruded from the building, which served as water tanks for fire protection and were one of the most modern at the time. It had no chimney, as it was electrically powered, which contributed to the general feeling of cleanliness.

The construction system used was exposed brick, following the traditional Catalan building system. The forms achieved with this material, in particular the finishing of the façades, the wrought iron elements and a limited use of stone and ceramics (in the towers and in a mosaic with the owner's initials) embellish the ensemble.

Special attention was paid to the lighting and the hygienic conditions of the workers: large windows were opened and the ceilings were raised to flood the building with light and air.

The great architectural value of the building was widely recognised and it was inaugurated in 1913, receiving first prize in the 1912 Barcelona City Council Annual Competition for Artistic Buildings. It was one of the first buildings to be erected on Montjuïc, although it was hidden behind later new constructions.

The "La Caixa" Foundation acquired and restored it in order to modernise it and adapt it to cultural and social uses. These renovations made up the current CaixaForum cultural centre in Barcelona.