Casa Bloc

Casa Bloc is a residential complex in the Sant Andreu district of Barcelona, one of the standout examples of rationalist architecture from Spain's Second Republic era. Standing at 101 Passeig de Torras i Bages, it remains a reference point for anyone interested in early 20th-century urban planning and avant-garde housing design.

Who designed Casa Bloc?

The building went up between 1932 and 1936, the work of architects Josep Lluís Sert, Josep Torres Clavé and Joan Baptista Subirana, all members of GATCPAC — the Catalan group of architects and technicians pushing for progress in contemporary architecture. GATCPAC's circle believed housing should be fair and should actively support community life, and that philosophy shaped every part of the project. The goal wasn't just another block of flats, but a model estate that treated the housing needs of working-class families with genuine dignity.

What makes it stand out?

The design introduced a new way of organizing residential space: functional, well-lit units, shared communal areas, and a layout meant to encourage neighbors to actually interact with one another. It was one of the earliest deliberate attempts in Catalonia to raise living standards for working-class residents rather than leaving them in dense, makeshift housing. The outbreak of the Spanish Civil War cut the project short, so parts of the original vision were never carried out at full scale.

What can you see when you visit?

In 2012, following a careful restoration led by the Institut Català del Sòl and the Institut de Cultura de Barcelona through Disseny Hub Barcelona, apartment number 1/11 opened to the public. It has been furnished and fitted out exactly as its original creators intended, giving visitors a rare, tangible sense of what "modern living" meant for a working-class family in interwar Barcelona. The building itself, recognized as a cultural property in Barcelona, is also worth seeing from the outside — its stark, geometric form is a striking piece of architecture in its own right.

How do you get to Casa Bloc?

Casa Bloc sits in Sant Andreu, in the northern part of Barcelona, an area with good public transport links to the city center. It's worth saving the address — 101 Passeig de Torras i Bages — in your maps app, since the building is tucked away in a quiet residential neighborhood rather than the usual tourist core. Before heading over, check the current opening hours for the show apartment, since access inside is limited and scheduled by the institution that manages the site.

Frequently asked questions

What is Casa Bloc? It's a residential complex built between 1932 and 1936 in Barcelona's Sant Andreu district, designed by architects linked to GATCPAC as a model housing estate for working-class families.

Who designed it? Josep Lluís Sert, Josep Torres Clavé and Joan Baptista Subirana — Catalan architects working within GATCPAC during Spain's Second Republic.

Can you go inside the building? Yes. Since 2012, apartment number 1/11 has been open to visitors, restored and furnished according to the original design.

Why wasn't the original plan fully completed? The Spanish Civil War broke out during construction, interrupting the project and leaving part of the original scheme unrealized.