Casa Bloc, Rationalist residential building in Sant Andreu, Spain
Casa Bloc is a rationalist residential building in Sant Andreu de Palomar, Barcelona, made up of five connected blocks arranged in an S shape and containing 207 apartments. The design follows rationalist principles, with each unit oriented to allow good air flow and natural light throughout the day.
The project was launched in 1932 by the Catalan regional government in response to the growing number of industrial workers moving into Barcelona. It was built during a period of political and social renewal, and today it is listed as a Cultural Asset of National Interest.
Casa Bloc was built to give workers a decent home, and that intention is still visible in the way the building is laid out. The shared stairwells and outdoor areas were designed so that neighbors could cross paths and share daily life naturally.
The building is in the Sant Andreu de Palomar neighborhood and is easy to reach from different parts of Barcelona. It is worth allowing some time to walk around the outside and take in the overall shape of the complex before going in.
One apartment has been kept as a museum with the original furnishings from the 1930s still in place, including hydraulic floor tiles and folding doors from the time of the Second Spanish Republic. Walking through it gives a concrete sense of how everyday life looked inside these walls nearly a century ago.
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