There is a secret heartbeat in Barcelona that is usually only hinted at behind closed curtains, in dimly lit entryways, or high up in those domes that silhouette the sky but which we rarely set foot in. Walking through the city almost always means settling for the exterior. However, there is one time of year when that invisible barrier of glass, brick, and intercoms vanishes completely. It’s the 48H Open House BCN, the grand ritual of architectural voyeurism in which the city finally invites us into its living room.
In its 17th edition, to be held on the weekend of October 24 and 25, 2026, the festival champions “everyday architecture.” The goal is for us to look with fresh eyes at those places we pass through almost out of habit—streets, squares, parks, and, of course, buildings—and ask ourselves how they shape our daily lives.
What is it?
A festival that opens the doors to more than 200 spaces—ranging from private homes and offices to historic sites and unfinished architectural gems—with free guided tours led by architecture professionals.
When does it take place?
The weekend of October 24 and 25, 2026.
Which municipalities does it cover?
Barcelona, Badalona, L’Hospitalet, Sant Joan Despí, Sitges, and Vilassar de Dalt.
How do you sign up?
The vast majority of tours and venues do not require prior registration (though there are a few exceptions). To avoid lines, the organizers will provide a real-time map on their website and social media showing the number of visitors and wait times at each building.
The big news:
30% of the spaces open to visitors in this edition are completely new.
